MMS ASPOC Science Data Products Guide

Transcription

MMS ASPOC
Science Data Products Guide
Doc I D
MM S -A SP -I W F- TN - 00 4 2
Is su e
2. 0
Is su e Dat e
25 F eb ru ary 20 1 6
Pr ep ar ed b y
Hara ld J e sz en szky , PM ( h aral d .j e sz en sz ky@ o ea w. ac. at )
Ve ri fi ed b y
Gu n t e r La ky , Q A (gu n t er .laky @o e aw .a c.a t )
Ap p ro v ed b y Ru mi N aka mu ra , P I (ru m i.n ak a mu ra @o e aw .a c.a t )
In s titu t fü r W elt rau m for s ch u n g
Ös te r r e ich i sch e Akad e m ie d e r W i s s en sch af ten
Sch m ie d l st raß e 6, 80 42 Gr az
T el
+4 3 (3 16 ) 41 2 0 - 4 00
Fax
+4 3 (3 16 ) 41 2 0 - 4 90
E ma il
of fi c e.i w f @o ea w .ac .at
Doc. Title
MMS ASPOC Data Products Guide
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
2
0
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Change record
Is su e
Da te
Au th or
M od i f ica ti on s
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Mar 1 5, 2 0 13
HaJ e s
In it ial v e r sion
Dra ft .1
Se p 0 1, 20 13
HaJ e s
Up d a ted se ct ion 4
Dra ft .2
Oct 2 7 , 20 14
HaJ e s
All
1. 0
Se p 0 1, 20 15
HaJ e s
All
2. 0
Fe b 2 5, 20 16
HaJ e s
Ad ap t ed fo r co mp l ian c e w ith MM S CD F Fo rm at
Gu i d e v1 . 8
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
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Contents
1
Introduction ................................................................................. 5
1. 1
Sco p e ................................ ................................................................ ................5
1. 2
Ac ron y m s ................................ ................................ ..........................................5
1. 3
Doc u m en t s ................................................................ ........................................5
1. 3.1
Ap p l ic ab l e Do cu me n t s ................................................................ ........................5
1. 3.2
Re f er en c e D ocu m en t s ................................................................ .........................5
2
Instrument Description .................................................................. 6
2. 1
Ov e r vi e w ................................ ................................................................ ...........6
2. 2
Sc ie n c e Ba ckg rou n d ................................................................ ............................7
2. 3
Le v el 1 /2 R eq u ir e me n t s ................................................................ ......................8
2. 3.1
Sc ie n c e Data Sy s te m ................................................................ ...........................8
2. 3.2
In t er fac e s to/ f ro m SO C (Da ta Pro c e ss in g) ................................ .............................8
2. 4
In s tru m en t Ch ara ct er i st ic s ................................................................ ..................9
2. 4.1
Blo ck Di ag ra m o f AS PO C ................................................................ ................... 10
2. 4.2
E le ct ron i c s ................................................................ ...................................... 11
2. 4.3
Oth er Su b sy st e m s ................................................................ ............................ 11
2. 4.4
Sp a ce ca ft A cco m od at ion ................................................................ ................... 12
2. 4.5
Op e rat in g M od e s ................................................................ ............................. 13
3
General Conventions ................................................................... 16
3. 1
For ma t s ................................ ................................................................ .......... 16
3. 2
Stan d ard s ................................ ................................ ........................................ 16
3. 3
Prod u ct ion Pro c ed u r e s ................................................................ ..................... 16
3. 3.1
U sa ge o f D ata Prod u ct io n So ft wa r e ................................ ................................... 16
3. 4
Qu al ity Con tro l P ro ced u re s ................................................................ ............... 16
3. 5
Data D el i v ery Pro c ed u r e s ................................................................ .................. 17
4
ASPOC Data Products ................................................................... 18
4. 1
Ov e r vi e w ................................ ................................................................ ......... 18
4. 1.1
L1b /S IT L Data Pr od u c t s ................................................................ ..................... 18
4. 1.2
L2 Data Pr od u ct s ................................................................ .............................. 18
4. 2
Qu i ckl ook Dat a P rod u ct s ................................................................ ................... 19
4. 2.1
Fi le N a min g ................................................................ ..................................... 19
4. 2.2
Plot Pa ra m et er s ................................................................ ............................... 19
4. 3
Le v el - 1b / SI T L Data Pr od u ct s ................................................................ ............. 21
4. 3.1
Fi le N a min g ................................................................ ..................................... 21
4. 3.2
Be a m F il e St ru c tu r e ................................................................ .......................... 21
4. 3.3
Stat F il e Stru ctu r e ................................................................ ............................ 21
4. 4
Le v el - 2 Data Pr od u c t s ................................................................ ...................... 23
4. 4.1
Fi le N a min g ................................................................ ..................................... 23
4. 4.2
Fi le St ru c tu r e ................................................................ .................................. 23
5
Data Analysis and Visualization .................................................... 25
5. 1
Au top lot (h t tp : / /au to p l ot.o rg /) ................................................................ ......... 25
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
2
0
4/50
5. 2
CD AW lib (h ttp :/ / sp d f. gs fc .n a sa .go v / CD AW lib .h t ml ) ................................ ............. 25
5. 3
Qtran (h ttp :/ / ww w . sp .p h .i c.a c.u k / cs c - w eb / Qtr a n /) ................................ ............. 25
A
S A M P LE CDF S KE LE TO N F ILE S .............................................................. 26
A. 1.
L1 B B e am Da ta C DF Sk el eton F il e ................................ ....................................... 26
A. 2.
L1 B S tatu s Da ta CD F Sk e le ton Fi le ................................ ..................................... 33
A. 3.
L2 Data C D F S ke l eton F il e ................................................................ ................. 43
List of Figures
Fi gu r e 1: E l ec tron sp e ct ogra m , D SP T C - 1 PE A CE ................................ ....................................7
Fi gu r e 2: In st ru men t p i c tu r e ................................................................ ............................. 10
Fi gu r e 3: A SP OC o v era ll b loc k d i ag ra m ................................................................ ............... 10
Fi gu r e 4: E l ec tron ic s b o x ................................................................ ................................... 11
Fi gu r e 5: C ro s s - se ct ion of a n em itt e r mod u le ................................ ...................................... 12
Fi gu r e 6: A sp o c a c co mo d ation ................................................................ ........................... 13
Fi gu r e 7: Op er atin g mod e s ................................................................ ................................ 14
Fi gu r e 8: Sa mp l e q u ick l ook p lot ................................................................ ......................... 20
Fi gu r e 9: Sa mp l e A SP O C L1b d ata p lot ................................................................ ................ 25
List of Tables
Tab l e 1 : L1 B Be a m D ata CD F Sk el et on Fil e ................................................................ .......... 32
Tab l e 2 : L1 B Statu s Da ta C DF Sk el e ton Fi le ................................................................ ......... 42
Tab l e 3 : L2 Dat a CD F Sk el et on Fil e ................................................................ ..................... 50
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
1
Introduction
1.1
Scope
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Th e D ata P rod u ct s Gu id e ( DP G ) co n ta in s th e d e t ail ed d e sc r ip tion an d sp ec i fi cat ion o f
all L ev e l 1 / 2 d at a p r od u ct s g en era te d b y th e S ci en c e Da ta C en ter ( SD C ) i n
col lab o rat ion w ith th e A SP OC in str u m en t t ea m . Th e A SP O C I T F p ro v id e s SD C wi th d at a
p roc e s si n g so f tw ar e t o p rod u ce L e ve l 1, L e v el 2 an d Qu i ck look d ata p r od u c t s. Th e
AS PO C t ea m i s led b y th e Sp a ce R e s ear ch In sti t u te (I WF ) o f th e A u s tr ia n Ac ad e my o f
Sc ie n c e s lo ca ted in Gra z /Au st ria . Th e DP G i s in t en d ed a s a fu l ly se l f - con tain ed g u id e.
Th e p u rp o s e o f th e t e am a cti v ity f or A SP OC i s to p ro v id e a d atab as e w ith fu l l
in f or mat ion on th e d ata p rod u ce d b y th e A SP OC i n st ru m en t an d on it s t ec h n ic al s tatu s
th rou gh ou t th e m i s sio n . AS PO C i s an a cti v e e xp er im en t th at mo d i fi e s th e en vi ron m en t
of th e sp a c ec ra ft b y an en er ge ti c io n b e a m in ord er to i mp r o ve m ea s u re m en t s b y
oth e r i n s tru m en t s on b o ard . Th e s e i n c lu d e m ea s u re m en t s ob ta in ed b y F PI, H PC A an d
FIE L D S (A DP an d S DP ). D eta il ed kn o w le d g e a b ou t t h e op er ati on of A SP OC, i t s
op e rat ion a l s tatu s, an d of e ven tu a l an o ma li e s, i s c rit ic al for th e in te rp r eta tion o f th e
m ea su r e m en t s af f e ct ed b y A SPO C . S h or t - ti m e v aria tion s o f th e ion b e a m e mi tt ed b y
AS PO C cou ld b e i mp or t an t fo r a fu ll u n d er st a n d in g o f p l a sm a, e l ect r ic f i eld an d
sp a c ec ra ft p ot en ti al d a ta. Th e op e rat ion a l mo d e s o f A SPO C d e f in e th e m eth o d t o
con t rol th e i on b ea m cu rr en t. E ach me th od h a s it s o wn e f fe ct on th e io n b ea m .
1.2
Acronyms
AS PO C ............ Act i v e S p ac e cra ft Pot en tial C on tr ol
CD F ............... Co m mon Da ta For ma t
DC C ............... DC C on v er t er
DP G ............... Data Pr od u c t s Gu id e
DP U ............... Data Pr oc e s sin g Un it
IT F ................. In s tru m en t T ea m Fa ci li t y
SD C ............... Sc ie n c e Data C en te r
SI TL ............... Sc ie n ti st In Th e Loop
1.3
Documents
1. 3. 1
Ap p l icab le D o cu m en ts
ID
Ti tl e
AD 1
AD 2
1. 3. 2
Doc I D
Is su e
Da te
MM S SD C D e ve lop er G u i d e
1. 9
04 /1 1/ 14
MM S CD F Fi l e F or mat G u id e
1. 8
01 /1 9/ 16
Ref er en ce D o cu m en t s
ID
Ti tl e
Doc I D
Is su e
Da te
RD 1
MM S AS PO C U s er Man u al
MM S -A SP -I W F- U M -0 00 1
1. 0
09 /0 1/ 15
RD 2
CD F U s er’ s Gu id e
3. 6
02 /2 0/ 15
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
2
Instrument Description
2.1
Overview
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6/50
AS PO C i s a h er ita ge -d e s i gn in st ru me n t th at wa s ori gin all y fl o wn - a m on g oth e r s - on
E SA’ s Clu st e r sp ac e cra ft . Th e p r im ary ob je ct i ve of a cti v e sp a ce cr af t p ot en t ial con t rol
(A SP OC ) i s to in su re th e e f f ect i v e an d co mp le te m ea su r e m en t o f th e a m b ie n t p la s m a
d i str ib u t ion fu n ct ion s. Th e A SPO C in st ru m en t e mit s a b ea m o f p o s iti v e in d i u m i on s
at en e rg i e s o f ord er 4 t o 1 2 k e V an d cu rr en t s o f u p to ~ 70 µA in ord er to c on tr ol th e
el e ctr ic al p ot en tia l of th e sp a c ec ra ft. Th e e m is s ion o f p o si ti v e ch ar g e s f ro m th e
sp a c ec ra ft b ala n c e s t h e ex c e s s o f ch a rg e a ccu mu lat in g on th e v eh i cl e f ro m
in t era ct ion s wi th th e e n v iron m en t . For th e ca s e o f p ri ma ry c on c er n h er e, wh e re
p h oto - e mi s si on o f e l ec t ron s d ri v e s t h e sp a ce cr aft p ot en t ia l p o s it i ve r e lati v e to th e
p la s ma p ot en t ial, i t i s n ec e s sa ry to e mi t p o s i ti ve i on s. By ad ju s tin g th e p o s iti v e
e mi s si on cu r r en t, th e s p ac ec ra ft p ot en t ial c an th u s b e a d ju st ed to n e a r z er o va lu e.
Hen c e, th e ou tp u t of t h e in st ru m en t i s an en er g et ic i on b e a m w ith kn ow n en er gy an d
con t rol l ed cu rr en t . By a p p ly in g cu rr en t s o f s e v e ral 10 ' s o f µA on t h e MM S s p ac e cra ft,
th e eq u il ib r iu m p ot en t i al wi ll i n an y en vi ron m en t b e d ri v en i n to a re gi m e wh i ch i s
in d ep e n d e n t o f th e a m b ie n t p l a s ma d en si ty, a n d m ain ly b e g o ve rn ed b y th e ac ti v e
ion b ea m cu rr en t a n d th e p ro p e rti e s ( main ly cu r ren t an d en e rgy d i st rib u tion ) o f th e
p h oto - el e ctro n s fr o m th e s p ac e cra ft su rf ac e, b o th of th e m ar e c on stan t . A s a re su lt,
th e sp ac e cra ft p o ten tia l w il l b e cl a mp ed t o a val u e at wh ich th e cu r r en t of th e p h oto el e ctr on s o ve rc o min g th e p ot en t ia l b arr i er a rou n d th e sp a c ec ra ft e q u al s th e io n b e am
cu rr en t. Th i s eq u il ib r iu m i s e stab li sh ed a t p ot en t ial s o f a f e w Vo lt s p os iti v e, a s a n
in ve r se f u n ct ion o f th e i on b e a m c u rr en t .
Th e ion e m itt er s ar e l i q u id m eta l ion sou r c e s u s in g i n d iu m a s ch a rg e ma te ri al. A
cap i ll ary i s m ou n t ed in a h ea te d r e s er v oir wi th th e ch a rg e mat er ial . Wh en h i g h
vo lta g e i s a p p l ie d b et w e en th e cap il lary an d an ext ra cto r el e ct rod e, th e e l ec tro st ati c
st re s s at th e t ip o f th e cap i ll ary p u l l s th e l iq u i d m e tal in s id e t ow ard s th e e xtr ac tor
el e ctr od e an d a c on e wi th a ve ry s ma ll d i a me te r i s for m ed s o t h at f i eld e v ap or ati o n
tak es p la c e, a n d an ion b ea m i s for m ed .
T wo A SP O C in stru m en t s ar e in st al led on ea ch of th e fo u r s p ac e cra ft an d e mit io n
b ea m s in an t ip a ral l el d i re cti on fo r sy m m et ry re aso n s. E ach i n s t ru m en t con ta in s f ou r
in d i v id u a l e mitt e r s wh i c h ar e op e rat ed on e at a ti me , for r ed u n d a n cy r e aso n s an d in
ord er t o en su r e th e r eq u ir ed l i fe ti m e. T wo in d i vi d u al ion e mi tt er s a re con ta in ed i n
on e io n e mi tt er " mo d u le " an d h a v e a co m mo n h i gh v olt ag e su p p ly . T h e i n d iu m
re s er v oir an d th e ca p il l ary s itt in g on top ar e k ep t at h i gh v olt ag e. Th e ion sou r c e s
are in d i vid u ally an d in d ir ec tly h ea ted f ro m b el ow b y a r e si s tor e mb ed d ed i n to a
ce ra mi c in su la tor tu b e. Th is sch e m e en ab l es th e so u rc e to b e h ea t ed fro m a gr ou n d e d
p ow e r su p p ly an d th e ti p it se l f s ti ll b ein g k ep t at h ig h v olt ag e. Th e s el ec tion of t h e
act i ve e m itt er i s m ad e b y s w it ch in g h igh vol tag e to o n e o f th e e m itt er mod u l e s, an d
s ec on d ly b y h eat in g th e act i v e em itt e r. Th e s e c on d em itt e r in th e sa m e mo d u l e wi ll
n ot ign it e as th e tip r ad iu s o f a co ld e mi tt er w i th so lid in d iu m i s t oo la rg e fo r fi e ld
e mi s si on t o s et i n .
Th e A S PO C u n it c on si st s o f an e l ect ron ic s b ox to wh i ch t wo cy lin d ri cal m od u l e s
con ta in in g th e e mi tt er s are a tta ch ed . Both lo w an d h ig h v olt ag e h a rn e s s i s r ou t ed
ext e rn a lly b e tw e en th e b ox an d th e m od u l e s. Th e mod u l e s ar e m ech an i ca ll y
con n ec t ed to in cr ea s e t h e sti f fn e s s. O n top o f t h e mod u le s th e r e i s a p l ate t o w h i c h
th e ML I o f th e sp a c ec ra ft i s a tta ch ed . Al l p a rt s of th e u n it s ex c ep t th e top su r fa c e s
of t h e e m itt er mod u l e s are lo cat ed in s id e th e s p ac ec ra ft en v el op e.
2.2
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
2
0
7/50
Science Background
Th e A SP O C ion e mit te r in stru m en t s con t rol th e el ec tr ic p o te n tia l o f th e sp ac e cr af t
wi th r es p e ct to th e a mb i en t p l a sm a b y e mi ttin g a va riab l e cu r r en t o f p o si ti v e ion s . In
st ead y stat e, a sp ac e cra ft w il l ch ar g e t o an e q u i lib r iu m p ot en t ial wh e r e all cu rr en t s ,
n am e ly p h oto - el e ctr on cu rr en t cau s ed b y su n li gh t, p l a sm a cu r r en t s d u e to th e
en vi ron m en ta l e l ec tron s an d ion s, s e con d ary el e ctro n cu r r en t s ca u s ed b y th e i mp a c t
of p r i mar y e le ct ron s an d ion s, an d th e ion c u r ren t g en era te d b y th e two AS PO C s
co mp en sat e so th a t th e re i s n o n et t ran s f er of ch a rg e b et w e en t h e sp ac ec ra ft an d
th e en v iron m en t.
With ou t a cti v e c on tr ol, sp a c e c ra ft p ot en tia l s al on g th e or b it wou ld ran ge fr o m a f e w
vo lt s p o s iti v e in th e so l ar win d an d ma gn eto sh eath u p to s om e 10 ' s o f Vol t s in th e
p la s ma sh e et an d in th e ma gn eto sp h e ri c lo b e s . Pla s ma sh e et p ot en ti al s are e xp ect ed
to l ie b et w een th e ma gn e to sh eath an d lob e ca s es . S mal l n eg ati v e p oten tia l s a re
p os s ib l e in th e p la s ma s p h er e .
A SP O C o n
d i st u rb an c e s d u e
to p h ot o - e le c tron s
Fi gu r e 1: E l ec tron sp e ct ogra m , D SP T C - 1 PE A CE
Th e p r i mary o b j ec ti v e o f ASP O C i s th e r ed u ct ion of h igh p o s it i ve sp ac ec r aft p ot en ti al s
to a con st an t v alu e w h ich i s su f fi ci en t ly lo w (a f e w vo lt s ) to r ed u ce th e ab o v e
m en t ion ed d i s tu rb an c e s si gn if ic an tly . F i gu r e 1 sh o w s th e in f lu en c e of AS PO C on
p la s ma m ea su re m en t s p er fo r med at lo w en er gy.
Fu rt h e r i n f or mat ion on th e sc ie n ti f ic ob j ec ti v e s an d ab o u t in - orb it r e su l ts c an b e
fou n d in [ # # # ].
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
2.3
Level 1/2 Requirements
2. 3. 1
Sc ien c e Dat a S yst em
2
0
8/50
Th e A SP OC I T F p r ov id e s SD C with d ata p r oc e s sin g so ft w ar e to p r od u c e L e v el 1 , Le v e l
2 an d Qu i ck look d at a p r od u ct s .
Le v el 2 p rod u ct s w il l in c lu d e c om b in ed AS PO C 1 an d A SP O C2 d ata :

AS PO C 1 an d 2 a r e s een as a sin gl e v irtu al in st ru m en t

Ti m e st a mp s in te rp o lat e d to r ou n d (in te g er ) s ec on d s
Th e I T F su p p ort s th e S D C i n p ro d u c in g val id at ed Le v e l 2 p rod u ct s
Val id at ion p ro c ed u r e fo r L e v el 2 i s b a s eli n e d a s fo llo w s :

Val id at ed L e v el 2 p ro d u ct s ar e r e -p ro d u c ed at S D C b a sed on va li d ation
p ara m et er i n p u t ( f il e s) gen e rat ed at IT F an d s e n t to S DC af te r in sp e cti on o f
p re li m in ary L e v el 2 p r od u ct s b y th e I T F

Tu r n - arou n d t i me 1 w e e k m axi mu m
No L e v el 3 p r od u ct s a re for e s e en a t p r e s en t
Pro vi d e S D C wit h a cc e s s /v i su a liz ati on t ool s fo r d el i v er ed d a ta p rod u ct s , i f n ec e s sa ry

2. 3. 2
Data may b e vi su ali z ed b y s i mp l e l in e p l ot s, th er e m ay n o t b e a n e ed to p r ov id e
so ft wa r e for th i s p u rp o s e
In ter fac e s to / fr o m S OC (D ata Pr o ces s in g)
Sch ed u l ed b a tch p ro c e s s e s :

AS PO C L e v el 0 d ata f ro m SO C

T e mp erat u r e s, Main Po w er cu r r en t s fro m S OC

AS PO C u n va li d at ed L e v e l 2 d ata f ro m SO C (b a s el in e )

Le v el 2 v ali d at ion in f or mat ion or v ali d at ed AS P OC L e ve l 2 d at a to S OC
Ac c es s to SO C fo r ma in t en an c e o f cal ib r ati on d a ta b a s e
Ac c es s to SO C m ach in e f or A SP OC p r oc e s si n g an d vi s u al izat ion so ft w are t e st an d
ma in t en an c e
Ac c es s f or re tri e va l o f o rb it an d o th er in stru m e n t d ata f or s ci en ce val id ation
2.4
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
2
0
9/50
Instrument Characteristics
Th e in st ru m en t em it s p os iti v e ly ch a rg ed i on s ( i n d iu m) in ord er t o co m p en sat e o th e r
cu rr en t s in d u ce d b y Sol a r u ltra - v io le t rad i ati on a n d ot h e r e f fe ct s, an d th er eb y c la mp s
th e sp ac e cra ft p ot en t ial to va lu e s b elo w ab ou t 4 V .
Th e ma in fu n cti on s o f A SP OC ar e :

T wo p ai r s of Ion e mit te r s. An i on e mi tt er co n s i st s of th e e m itt er c ap i lla r y, th e
re s er v oir , an d a h eat er el e m en t .

High vol tag e su p p ly fo r two p ai r s o f Ion e mit t er s (0 to 12 kV, 0 t o 7 0µ A)

Sa fe mod e op e rati on o f HV su p p ly wi th l i mit ed ou tp u t v olt ag e

In d iu m h ea te r s u p p ly

Ion e mit te r cu rr en t or v olta g e c on tr ol loop

DC / DC con v e rt er t o g en era te se con d ary su p p ly vo lta g e s

DP U t o c on tr ol t h e s u p p li e s, to in t e rf ac e w ith t h e CI DP
Th e AS PO C in st ru me n t i s con f igu re d to c arry t w o e m itt e r mod u l e s at th e t op o f th e
el e ctr on i c s b ox . E ach m od u l e co n tai n s tw o in d i vi d u al e mi tt er s. Th e e m itt er mod u l e
sy st e m con si s t s o f th e f ollo w in g el e me n t s:

T wo e mit te r mod u le s m ou n t ed at th e to p of th e b ox . E a ch Mo d u l e c on tain s
two e m itt er s . T h e r e i s a co m mon h igh vo lta g e l i n e for b oth e mit te r s in s i d e a
Mod u le .

Me ch an ic al st if f en i n g r od s i n t er con n e ctin g b o th mod u l e s an d co n n e ctin g
th e m th rou gh tw o t ilt ed rod s wi th th e top p lat e of t h e e l ect ron ic s b ox

An M LI f lan g e, w h i ch i s a p la te on wh ich th e sp ac ec ra ft MLI can b e att a ch e d .

A sy st e m o f d r y n i tro g e n p u rg e lin e s s tart in g w ith a f itt in g fo r th e p u r g e l in e
co min g fro m th e sp a c ec raf t, an d l ead in g to t h e lo w er p a rt s o f b oth e mi tt e r
mod u l e s.

E xt ern a l h arn e s s : Th er e is lo w an d h igh v olta g e h arn e s s b e tw e en th e b o x an d
ea ch Mod u l e .
Th e ma in el e m en t s o f th e AS PO C el e ctr on i c s b o x ar e:

Di git al P ro ce s s in g Bo ard (D PU ) : It r e c ei v e s c om m an d s f ro m th e sp a ce cr af t an d
s en d s t el e m etry to th e sp a c ecr a ft. Th e D P U al so con t rol s t h e HV C th rou gh
an alo gu e an d d i git al s ig n al s. Th e DP U al so c on tr ol s t h e s el ec tio n o f f il a m en t s
in th e Mod u le s .

Lo w v olt ag e p o w er con v ert e r an d e mit te r f il am en t con v ert e r b oa rd ( D C C) : I t
gen e rat e s all s eco n d ary lo w v olt ag e s in c lu d in g th e va riab l e vo lta g e fo r th e
h eat e r el e m en t s (f il am e n ts ) in eac h o f th e fou r e mit te r s.

High vo lta ge c on v ert er b oard (H V C) : It p ro v id e s h i gh vo lta g e fo r th e act i ve
e mit te r mod u l e, an d s wi tch e s h i gh v olta g e b et w e en th e t w o e mit te r mo d u l es
acc ord in g to s ign al s r e c ei v ed fr o m th e DP U.
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Fi gu r e 2: In st ru men t p i c tu r e
2. 4. 1
B lo c k Di a gr am o f A S PO C
Fi gu r e 3: A SP OC o v era ll b loc k d i ag ra m
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E lec tr o n i cs
Th e el ec tron i cs b ox con si s ts of th r e e sta ck ed f ra me s (on e for ea ch p r in t ed c ir cu i t
b oard ). Fi gu r e 4 sh ow s t h e AS PO C E le ct ron i c s Bo x.
Th e t op p lat e o f th e b o x i s ri gid , a s i t su p p o rt s s e v e ra l i t em s m ou n t ed on top : T wo
cyl in d er s co n ta in in g th e e m itt er s, st if f en in g r od s for th e s e cy lin d e r s, an d a p u r g e
con n ec tor w h i ch sp l it s t h e ga s fl ow to b oth cyl i n d er s .
All h arn e s s b et w e en th e el ec tron i cs b ox an d th e e mi tt er s i s rou t ed ou t sid e th e
st ru c tu r e. T h e h arn e s s in c lu d e s l ow vol ta ge h arn es s f or th e h eat er e le m en t s an d
ext e rn a l t e mp erat u r e s e n so r s, an d h i gh vo lta g e cab l e s .
At th e v er y top th er e is a p la te to wh ich th e sp a ce cr af t M LI may b e att a ch e d ea si ly.
Fi gu r e 4: E l ec tron ic s b o x
2. 4. 3
Oth er Su b s yst em s
Th e ion e mi tt er s ar e l iq u id m et al i on s ou r c e s u si n g in d iu m a s ch ar ge mat e ria l. T w o
in d i v id u a l ion e m itt er s a re c on ta in ed in on e ion e mit te r " mod u l e " a n d h a v e a co m mon
h igh vol tag e s u p p ly . Th e in d i u m r e s er vo ir an d th e re s er v oi r si ttin g on to p ar e k ep t at
h igh v olt ag e.
Th e i on sou rc e s a re in d i vid u ally an d in d i r ect l y h ea ted f ro m b el o w b y a r e si st or
e mb ed d ed in t o a ce ra mi c in su l ator t u b e . T h i s s c h e m e en a b l e s th e so u r c e to b e h ea te d
fro m a grou n d ed p o w er su p p ly an d th e t ip i t se l f st il l b ein g k ep t at h i gh vo lta g e.
Th e s el e cti on o f th e a ct iv e e m itt er i s m ad e b y s wi tch in g h i gh v olt ag e t o on e o f th e
e mit te r mod u l e s, an d s ec on d ly b y h eat in g th e act i ve e m itt er . Th e s e co n d e mi tt er in
th e sa m e m od u l e wil l n ot ign it e a s t h e t ip rad i u s o f a co ld e mi tt er wit h sol id in d iu m
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is too lar g e f or fi eld e mi s s ion t o s et in . Fi gu r e 5 sh ow s a cr o s s - s e cti on th rou gh a n
e mit te r mod u l e.
Fi gu r e 5: C ro s s - se ct ion of a n em itt e r mod u le
2. 4. 4
Sp ac eca ft A cco m o d at io n
Th e t w o A SP O C in s tru m en t s ar e mou n te d at op p os it e si d e s o f th e in str u m en t d e ck b y
m ean s o f b ra ck et s a s s h own in Fi gu r e 6.
Th e ion b ea m s o f th e t wo A SP O C in st ru m en t s p oin t i n an tip ara ll e l d ir ec tion s su ch
th at th e c en te r a xi s o f th e i on b ea m i s eq u id is tan t to th e SD P p rob e s. T h e on ly
su r fa c e s e xp o s ed to sp a ce sh a ll b e th e t op p lat e s o f t h e e mit te r m od u l e s. Th e r es t of
th e in st ru m en t i s in sid e th e sp ac e cr af t en v elo p e or co v e re d b y M LI of th e sp ac ec ra ft .
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Fi gu r e 6: A sp o c a c co mo d ation
2. 4. 5
Op er a t in g M o d e s
Th er e a r e s e ve ral stat e ma ch in e s in FS W wi th a s ma ll n u mb e r o f op e ra tion a l mod e s
in eac h .
Th e mo st wid el y u s ed a c ti ve mod e o f th e in s tru m en t w il l b e th e con s tan t total cu rr en t
mod e (I T O T) . It se t s a co n st an t o u tp u t cu rr en t of th e h i g h vo lta g e u n it, w h ich in clu d e s
an y lo s s e s in si d e t h e le n s sy st e m. E x p e ri en ce h as sh o wn t h at th e r e su l tin g e mi s s io n
of an al mo s t co n s tan t i on cu rr en t fu l f il s a ll re q u ir e m en t s for sp ac e cr aft p ot en t ia l
con t rol in th e ma gn eto sp h er e an d th e sol ar wi n d e v en wit h ou t o n - b o ard f e ed b ack
fro m m ea s u r e me n t s o f t h e sp a c ec ra ft p ot en ti al .
Wh e n th e f u e l sa v e mo d e op tion ( S TO T ) i s a cti vat ed , th e in st ru m en t a ls o l is t en s t o
th e S / C p o te n ti al m e s sa ge . If th e b e am i s on , a n d th e p ot en t ial r e ma in s b e lo w th e
of f -tr ig g er va lu e f or mo re th an th e tr ig g er d el a y ti me , th en th e in st ru m en t s wi tch e s
in to h o t st an d b y mod e. If th e b ea m i s o f f, an d t h e p ot en tia l r e main s ab ov e th e on tri gg er v alu e for mo re t h an th e tri g ge r d elay t i m e, th en th e in s tru m en t p er fo r m s in
th e s am e w ay a s in th e sta n d ard tot al cu r r en t mod e.
In con st an t ion cu r re n t mod e ( II ON) th e p r o ce s s or o f th e in stru m e n t rea d s th e
mon ito r of th e ou tgo in g b ea m cu rr en t an d ad j u st s th e ou tp u t cu rr en t o f th e h igh
vo lta g e su p p ly to co mp e n sa te f or a n y lo s s e s in t h e sy st e m.
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Fi gu r e 7: Op er atin g mod e s
Wh e n th e fu e l sa v e mo d e op ti on ( SIO N) i s ac ti vat ed , th e in st ru m en t a ls o li st en s to
th e S / C p o te n ti al m e s sa ge . If th e b e am i s on , a n d th e p ot en t ial r e ma in s b e lo w th e
of f -tr ig g er va lu e f or mo re th an th e tr ig g er d el a y ti me , th en th e in st ru m en t s wi tch e s
in to h o t st an d b y mod e. If th e b ea m i s o f f, an d t h e p ot en tia l r e main s ab ov e th e on tri gg er v alu e for mo re t h an th e tri g ge r d elay t i m e, th en th e in s tru m en t p er fo r m s in
th e s am e w ay a s in th e sta n d ard ion cu rr en t m o d e.
In th e so - cal le d f e ed b a c k mod e ( CP O T) , a m ea su re m en t o f th e sp ac e cra f t p o ten tia l i s
su p p li ed to A SP OC b y t h e FIE LD S In stru m en t a n d th i s in fo r mat ion i s t h en u s ed to
ad ju st th e b e am cu rr en t in o rd er t o ma in ta in a con st an t va lu e o f th e p oten tia l i n a
clo s ed -l oo p sch e m e. Th e m ea su re m en ts o f th e s p ac ec ra ft p ot en t ial a re u p d at ed on c e
e v ery s e con d an d s en t t o A SP OC vi a d ed i cat ed m e s sag e s ( CI DP B en t - Pi p e T el e m et ry) .
Wh e n th e fu el s a ve mod e op tio n ( SP O T) i s a ct i va ted , th e b ea m i s on , an d th e p ot en t ial
re ma in s b e lo w th e o ff - t rig g er v alu e f or mo r e t h an th e tri g ge r d el ay t i m e, t h en th e
in stru m en t s wit ch e s in t o h ot sta n d b y m od e . If th e b ea m i s o f f, a n d t h e p ot en t ia l
re ma in s ab o v e th e on -t rig g er val u e for mo re t h an th e t ri gg er d el ay t i m e, th en th e
in stru m en t p e r for m s in th e s am e w ay a s in th e sta n d ard f e ed b a ck m od e.
In sl a ve mod e ( SL AV ), t h e in st ru me n t p e rf or m s a s tart u p as i n con st an t i on cu r r en t
mod e. A s s oon a s n o r ma l op erat ion al sta tu s is re ach ed ( star tu p c o mp l e ted ), th e
in stru m en t li st en s to th e b e a m cu r r en t an d mo d e in fo r mat ion r ec e i ve d th rou g h th e
AS PO C statu s m e s sa ge f ro m th e oth er ( ma st er ) u n it ( CI DP B en t -P ip e Te l e m etry ) an d
fo llo w s th e ma st er .
Wh e n th e c o mp e n sati n g mod e op ti on ( C OM P) i s act i vat ed an d th e b ea m cu rr en t o f
th e ma st e r i s n on -z e ro, th e in stru m en t u s e s a s e t va lu e f or i t s o wn c on tr ol lo op t wi c e
th e s et valu e o f th e b ea m cu r re n t mi n u s th e b e am cu r r en t of th e ma st e r. In th is wa y
th e su m o f b oth i on b e am c u rr en ts st ay s at 2 ti me s th e va lu e of th e b ea m c u rr en t
co m man d ed to th e co m p en sat in g sla v e .
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In s tan d b y m o d e ( S TD B ) b oth th e em itt e r s an d th e ir h ea t er s a re tu r n ed o f f. Th e
sta n d b y mod e i s a ls o th e s af e m od e o f th e i n s tru m en t, to wh ic h it re tu rn s
au ton o mo u sly u n d e r ce r tain e rro r c on d i tio n s . T h e t ran s iti on i n to st an d b y m od e a ls o
cl ear s a ll e rro r f lag s an d th e e m i tt er se l ect ion , an d d i sab l e s h igh vo lt ag e an d th e
h eat e r s.
In ord e r to r ed u c e th e ti m e b e for e e mi s s ion st ar ts, a h ot stan d b y m od e ( HO TS ) k e ep s
th e in d iu m i n a liq u id s t ate . Th is mod e can b e u s ed t o i n t err u p t t h e io n e mi s s ion b y
co m man d , w ith ou t ch an ge o f mod e s or e mi tt er s b e fo re an d a ft er t h e b r eak . Th e r e ign iti on ti m e i s r ed u ced to th e ti m e req u ir ed to s w ee p th e h i gh vo lta g e (l e s s th an a
min u t e) .
A te s t an d co m m is s ion in g mo d e ( TE S T ) var ie s th e tot al io n cu r r en t in st ep s o f 8 or 1 6
s w ith 2 or 4 µ A cu rr en t in c re m en t s . Th i s mod e wi ll b e u s ed oc ca si on a ll y to e st ab l i sh
th e cu r r en t - vo lta ge ch a ract e ri st ic s of th e sp a c e cra ft .
A t ec h n i cal mod e ( TE CH ) wi ll b e a vai lab l e fo r l o w - l e ve l co m ma n d in g d u r in g
co m mi s si on in g a n d r e -c om m is s ion in g o f e mitt e r s.
Sta rt -u p (S T UP ) i s a s tat e o f th e in st ru m en t a t t h e b e gin n in g o f an ac ti v e mod e wh e n
th e e mi tt er i s b e in g w ar m ed u p an d ion e m is s io n h as n ot y et st art ed . D ep en d i n g on
amb i en t t e mp erat u r e an d e mit te r co n d it ion i t ta ke s ab o u t 1 2 to 2 0 min u te s to r e ac h
a te mp e ratu re in sid e t h e e mitt e r s wh i ch i s su f fi ci en t t o i gn i te th e ion b ea m. Wi th in
th i s p er iod th e "in st r u m en t m od e" r ep or t ed in t e le m et ry wi ll b e alr ead y th e
co m man d ed tar g et mod e, a lth o u gh th er e i s n o i on e m i s sion ye t.
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General Conventions
3.1
Formats
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In g en er al, th e d at a p r o d u ct s w ill b e d el i ve r ed i n Co m mo n D ata Fo r mat (C D F) v e r sion
3. 6.0 a s sp ec i fi ed in [R D 2] .
Th e d ata p rod u ct s h a v e b ee n n a me d ac cord in g to th e con v en t ion s d e sc rib ed in th e
MM S CD F Fi l e f or ma t Gu id e [ A D2 ].
3.2
3.3
Standards

Gl ob al a n d v ari ab l e att r ib u t e s h a v e b e en ad ap t ed f ro m th e con v en tion g i ve n
in [A D2 ]

C CS DS A S CII ti m e sta n d a rd wi ll b e u s ed

Coo rd in at e sy st e m s a re n ot ap p li cab le f or t h e A SP OC d ata s e ts

All var iab le s w il l b e gi v e n in SI u n it s
Production Procedures
Th e M MS / AS PO C d at a p rod u cti on s o ft war e i s b as ed on t h e Clu s te r /A SP OC C A A
so ft wa r e wh i ch in tu rn i s b a s ed on th e DS P/ AS PO C a n d Clu s te r/ AS P OC p ip e lin in g
so ft wa r e v er si on s u s ed to g en er at e th e PP an d SP d ata p rod u ct s. T h e d ata s et s a re
gen e rat ed d i re ct ly fr o m th e MM S/ A SP OC ra w d ata fi l e s. T h e d i f f er en t d ata p r od u ct s
for a gi v en d at e ran g e a n d sp ac e cra ft ar e ge n e r ated si mu l tan eou s ly.
3. 3. 1
3.4
Us a ge o f Da ta Pr o d u c ti o n So ft war e
L1b :
~/ so ft wa re / l1b /a sp _l ev el_ 1. sh < st ar t > <end > < s c id> <as pid > d ai ly
SI TL :
~/ so ft wa re / l1b /a sp _l ev el_ 1. sh < st ar t > <end > < s c id> <as pid > s itl
L2 :
~/ so ft wa re / l2 /a sp _le vel _2 . sh < sta rt > <end > < sc i d>
QL:
~/ so ft wa re /q l/ as p_ quic klook. sh < st a rt > <end > < sc id > <a sp id > da il y
< sta rt >/ < en d >
sta rt /e n d t im e ( U T C) in th e fo r mat Y Y Y Y MM D Dh h m m s s
< sc id >
sp a c ec ra ft I D = m m s 1| m m s2 | m m s3 | m m s4
<a sp id >
AS PO C u n it I D = as p 1 | a s p 2
Quality Control Procedures
Qu al ity c on tr ol in c lu d es vi su al in sp e cti on o f p lo ts p r od u ced fr o m al l d a ta p rod u ct s ,
an d sp ot - ch eck s o f th e d ata p rod u ct s p rop er.
Th er e i s so ft war e in p la ce to v is u al iz e th e d ata p rod u ct s in co mb in ed d i sp lay s, wh i ch
fa ci lita t es th e d et e cti on of in con si s ten ci e s an d an o mal i es .
Th e con si s te n cy b et w e e n d ata p rod u ct s w il l b e ch e ck ed in man y a sp ec t s in c lu d i n g

Cor r ela tion b et w een ion cu r re n t an d sp a ce cr af t p ote n ti al,

Cor r ela tion b et w een ion cu r re n t an d tot al cu r r e n t f lo wi n g in to th e e mit ter ,
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
Cor r ela tion b e tw e en cu rr en t s in th e e m itt er sy st e m an d t h e d e ri v ed q u ali ty
fla g,

Cor r ela tion b et w een ion cu r re n t d a ta p rod u ct s a t d i f fe r en t t i me r e so lu ti on s,

Cor r ela tion b et w e en in s tru me n t s tatu s an d ion e mi s s ion . Th i s in c lu d e s s e v era l
ch e ck s, su ch a s ion e mi s s ion c an n ot o c cu r wi th co ld h e at er, i n so m e
in stru m en t m od e s, wit h ou t vo lta ge ap p li ed t o e mi tt er.
So m e o f th e s e ch eck s ca n b e ca rri ed ou t b y th e p rod u c tio n so ft wa re an d rai s e wa rn in g
m e s sag e s. Th e oth e r ch ec k s wi ll b e car ri ed ou t man u al ly/ v i s u al ly.
If an an o ma ly i s fou n d , wh i ch i s r ela te d to th e p roc e s si n g so ft w ar e, th e p r od u c tio n
wi ll b e stop p e d , an d n e w v er s ion s o f d at a p rod u ct s wi ll b e gen e rat ed af t er co rr e cti on .
If an id e n ti f ied a n o ma ly can b e attr ib u t ed t o th e in st ru m en t p er for m an ce o r st atu s ,
a n e w en try in to th e c a v eat s f il e wi ll b e g en er at ed .
Th e d ed ica te d d i sp lay s oft wa r e a ls o su p p o rt s m an u al en tri e s in to th e c av ea ts f il e.
In o rd er to ch e ck th e q u ali ty o f th e d ata p r od u ct s, n ot on l y th e d ed i ca ted so ft war e
wi ll b e u s ed , b u t al so th e C D F val id at ion to ol s w ill b e u s ed to ch e ck th e syn t ax o f th e
p rod u ct s.
3.5
Data Delivery Procedures
Th e A SP O C d at a p rod u ct s a re g en erat ed b y au to - p roc e s si n g j ob s wh i ch ru n in th e S D C
p rod u cti on en vi ron m en t . In ac co rd an ce with th e S DC d e ve lop er gu id e [ A D1 ] th e d a ta
fi le s ar e st or ed in a d ir e ctor y stru ctu r e wh i ch is orga n iz ed a s fol lo w s :
/m m s /d at a /
/m m s [ 1 -4 ]
/a sp [1 - 2 ]
/s r vy
/l 1b
/s it l
/b e a m
/Y Y Y Y
/M M
/s tat
/Y Y Y Y
/M M
/q l
/p lo t
/Y Y Y Y
/M M
/a sp o c
/s r vy
/l 2
/Y Y Y Y
/M M
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ASPOC Data Products
4.1
Overview
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AS PO C g en e rat e s q u i ck l ook, L 1 b /SI T L an d L2 s ci en c e d ata p rod u ct s. L1 b /SI T L an d L 2
d ata p rod u ct s a re p ro vi d ed in CD F f il e s, wh i le q u ick loo k p rod u ct s ar e r e p re s en t ed b y
d ata p lo ts sa v ed i n PN G f il e f or mat . Th e CD F f il e s ar e fo r matt ed in a cc ord an c e wi t h
th e MM S CD F F il e For m a t Gu id e. Th e M M S f il e n a m e c on ve n ti on i s ap p li e d to al l f il e s.
4. 1. 1
L1b / S IT L Da ta Pr o d u c ts
AS PO C L ev e l -1b an d S I T L d at a p rod u ct s ar e con tain in g c ali b rat ed r aw d ata h a vin g a
re so lu t ion t h at cor r es p on d s to th e d ata acq u i si tio n cy cl e o n -b oar d . Th e fol lo w in g
d ata p rod u ct s a re a va ila b le ( gi v en re s olu t ion s ar e typ ic al v alu e s) :
4. 1. 2

Ion b ea m cu r re n t, en er g y , ~ 1 s r e so lu t ion

Tot al e m itt er cu r r en t , ~ 1 s r e so lu t ion

Statu s an d h ou s ek eep i n g, ~ 4 0 s re s olu tion

Sp a ce cr af t p ot en tia l a s u s ed fo r c on tr ol loop , ~ 1 s r e so lu t ion

E mi tt er h ea te r cu r ren t a n d v olt ag e, ~ 20 s r e so l u tion

Statu s f la g s an d p ara m e ter s, ~ 4 0 s re s olu tion

Se con d ary v olt ag e s, ~ 6 0 s r e so lu t ion

In t ern a l t e mp era tu r e s, ~ 40 s r e solu tio n
L2 D ata Pr o d u cts
AS PO C L e v el -2 p rod u ct s are d ail y fi l e s con tain in g in t erp ola te d d ata at a re so lu t ion o f
1 s e con d (8 64 0 0 r eco r d s p er fi l e). Fo r s ci en ce a n aly s i s A SP OC w ill p ro vid e th e
fo llo w in g d ata :

Ion b ea m cu r re n t
o
in d i v id u a l A SP O C 1 an d AS PO C 2 cu rr en t s
o
an d th e su m

Ion b ea m en er g i e s o f in d i vid u al AS PO C s

Data q u al ity in for m ati o n

In d i vi d u al A SP OC 1 an d AS PO C 2 mod e s

AS PO C ON / OF F st atu s ( ON in d i cat e s th at a t l ea st on e A SP O C i s e mi tti n g io n s)
4.2
Doc. Title
Issue
Doc. Ref
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Revision
Date
Februray 25, 2016
Page
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Quicklook Data Product s
AS PO C Q u i ckl ook d ata p rod u ct s a re PN G grap h ic fi l e s c on ta in in g d a ily p lot s of k e y
p ara m et er s, wh i ch a re re fl e ct in g th e sta tu s of th e in st ru m en t ( e .g . b ea m cu rr en t ,
total cu rr en t, b ea m en e rgy , S/ C p ot en t ial ).
4. 2. 1
Fi le Nam in g
Th e AS PO C Q u i ckl ook d a ta p ro d u c ts ar e n a med a s fo llo w s :
m m s <id > _a s p 1 _s r vy _q l _ p lot _yyyy m md d _ v < v er >. p n g
m m s <id > _a sp 2 _s r vy _q l _ p lot _yyyy m md d _ v < v er >. p n g
4. 2. 2
<id >
sp a c ec ra ft I D [ 1 , 2, 3 or 4 ]
< v er >
fi le ve r sio n in th e for ma t X. Y .Z
Pl o t Par am et er s
Nam e
Lab e l
D im en s ion
Un it
S/ C p o t en ti al
SC _ PO T
0: [ ]
kV
Be a m cu rr en t
I_ BE A M
0: [ ]
µA
Tot al cu r r en t
I_ T O TA L
0: [ ]
µA
Be a m en erg y
E NE R G Y
0: [ ]
kV
Fi la m en t p o w e r
FIL _ PW R
0: [ ]
W
Fi la m en t im p ed an c e
FIL _ IMP
0: [ ]
Oh m
Th e gr ap h i c on th e n ex t p a g e sh o w a sa mp l e p lot o f AS PO C d at a fr o m th e Cl u s t er
mi s s ion .
Th e b a r at th e b o tto m o f th e p lot in d ic at e s th e q u ali ty o f th e ion e m i s si on :

OF F = i n s tru m en t n ot ac ti ve

Q1 -Q 5 = e mi s si on q u ali t y (1 = good , 5 =b ad )

CLN = cl e an in g a ct i ve

N OE = n o e m i ss ion ( st ar tu p ac ti v e )
In ad d it ion , t h e b ack gr ou n d co lor o f th e p lot sh o w s i f AS PO C i s a cti v e an d e mit s a
si gn if ic a n t a m ou n t of io n s.
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
Fi gu r e 8: Sa mp l e q u ick l ook p lot
2
0
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4.3
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
2
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Level-1b/SITL Data Products
AS PO C L e v el - 1b an d S I TL d ata p rod u ct s a re d ai ly fi le s co n tai n in g c al ib ra t ed r a w d at a.
Th e r e so lu t ion d ep en d s on th e d a ta a cq u is it ion cyc le on -b o ard (typ ic all y 1 s ec on d / 4 0
s ec on d s for b e a m / st atu s d a ta d u rin g n om in a l o p er ati on ) .
4. 3. 1
Fi le Nam in g
Th e AS PO C L e v el - 1b a n d SI TL d at a p ro d u c ts ar e n am ed a s fol lo w s:
< sc id > _ _ sr vy _ <ty p e > _ _yyyy m md d _ v < ve r >. cd f
4. 3. 2
4. 3. 3
< sc id >
sp a c ec ra ft I D [ m m s1 , m m s2 , m ms 3, or m m s 4]

AS PO C u n it [a sp 1 o r a sp 2]
<ty p e >
d ata p rod u ct ty p e [ l1 b o r s it l ]

d ata p rod u ct [b ea m or s tat ]
< v er >
B eam F il e S tr u ctu r e
Nam e
De scr ip t io n
Typ e
D im
Un it
E p och
Ti m e b a se
T T2 0 00
0: [ ]
ns
< sc id > _ _ ion c
Ion b ea m cu r re n t
RE A L4
0: [ ]
µA
< sc id > _ _t otc
Tot al b e am cu rr en t
RE A L4
0: [ ]
µA
< sc id > _ _ en er gy
Be a m en erg y
RE A L4
0: [ ]
kV
< sc id > _ _ sp o t
S/ C p o t en ti a l
RE A L4
0: [ ]
V
< sc id > _ _ fi lc
Fi la m en t cu r ren t
RE A L4
0: [ ]
mA
< sc id > _ _ fi l v
Fi la m en t vo lta g e
RE A L4
0: [ ]
V
< sc id > _ _ va r
Ti m e b a se d e lta ti m e
RE A L8
0: [ ]
ns
Nam e
De scr ip t ion
Typ e
D im
Un it
E p och
Ti m e b a se
T T2 0 0 0
0: [ ]
ns
< sc id > _ _p 01 5 v
+1 .5 V vo lta g e mon ito r
RE A L4
0: [ ]
V
< sc id > _ _p 03 3 v
RE A L4
0: [ ]
V
< sc id > _ _p 05 0 v
RE A L4
0: [ ]
V
< sc id > _ _p 12 0 v
+1 2. 0 V vol ta ge m on i tor
RE A L4
0: [ ]
V
< sc id > _ _n 12 0 v
-1 2. 0 V vol ta ge m on i tor
RE A L4
0: [ ]
V
< sc id > _ _td p u
DP U b o ard te mp e ratu re
RE A L4
0: [ ]
°C
< sc id > _ _td c c
DC C b oard t e mp erat u r e
RE A L4
0: [ ]
°C
< sc id > _ _tb ox
E -b o x t e mp era tu r e
RE A L4
0: [ ]
°C
Sta t F i le Str u ctu r e
Doc. Title
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Doc. Ref
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Revision
Date
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Page
< sc id > _ _t m od
Mod u le t e mp e ratu r e
RE A L4
0: [ ]
< sc id > _ _ st at
In s tru m en t s tatu s
UIN T 1
1: [ 4 ]
< sc id > _ _ lb l
In s tru m en t s tatu s lab el s
CH AR
1: [ 4 ]
< sc id > _ _ va r
RE A L8
0: [ ]
m m s < id >_ as p_ st at [1 ] : AS P O C dat a qua li ty f lag
0 = b ot h u n i t s o f f
1 = em i s si on ; I _BE AM /I _ TO T AL > 0. 9 7
4 = em i s si on ; I _BE AM /I _ TO T AL > 0. 3
6 = at l ea st on e u n i t in c le an in g mod e
7 = at l ea st on e u n i t in s tartu p m od e
25 5 = fi ll va lu e (n o d ata )
mm s < id >_ as p_ st at [2 ] : AS P O C mod e s ett ing s
Bit s 2 -0 = in st ru m en t m od e
Bit s 4 -3 = f il a men t n u m b er
Bit 5 = st art u p a cti v e f la g
Bit 6 = cl ea n in g a cti v e f l ag
mm s < id >_ as p_ st at [3 ] : AS P O C on /o ff s tatu s
0 = in s tru m en t i s n o t e mi ttin g
1 = in s tru m en t b ea m i s act i ve
mm s < id >_ as p_ st at [4 ] : S pare
°C
ns
2
0
22/50
4.4
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Date
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Level-2 Data Products
AS PO C Le v e l - 2 s ci en c e p rod u ct s a r e CD F fi l e s gen e rat ed on a d a ily b a si s . Th e d ata
con ta in ed i s a v era g ed w ith a r e solu tio n o f 1 se c on d .
4. 4. 1
Fi le Nam in g
Th e AS PO C L e v el - 2 d a ta p rod u ct s a re n a m ed a s f ol lo w s :
< sc id > _a sp o c _ sr vy _l 2 _y y y y m md d _ v < v er >. cd f
4. 4. 2
< sc id >
sp a c ec ra ft I D [ m m s1 , m m s2 , m ms 3 o r m m s4 ]
< v er >
Fi le S tr u ctu r e
Nam e
De scr ip t ion
Typ e
D im
Un it
E p och
Ti m e b a se
T T2 0 00
0: [ ]
ns
< sc id > _a sp o c _ion c
AS PO C b ea m cu r r en t
RE A L4
0: [ ]
µA
< sc id > _a sp 1 _ ion c
AS P1 ion b e am cu rr en t
RE A L4
0: [ ]
µA
< sc id > _a sp 2 _ ion c
AS P2 ion b e am cu rr en t
RE A L4
0: [ ]
µA
< sc id > _a sp 1 _ en er gy
AS P1 b ea m en e rgy
RE A L4
0: [ ]
kV
< sc id > _a sp 2 _ en er gy
AS P2 b ea m en e rgy
RE A L4
0: [ ]
kV
< sc id > _a sp o c _ statu s
In s tru m en t s tatu s
UIN T 1
1: [ 4 ]
< sc id > _a sp o c _lb l
In s tru m en t s tatu s lab el s
CH AR
1: [ 4 ]
< sc id > _a sp o c _ var
RE A L8
0: [ ]
mm s < id >_ as p_ st atu s [1 ] :
AS P O C dat a qua li ty f lag
0 = b ot h u n i t s o f f
6 = at l ea st on e u n i t in c le an in g mod e
7 = at l ea st on e u n i t in s tartu p m od e
mm s < id >_ as p_ st atu s [2 ] :
AS P O C 1 in st ru ment mo de
ns
Doc. Title
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Date
Februray 25, 2016
Page
mm s < id >_ as p_ st atu s [ 3 ] :
AS P O C 2 in st ru ment mo de
mm s < id >_ as p_ st atu s [ 4 ] :
AS P O C ON / O F F s tatu s
0 = b ot h in st ru m en t s a r e n o t e mitt in g
1 = at l ea st on e in st ru m en t b e am i s a ct i ve
2
0
24/50
5
Doc. Title
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Doc. Ref
MMS-ASP-IWF-TN-0042
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Date
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Data Analysis and Visualization
Th e A SP OC L 1b an d L 2 C DF sc i en c e d at a p rod u ct s ar e f u l ly IS T P co mp lia n t an d can b e
rea d b y se v e ral o p e n - s o u rc e so ft wa re p ac kag e s . Be lo w i s a se l ect ion o f tool s wh ic h
can b e u s ed fo r th e vi s u aliz ati on an d an a ly si s o f th e A SPO C d ata (th e d e s crip tio n s o f
th e too l s h a v e b e en t ak en fr om th e r e sp e cti v e w eb p a g e s ) .
5.1
Autoplot ( h ttp : //au t o p lo t .or g/ )
Au top lot i s an in te ra c ti v e b ro w s er f or d at a o n th e we b ; g i v e it a U RL o r th e n a m e of
a fi l e on y ou r co mp u t er an d it t ri e s to cr eat e a s en sib l e p lo t of th e co n ten ts in th e
fi le . A u top lot wa s d e v e lop ed to al lo w q u i ck a n d in t er act i v e b ro w s in g of d a ta an d
m etad ata fi l e s th a t a re of t en en cou n te r ed on t h e w eb .
Fi gu r e 9: Sa mp l e A SP O C L1b d ata p lot
5.2
CDAWlib ( h ttp :// sp d f . gs fc .n a s a. go v/C D A W l ib . h tm l )
CD AW lib i s a s et o f so ft wa re to ol s w rit ten in th e I DL l an gu ag e wh ich i s p ro v id ed b y
th e Sp a ce Ph y si c s D ata Fac il ity ( S PD F) . Th e li b r ary o f rou tin e s i s u s e fu l for r ead in g i n
d ata th at is stor ed in th e CD F fo rm at an d al s o f or p l ott in g th e d at a var i ab l e s a s t i me
s er ie s, im ag e s, r ad ar, a n d sp ec tro gra m s . I n ord er to u s e th e s of t war e I DL h a s to b e
in stal l ed on th e l oc al m ach i n e .
5.3
Qtran ( h tt p :// www . sp . p h . ic. ac .u k/c sc -w eb /Q t r an / )
Qtran i s m ain t ain ed b y th e Sp a ce an d At mo sp h er ic grou p in th e Ph y si c s D ep a rt m en t
at I mp e ria l Co ll e ge Lo n d on a s p ar t o f th ei r rol e in th e Cl u st er S ci en ce C en tr e with in
th e UK an d t h e Ro s ett a Pla s ma Con so rtiu m . Th e s e fo r mat s an d so f twa r e, wh il e
ori gin all y d e si gn e d wit h Cl u s t er in min d , ar e q u i te g en era l in ap p l i cab i li ty.
Qtran co n ve rt s fi l e s b et w e en th e fo llo w in g f or mat s :

N AS A CD F ( . cd f, sp e ci fi cal ly I S TP, C S DS, C AA an d Th e m is d es i gn s)

Clu s te r E x ch an g e For ma t (. c e f f or th e C lu st er A c ti ve A rch i v e)

Tab u la r f lat A S CII f il e s ( .q f t)

De li m it ed fl at AS CI I fil e s (.q fd )
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
A
Sample CDF Skeleton Files
A.1.
L1B Beam Data CDF Skeleton File
!
!
!
!
2
0
26/50
Skeleton table for the "mms1_asp1_srvy_l1b_beam" CDF.
Generated: Friday, 31 -Jul-2015 15:47:53
CDF created/modified by CDF V3.6.0
Skeleton table created by CDF V3.6.0_4
#header
CDF NAME:
DATA ENCODING:
MAJORITY:
FORMAT:
! Variables
! --------0/7
!
!
!
!
!
G.Attributes
-----------28
mms1_asp1_srvy_l1b_beam
NETWORK
COLUMN
SINGLE
V.Attributes
-----------27
Records
------0/z
Dims
---0
Sizes
-----
CDF_COMPRESSION: None
(Valid compression: None, GZIP.1 -9, RLE.0, HUFF.0, AHUFF.0)
CDF_CHECKSUM: MD5
(Valid checksum: None, MD5)
CDF_LEAPSECONDLASTUPDATED: 20150701
#GLOBALattributes
! Attribute
! Name
! ---------
Ent ry
Number
------
"Project"
1:
CDF_CHAR
{ "STP>Solar -Terrestrial Physics" } .
"Discipline"
1:
CDF_CHAR
{ "Space Phy sics>" "Magnetospheric Science" } .
"Source_name"
1:
CDF_CHAR
{ "MMS1>MMS Satellite Number 1" } .
1:
CDF_CHAR
{ "SRVY_L1B_BEAM>Level 1 -b Survey
"Descriptor"
1:
CDF_CHAR
{ "ASP1>Active Spacecraft " "Potential Control - sensor 1" } .
"Data_version"
1:
CDF_CHAR
{ "0.0.0" } .
"Generated_by"
1:
CDF_CH AR
{ "Harald Jeszenszky @ IWF/OAW" } .
"Generation_date"
1:
CDF_CHAR
{ "yyyymmdd" } .
"TITLE"
1:
CDF_CHAR
{ "MMS ASPOC Beam Parameters" } .
"TEXT"
1:
CDF_CHAR
2:
CDF_CHAR
3:
4:
CDF_CHAR
CDF_CHAR
5:
CDF_CHAR
{ "K. Torkar et al, Acti ve " "Spacecraft Potential " "Control Investigation" }
{ "Space Science Reviews, 2014, " "DOI: 10.1007/s11214-014-0049-3" }
{ "Further information:" }
{ "- " "http://www.iwf.oeaw.ac.at/" "en/research/near-earth-spa" "ce/mms/" }
{ " - http://mms.space.swri.edu/" } .
1:
2:
3:
CDF_CH AR
CDF_CHAR
CDF_CHAR
{ "150224 Initial version" }
{ "150831 Minor updates and fixes" }
{ "160205 CDF file format guide
1:
CDF_CHAR
{ "mms1_asp1_srvy_l1b_beam_00000000" -
"Data_type"
Data" } .
"MODS"
Data
Type
----
Value
-----
compliant" } .
"Logical_file_id"
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Date
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"_v0.0.0" } .
"Logical_source"
1:
CDF_CHAR
"Logical_source_description"
1:
CDF_CHAR
{ "mms1_asp1_srvy_l1b_beam" } .
{ " Level 1b Active Spacecraft" " Potential Control Survey " "Data" } .
"PI_name"
1:
CDF_CHAR
{ "K. Torkar, R. Nakamura" } .
"PI_affiliation"
1:
CDF_CHAR
{ "IWF" } .
"Mission_group"
1:
CDF_CHAR
{ "MMS" } .
"Instrument_type"
1:
CDF_CHAR
{ "Spacecraft Potential Control" } .
"Acknowledgement"
1:
CDF_CHAR
{ "Refer to IWF/OAW for ru les" " of acknowledgement" } .
"Skeleton_version"
1:
CDF_CHAR
{ "2.0" } .
"Software_version"
1:
CDF_CHAR
{ "Draft" } .
1:
CDF_CHAR
{ "Refer to I WF/OAW for rules of use"
"Time_resolution"
1:
CDF_CHAR
{ "1 second" } .
"LINK_TITLE"
1:
CDF_CHAR
{
2:
CDF_CHAR
{
CDF_CHAR
{ "LASP
4:
CDF_CHAR
{
"Rules_of_use"
} .
3:
"AT GSFC" }
"AT SWRI" }
SDC" }
"MMS1 ASPOC1" } .
"HTTP_LINK"
1:
CDF_CHAR
{ "http://mms.gsfc.nasa.gov/" }
2:
CDF_CHAR
{
"http://mms.space.swri.edu/index.html" }
3:
CDF_CHAR
{ "https://l asp.colorado.edu/mms/sdc/" }
4:
CDF_CHAR
{
"http://www.iwf.oeaw.ac.at/en/forschung/" "erdnaher-weltraum/mms/mms-aspoc/" } .
"LINK_TEXT"
3:
1:
CDF_CHAR
{ "MMS home page" }
2:
CDF_CHAR
{ "SMART package home page" }
CDF_CHAR
{ "Science Data Center" }
4:
CDF_CHAR
{ "24 -hour active spacecraft" " potential contro l data " "starting at dd Mon yyyy " "00:00 available at" } .
"File_naming_convention"
1:
"ADID_ref" .
#VARIABLEattributes
"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
"DELTA_PLUS_VAR"
"DELTA_MINUS_VAR"
"VALIDMIN"
"VALIDMAX"
"SCALEMIN"
"SCALEMAX"
"FORMAT"
"FILLVAL"
"VAR_TYPE"
"SCALETYP"
"MONOTON"
"DEPEND_0"
"DISPLAY_TYPE"
CDF_CHAR
{ "source_descriptor_data type" "_yyyyMMdd" } .
Doc. Title
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Doc. Ref
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Revision
Date
Februray 25, 2016
Page
"DICT_KEY"
"Frame"
"SI_CONVERSION"
"Sig_digits"
"SC_id"
"VAR_NOTES"
"FORM_PTR"
"UNIT_PTR"
"SCAL_PTR"
"TIME_BASE"
#variables
! No rVariables.
#zVariables
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"Epoch"
CDF_TIME_TT2000
!
!
!
!
!
1
0
T
VAR_COMPRESSION: None
VAR_SPARSERECORDS: None
(Valid sparserecords: None, sRecords.PAD, sRe cords.PREV)
VAR_PADVALUE: 0000-01-01T00:00:00.000000000
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"DELTA_PLUS_VAR"
CDF_CHAR
"DELTA_MINUS_VAR"
CDF_CHAR
"VALIDMIN"
CDF_TIME_TT2000
"VALIDMAX"
CDF_TIME_TT2000
"SCALEMIN"
CDF_TIME_TT2000
"SCALEMAX"
CDF_TIME_TT2000
"FILLVAL"
CDF_TIME_TT2000
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"MONOTON"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
"TIME_BASE"
CDF_CHAR
Value
----{
{
{
{
"Time tags" }
"Epoch" }
"ns" }
"Interval centred time tag rounded to " "nearest msecond " }
{ "mms1_asp1_var" }
{ "mms1_asp1_var" }
{ 1990 -01-01T00:00:00.000000000 }
{ 2100 -01-01T00:00:00.000000000 }
{ 1990 -01-01T00:00:00.000000000 }
{ 2100 -01-01T00:00:00.000000000 }
{ 9999 -12-31T23:59:59.999999999 }
{ "data" }
{ "linear" }
{ "INCREASE" }
{ "time_series" }
{ "time>epoch" }
{ "scalar>na" }
{
{
{
{
"1.0e-9>s" }
"14" }
"1" }
"J2000" } .
! RV values were not requested.
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
"mms1_asp1_ionc"
CDF_REAL4
1
0
T
Dimension
Variances
---------
2
0
28/50
!
!
!
!
!
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
VAR_COMPRESSION: GZIP.6
(Valid sparserecords: None, sRecords.PAD, sRecords.PREV)
VAR_PADVALUE: -1.0e+30
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"Beam Current" }
"I_ion" }
"uA" }
"ASPOC Ion Emission Current, " "1s resolution" }
0.0 }
100.0 }
0.0 }
100.0 }
"F5.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "current>mean_measured" }
{ "scalar>na" }
{ "1.0e-6>A" }
{ "4" }
{ "1" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms1_asp1_totc"
CDF_REAL4
!
!
!
!
!
1
0
T
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"Total Current" }
"I_tot" }
"uA" }
"ASPOC Total Extractor Current, " "1s resolution" }
0.0 }
100.0 }
0.0 }
100.0 }
"F5.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na" }
{ "1.0e-6>A" }
{ "4" }
{ "1" } .
2
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MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
"mms1_asp1_energy"
CDF_REAL4
!
!
!
!
!
1
Dims
----
Sizes
-----
0
Record
Variance
--------
Dimension
Variances
---------
T
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"Beam Energy" }
"Energy" }
"kV" }
"ASPOC Emitted Beam Energy, " "1s resolution" }
0.0 }
12.5 }
0.0 }
12.5 }
"F5.2" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "energy>mean_measured" }
{ "scalar>na" }
{ "1.0e3>V" }
{ "4" }
{ "1" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms1_asp1_spot"
CDF_REAL4
!
!
!
!
!
1
0
T
! Attribute
! Name
! --------
Data
Type
----
"FIELDNAM"
CDF_CHAR
"LABLAXIS"
CDF_CHAR
"UNITS"
CDF_CHAR
"CATDESC"
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"Spacecraft Potential" }
"S_pot" }
"V" }
"SDP Spacecraft Potential, 1s resolution" }
-50.0 }
200.0 }
0.0 }
100.0 }
"F5.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
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MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
{ "time_series" }
{ "potential>mean_measured" }
{ "scalar>na" }
{ "1.0>V" }
{ "4" }
{ "1" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms1_asp1_filc"
CDF_REAL4
!
!
!
!
!
1
0
T
! Attribute
! Name
! --------
Data
Type
----
"FIELDNAM"
CDF_CHAR
"LABLAXIS"
CDF _CHAR
"UNITS"
CDF_CHAR
"CATDESC"
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"Filament Current" }
"I_fil" }
"mA" }
"ASPOC Filament Current, 20s resolution" }
0.0 }
100.0 }
0.0 }
100.0 }
"F5.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na" }
{ "1.0e-3>A" }
{ "4" }
{ "1" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Varianc e
--------
Dimension
Variances
---------
"mms1_asp1_filv"
CDF_REAL4
!
!
!
!
!
1
0
T
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
"VALIDMIN"
"VALIDMAX"
"SCALEMIN"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_REAL4
CDF_REAL4
CDF_REAL4
Value
----{
{
{
{
{
{
{
"Filament Voltage" }
"V_fil" }
"V" }
"ASPOC Filament Voltage, 20s resolution" }
0.0 }
20.0 }
0.0 }
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Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
{
{
{
{
{
{
20.0 }
"F4.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na" }
{ "1.0>V" }
{ "4" }
{ "1" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms1_asp1_var"
CDF_REAL8
!
!
!
!
!
1
0
F
! Attribute
! Name
! --------
Data
Type
----
"FIELDNAM"
CDF_CHAR
"LABLAXIS"
CDF_CHAR
"UNITS"
CDF_CHAR
"CATDESC"
CDF_CHAR
"VALIDMIN"
CDF _REAL8
"VALIDMAX"
CDF_REAL8
"FORMAT"
CDF_CHAR
"VAR_TYPE"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
"Half Interval" }
"Half_int" }
"ns" }
"Half with of measurement interval" }
0.0 }
1.275e+10 }
"F13.1" }
"support_data" }
{ "1.0e-9>s" } .
! NRV value follows...
[] = 5.0e+08
#end
Table 1: L1B Beam Data CDF Skeleton File
2
0
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A.2.
!
!
!
!
Doc. Title
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Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
2
0
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L1B Status Data CDF Skeleton File
Skeleton table for the "mms4_asp2_srvy_l1b_stat" CDF.
Generated: Friday, 31 -Jul-2015 15:47:53
#header
CDF NAME:
DATA ENCODING:
MAJORITY:
FORMAT:
! Variables
! --------0/12
!
!
!
!
!
G.Attributes
-----------28
mms4_asp2_srvy_l1b_stat
NETWORK
COLUMN
SINGLE
V.Attributes
-----------29
Records
------0/z
Dims
---0
Sizes
-----
CDF_CHECKSUM: MD5
#GLOBALattributes
! Attribute
! Name
! ---------
Entry
Number
------
"Project"
1:
CDF_CHAR
"Discipline"
1:
CDF_CHAR
{ "Space Physics>" "Magnetospheric Science" } .
"Source_name"
1:
CDF_CHAR
1:
CDF_CHAR
{ "SRVY_L1B_STAT>Level 1 -b Survey
"Descriptor"
1:
CDF_CHAR
{ "ASP2>Active Spacecraft " "Potential Control - sensor 2" } .
"Data_version"
1:
CDF_CHAR
{ "0.0.0" } .
"Generated_by"
1:
CDF_CHAR
{ "Harald Jeszenszky @ IWF/OAW" } .
"Generation_date"
1:
CDF_CHAR
{ "yyyymmdd" } .
"TITLE"
1:
CDF_CHAR
{ "MMS ASPOC Status Parameters" } .
"TEXT"
1:
CDF_CHAR
2:
CDF_CHAR
3:
4:
CDF_CHAR
CDF_CHAR
5:
CDF_CHAR
{ "K. Torkar et al, Active " "Spacecraft Potential " "Control Investigation" }
{ "F urther information:" }
1:
2:
3:
CDF_CHAR
CDF_CHAR
CDF_CHAR
{ "150224 Initial version" }
"Logical_file_id"
1:
CDF_CHAR
{ "mms4_asp2_srvy_l1b_stat_00000000" "_v0.0.0" } .
"Logical_source"
1:
CDF_CHAR
{ "mms4_asp2_srvy_l1b_stat" } .
"Data_type"
Data" } .
"MODS"
Data
Type
----
Value
-----
compliant" } .
Doc. Title
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Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
1:
CDF_CHAR
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{ "Level 1b Active Spacecraft" " Potential Control Survey " "Data" } .
"PI_name"
1:
CDF_CHAR
"PI_affiliation"
1:
CDF_CHAR
{ "IWF" } .
"Mission_group"
1:
CDF_CHAR
{ "MMS" } .
"Instrument_type"
1:
CDF_CHAR
"Acknowledgement"
1:
CDF_CHAR
{ "Refer to IWF/OAW for rules" " of acknowledgement" } .
"Skeleton_version"
1:
CDF_CHAR
{ "2.0" } .
"Software_version"
1:
CDF_CHAR
{ "Draft" } .
1:
CDF_CHAR
{ "Refer to IWF/OAW for rules of use"
"Time_resolution"
1:
CDF_CHAR
{ "40 seconds" } .
"LINK_TITLE"
1:
CDF_CHAR
{
2:
CDF_CHAR
{
CDF_CHAR
{ "LASP
4:
CDF_CHAR
{
"Rules_of_use"
} .
3:
"AT GSFC" }
"AT SWRI" }
SDC" }
"MMS4 ASPOC2" } .
"HTTP_LINK"
1:
CDF_CHAR
2:
CDF_CHAR
{
3:
CDF_CHAR
{ "https://lasp.colorado.edu/mms/sdc/" }
4:
CDF_CHAR
{
"http://www.iwf.oeaw.ac.at/ en/forschung/" "erdnaher-weltraum/mms/mms-aspoc/" } .
"LINK_TEXT"
3:
1:
CDF_CHAR
{ "MMS home page" }
2:
CDF_CHAR
CDF_CHAR
{ "Science D ata Center" }
4:
CDF_CHAR
{ "24 -hour active spacecraft" " potential control data " "starting at dd Mon yyyy " "00:00 available at" } .
1:
"ADID_ref" .
#VARIABLEattributes
"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
"DELTA_PLUS_VAR"
"DELTA_MINUS_VAR"
"VALIDMIN"
"VALIDMAX"
"SCALEMIN"
"SCALEMAX"
"FORMAT"
"FILLVAL"
"VAR_TYPE"
"SCALETYP"
"MONOTON"
"DEPEND_0"
"DISPLAY_TYPE"
"DICT_KEY"
"Frame"
"SI_CONVERSION"
"Sig_digits"
CDF_CHAR
{ "source_descriptor_datatype" "_yyyyMMdd" } .
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
"SC_id"
"VAR_NOTES"
"FORM_PTR"
"UNIT_PTR"
"SCAL_PTR"
"DEPEND_1"
"LABL_PTR_1"
"TIME_BASE"
#variables
! No rVariables.
#zVariables
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"Epoch"
CDF_TIME_TT2000
!
!
!
!
!
1
0
T
VAR_PADVALUE: 0000-01-01T00:00:00.000000000
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"DELTA_PLUS_VAR"
CDF_CHAR
"DELTA_MINUS_VAR"
CDF_CHAR
"VALIDMIN"
CDF_TIME_TT2000
"VALIDMAX"
CDF_TIME_TT2000
"SCALEMIN"
CDF_TIME_TT2000
"SCALEMAX"
CDF_TIME_TT2000
"FILLVAL"
CDF_TIME_TT2000
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"MONOTON"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
"TIME_BASE"
CDF_CHAR
Value
----{
{
{
{
"Time tags" }
"Epoch" }
"ns" }
{ "mms4_asp2_var" }
{ "mms4_asp2_var" }
{ 1990 -01-01T00:00:00.000000000 }
{ 2100 -01-01T00:00:00.000000000 }
{ 1990 -01-01T00:00:00.000000000 }
{ 2100 -01-01T00:00:00.000000000 }
{
{
{
{
9999 -12-31T23:59:59.999999999 }
"data" }
"linear" }
"INCREASE" }
{ "time_series" }
{ "time>epoch" }
{ "scalar>na" }
{
{
{
{
"1.0e-9>s" }
"14" }
"4" }
"J2000" } .
! Variable
! Name
! --------
Data
Type
----
"mms4_asp2_p015v"
CDF_REAL4
Number
Elements
-------1
Dims
---0
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
T
! VAR_COMPRESSION: GZIP.6
! (Valid compression: None, GZIP.1 -9, RLE.0, HUFF.0, AHUFF.0)
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Date
Februray 25, 2016
Page
! VAR_SPARSERECORDS: None
! (Valid sparserecords: None, sRecords.PAD, sRecords.PREV)
! VAR_PADVALUE: -1.0e+30
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"+1.5V Monitor" }
"+1.5_mon" }
"V" }
"ASPOC +1.5V Voltage Monitor, " "60s resolution" }
0.0 }
5.0 }
0.0 }
100.0 }
"F5.3" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na" }
{ "1.0>V" }
{ "4" }
{ "4" } .
! RV values were not re quested.
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
"mms4_asp2_p033v"
CDF_REAL4
!
!
!
!
!
1
Dims
---0
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
T
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"+3.3V Monitor" }
"+3.3_mon" }
"V" }
"ASPOC +3.3V Voltage Monitor, " "60s resolution" }
0.0 }
5.0 }
0.0 }
100.0 }
"F5.3" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na" }
{ "1.0>V" }
{ "4" }
{ "4" } .
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MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
"mms4_asp2_p050v"
CDF_REAL4
!
!
!
!
!
1
Dims
----
Sizes
-----
0
Record
Variance
--------
Dimension
Variances
---------
T
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"+5V Mo nitor" }
"+5_mon" }
"V" }
"ASPOC +5V Voltage Monitor, " "60s resolution" }
0.0 }
6.5 }
0.0 }
100.0 }
"F5.3" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar >na" }
{ "1.0>V" }
{ "4" }
{ "4" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
"mms4_asp2_p120v"
CDF_REAL4
!
!
!
!
!
1
Dims
----
Sizes
-----
0
Record
Variance
--------
Dimension
Variances
---------
T
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"+12V Monitor" }
"+12_mon" }
"V" }
"ASPOC +12V Voltage Monitor, " "60s resolution" }
0.0 }
13.9 }
0.0 }
100.0 }
"F5.2" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
2
0
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Doc. Title
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Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
{ "scalar>na" }
{ "1.0>V" }
{ "4" }
{ "4" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
"mms4_asp2_n120v"
CDF_REAL4
!
!
!
!
!
1
Dims
----
Sizes
-----
0
Record
Variance
--------
Dimension
Variances
---------
T
(Valid sparserecords: None, sRecords.PAD, sRecords.P REV)
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
" -12V Monitor" }
" -12_mon" }
"V" }
"ASPOC -12.0V Voltage Monitor, " "60s resolution" }
-17.3 }
0.0 }
0.0 }
20.0 }
"F6.2" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na" }
{ "1.0>V" }
{ "4" }
{ "4" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Varianc e
--------
Dimension
Variances
---------
"mms4_asp2_tdpu"
CDF_REAL4
!
!
!
!
!
1
0
T
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
"VALIDMIN"
"VALIDMAX"
"SCALEMIN"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_REAL4
CDF_REAL4
CDF_REAL4
Value
----{
{
{
{
{
{
{
"DPU Temperature" }
"T_dpu" }
"K (Celsius)" }
"ASPOC DPU Temperature, 60s resolution" }
-273.0 }
227.0 }
0.0 }
2
0
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Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
{
{
{
{
{
{
100.0 }
"F6.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "temperature>mean_measured" }
{ "scalar>na" }
{ "1.0>K (Celsius)" }
{ "4" }
{ "4" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Recor d
Variance
--------
Dimension
Variances
---------
"mms4_asp2_tdcc"
CDF_REAL4
!
!
!
!
!
1
0
T
! Attribute
! Name
! --------
Data
Type
----
"FIELDNAM"
CDF_CHAR
"LABLAXIS"
CDF_CHAR
"UNITS"
CDF_CHAR
"CATDESC"
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"DCC Temperature" }
"T_dcc" }
"K (Celsius)" }
"ASPOC DCC Temperature, 40s resolution" }
-273.0 }
227.0 }
0.0 }
100.0 }
"F6.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "te mperature>mean_measured" }
{ "scalar>na" }
{ "1.0>K (Celsius)" }
{ "4" }
{ "4" } .
! RV values were no t requested.
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms4_asp2_tbox"
CDF_REAL4
!
!
!
!
!
1
0
T
! Attribute
! Name
! --------
Data
Type
----
Value
-----
2
0
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Doc. Title
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MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
"FIELDNAM"
CDF_CHAR
"LABLAXIS"
CDF_CHAR
"UNITS"
CDF_CHAR
"CATDESC"
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
{
{
{
{
{
{
{
{
{
{
{
{
{
"BOX Temperature" }
"T_box" }
"K (Celsius)" }
"ASPOC E -box Temperature, 40s resolution" }
-273.0 }
227.0 }
0.0 }
100 .0 }
"F6.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na" }
{ "1.0>K (Celsius)" }
{ "4" }
{ "4" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms4_asp2_tmod"
CDF_REAL4
!
!
!
!
!
1
0
T
! Attribute
! Name
! --------
Data
Type
----
"FIELDNAM"
CDF_CHAR
"LABLAXIS"
CDF_CHAR
"UNITS"
CDF_CHAR
"CATDESC"
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"MOD Temperature" }
"T_mod" }
"K (Celsius)" }
"ASPOC Module Temperature, 40s resolution" }
-273.0 }
227.0 }
0.0 }
100.0 }
"F6.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na" }
{ "1.0>K (Celsius)" }
{ "4" }
{ "4" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms4_asp2_stat"
CDF_UINT1
1
1
4
T
T
2
0
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Doc. Title
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MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
! VAR_PADVALUE: 255
! Attribute
! Name
! --------
Data
Type
----
Value
-----
"FIELDNAM"
CDF_CHAR
"LABLAXIS"
CDF_CHAR
"UNITS"
CDF_CHAR
"CATDESC"
CDF_CHAR
"VALIDMIN"
CDF_UINT1
"VALIDMAX"
CDF_UINT1
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_UINT1
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
"DEPEND_1"
CDF_CHAR
"LABL_PTR_1"
CDF_CHAR
{
{
{
{
{
{
{
{
{
{
{
"Instrument Status" }
"S_inst" }
" " }
"ASPOC Instrument Status, 40s resolution" }
0 }
254 }
"I3" }
255 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "flag>status" }
{ "scalar>na" }
{
{
{
{
{
" > " }
"3" }
"4" }
"mms4_asp2_lbl" }
"mms4_asp2_lbl" } .
! Variable
! Name
! --------
Data
Type
----
N umber
Elements
--------
CDF_CHAR
13
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms4_asp2_lbl"
!
!
!
!
!
1
4
F
T
VAR_PADVALUE: " "
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"CATDESC"
"FORMAT"
"VAR_TYPE"
Data
Type
----
Value
-----
CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
{
{
{
{
{
"Status Labels" }
"lbl_status" }
"ASPOC Status Labels" }
"A21" }
"metadata" } .
! NRV values follow...
[1]
[2]
[3]
[4]
=
=
=
=
{
{
{
{
"Data Quality "
"Mode Settings"
"On/Off Status"
"Spare Byte
"
! Variable
! Name
! --------
Data
Type
----
}
}
}
}
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms4_asp2_var"
CDF_REAL8
!
!
!
!
!
1
0
F
! Attribute
Data
2
0
41/50
Doc. Title
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Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
! Name
! --------
Type
----
"FIELDNAM"
CDF_CHAR
"LABLAXIS"
CDF_CHAR
"UNITS"
CDF_CHAR
"CATDESC"
CDF_CHAR
"VALIDMIN"
CDF_REAL8
"VALIDMAX"
CDF_REAL8
"FORMAT"
CDF_CHAR
"VAR_TYPE"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
"Half Interval" }
"Half_int" }
"ns" }
0.0 }
1.275e+10 }
"F13.1" }
"support_data" }
{ "1.0e-9>s" } .
[] = 5.0e+08
#end
Table 2: L1B Status Data CDF Skeleton File
2
0
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A.3.
!
!
!
!
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
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0
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L2 Data CDF Skeleton File
Skeleton table for the "mms2_aspoc_srvy_l2" CDF.
Generated: Fri day, 31-Jul-2015 15:47:53
#header
CDF NAME:
DATA ENCODING:
MAJORITY:
FORMAT:
! Variables
! --------0/8
!
!
!
!
!
G.Attributes
-----------28
mms2_aspoc_srvy_l2
NETWORK
COLUMN
SINGLE
V.Attributes
-----------29
Records
------0/z
Dims
---0
Sizes
-----
CDF_CHECKSUM: MD5
#GLOBALattributes
! Attribute
! Name
! ---------
Entry
Number
------
"Project"
1:
CDF_CHAR
"Discipline"
1:
CDF_CHAR
{ "Space Physics>" "Magnetospheric Science" } .
"Source_name"
1:
CDF_CHAR
"Data_type"
1:
CDF_CHAR
{ "SRVY_L2>Level -2 Survey Data" } .
"Descriptor"
1:
CDF_CHAR
{ "ASPOC>Active Spacecr aft " "Potential Control - " "sensors 1 and 2" } .
"Data_version"
1:
CDF_CHAR
{ "0.0.0" } .
"Generated_by"
1:
CDF_CHAR
{ " Harald Jeszenszky @ IWF/OAW" } .
"Generation_date"
1:
CDF_CHAR
{ "yyyymmdd" } .
"TITLE"
1:
CDF_CHAR
{ "MMS ASPOC Beam Parameters" } .
"TEXT"
1:
CDF_CHAR
2:
CDF_CHAR
3:
4:
CDF_CHAR
CDF_CHAR
5:
CDF_CHAR
{ "K. Torkar et al, Active " "Spacecraft Potential " "Control Investigation" }
{ "Further information:" }
1:
2:
3:
CDF_CHAR
CDF_CHAR
CDF_CHAR
{ " 150224 Initial version" }
"Logical_file_id"
1:
CDF_CHAR
{ "mms2_aspo c_srvy_l2_00000000" "_v0.0.0" } .
"Logical_source"
1:
CDF_CHAR
{ "mms2_aspoc_srvy_l2" } .
"MODS"
Data
Type
----
Val ue
-----
compliant" } .
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
1:
CDF_CHAR
2
0
44/50
{ "Level 2 Active Space craft " "Potential Control Survey " "Data" } .
"PI_name"
1:
CDF_CHAR
"PI_affiliation"
1:
CDF _CHAR
{ "IWF" } .
"Mission_group"
1:
CDF_CHAR
{ "MMS" } .
"Instrument_type"
1:
CDF_CHAR
"Acknowledgement"
1:
CDF_CHAR
{ "Refer to IWF/OAW for rules" " of acknowledgement" } .
"Skeleton_version"
1:
CDF_CHAR
{ "2.0" } .
"Software_version"
1:
CDF_CHAR
{ "Draft" } .
1:
CDF_CHAR
{ "Refer to IWF/OAW for rules of u se"
"Time_resolution"
1:
CDF_CHAR
{ "1 second" } .
"LINK_TITLE"
1:
CDF_CHAR
{
2:
CDF_CHAR
{
CDF_CHAR
{ "LASP
4:
CDF_CHAR
{
"Rules_of_use"
} .
3:
"AT GSFC" }
"AT SWRI" }
SDC" }
"MMS2 ASPOC" } .
"HTTP_LINK"
1:
CDF_CHAR
2:
CDF_CHAR
{
3:
CDF_CHAR
{ "https://lasp.colorado.edu/mms/s dc/" }
4:
CDF_CHAR
{
"http://www.iwf.oeaw.ac.at/en/forschung/" "erdnaher-weltraum/mms/mms-aspoc/" } .
"LINK_TEXT"
3:
1:
CDF_CHAR
{ "MMS home page" }
2:
CDF_CHAR
CDF_CHAR
{ "Science Data Center" }
4:
CDF_CHAR
{ "24 -hour active spacecraft" " potential control data " "starting at dd Mon yyyy " "00:00 available at" } .
1:
"ADID_ref" .
#VARIABLEattributes
"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
"DELTA_PLUS_VAR"
"DELTA_MINUS_VAR"
"VALIDMIN"
"VALIDMAX"
"SCALEMIN"
"SCALEMAX"
"FORMAT"
"FILLVAL"
"VAR_TYPE"
"SCALETYP"
"MONOTON"
"DEPEND_0"
"DISPLAY_TYPE"
"DICT_KEY"
"Frame"
"SI_CONVERSION"
"Sig_digits"
CDF_CHAR
{ "source_descriptor_datatype" "_yyyyMMdd" } .
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
"SC_id"
"VAR_NOTES"
"FORM_PTR"
"UNIT_PTR"
"SCAL_PTR"
"DEPEND_1"
"LABL_PTR_1"
"TIME_BASE"
#variables
! No rVariables.
#zVariables
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"Epoch"
CDF_TIME_TT2000
!
!
!
!
!
1
0
T
VAR_PADVALUE: 0000-01-01T00:00:00.000000000
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"DELTA_PLUS_VAR"
CDF_CHAR
"DELTA_MINUS_VAR"
CDF_CHAR
"VALIDMIN"
CDF_TIME_TT2000
"VALIDMAX"
CDF_TIME_TT2000
"SCALEMIN"
CDF_TIME_TT2000
"SCALEMAX"
CDF_TIME_TT2000
"FILLVAL"
CDF_TIME_TT2000
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"MONOTON"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
"TIME_BASE"
CDF_CHAR
Value
----{
{
{
{
"Time tags" }
"Epo ch" }
"ns" }
{ "mms2_aspoc_var" }
{ "mms2_aspoc_var" }
{ 1990 -01-01T00:00:00.000000000 }
{ 2100 -01-01T00:00:00.000000000 }
{ 1990 -01-01T00:00:00.000000000 }
{ 2100 -01-01T00:00:00.000000000 }
{ 9999 -12-31T23:59:59.999999999 }
{ "data" }
{ "linear" }
{ "INCREASE" }
{ "time_series" }
{ "time>epoch" }
{ "scalar>na" }
{
{
{
{
"1.0e-9>s" }
"14" }
"2" }
"J2000" } .
! Variable
! Name
! --------
Data
Type
----
"mms2_aspoc_ionc"
CDF_REAL4
Number
Elements
-------1
Dims
---0
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
T
2
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Revision
Date
Februray 25, 2016
Page
! VAR_PADVALUE: -1.0e+30
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF _REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHA R
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"Beam Current" }
"I_ion" }
"uA" }
"ASPOC Ion Emission Current Sum, " "1s resolution" }
0.0 }
100.0 }
0.0 }
100.0 }
"F5.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na" }
{ "1.0e-6>A" }
{ "4" }
{ "2" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms2_asp1_ionc"
CDF_REAL4
!
!
!
!
!
1
0
T
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"Beam Current" }
"I_ion" }
"uA" }
"ASPOC Unit 1 Ion Emission Current, " "1s resolution" }
0.0 }
100.0 }
0.0 }
100.0 }
"F5.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na " }
{ "1.0e-6>A" }
{ "4" }
{ "2" } .
2
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Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms2_asp2_ionc"
CDF_REAL4
!
!
!
!
!
1
0
T
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"Beam Current" }
"I_ion" }
"uA" }
"ASPOC Unit 2 Ion Emission Current, " "1s resolution" }
0.0 }
100.0 }
0.0 }
100.0 }
"F5.1" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na" }
{ "1.0e-6>A" }
{ "4" }
{ "2" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
"mms2_asp1_energy"
CDF_REAL4
!
!
!
!
!
1
Dims
----
Sizes
-----
0
Record
Variance
--------
Dimension
Variances
---------
T
(Valid sparserecords: None, sRecords.PAD, sRe cords.PREV)
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"Beam Energy" }
"Energy" }
"kV" }
"ASPOC Unit 1 Emitted Beam Energy, " "1s resolution" }
0.0 }
12.5 }
0.0 }
12.5 }
"F5.2" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
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MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
{ "scalar>na" }
{ "1.0e3>V" }
{ "4" }
{ "2" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
"mms2_asp2_energy"
CDF_REAL4
!
!
!
!
!
1
Dims
----
Sizes
-----
0
Record
Variance
--------
Dimension
Variances
---------
T
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
"VALIDMIN"
CDF_REAL4
"VALIDMAX"
CDF_REAL4
"SCALEMIN"
CDF_REAL4
"SCALEMAX"
CDF_REAL4
"FORMAT"
CDF_CHAR
"FILLVAL"
CDF_REAL4
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
{
{
{
{
{
"Beam Energy" }
"Energy" }
"kV" }
"ASPOC Unit 2 Emitted Beam Energy, " "1s resolution" }
0.0 }
12.5 }
0.0 }
12.5 }
"F5.2" }
-1.0e+31 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "scalar>na" }
{ "1.0e3>V" }
{ "4" }
{ "2" } .
! Variable
! Name
! --------
Data
Type
----
Number
Elements
--------
"mms2_aspoc_status"
CDF_UINT1
!
!
!
!
!
1
Dims
---1
Sizes
----4
Record
Variance
--------
Dimension
Variances
---------
T
T
VAR_PADVALUE: 255
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"UNITS"
"CATDESC"
"VALIDMIN"
"VALIDMAX"
"FORMAT"
Data
Type
---CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_UINT1
CDF_UINT1
CDF_CHAR
Value
----{
{
{
{
{
{
{
"Instrument Status" }
"Status" }
" " }
"ASPOC Instrument Status, 1s resolution" }
0 }
254 }
"I3" }
2
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MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
"FILLVAL"
CDF_UINT1
"VAR_TYPE"
CDF_CHAR
"SCALETYP"
CDF_CHAR
"DEPEND_0"
CDF_CHAR
"DISPLAY_TYPE"
CDF_CHAR
"DICT_KEY"
CDF_CHAR
"Frame"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
"Sig_digits"
CDF_CHAR
"SC_id"
CDF_CHAR
"DEPEND_1"
CDF_CHAR
"LABL_PTR_1"
CDF_CHAR
{
{
{
{
255 }
"data" }
"linear" }
"Epoch" }
{ "time_series" }
{ "flag>status" }
{ "scalar>na" }
{
{
{
{
{
" > " }
"3" }
"2" }
"mms2_aspoc_lbl" }
"mms2_aspoc_lbl" } .
! Variable
! Name
! --------
Data
Type
----
"mms2_aspoc_lbl"
!
!
!
!
!
Number
Elements
--------
CDF_CHAR
Dims
----
13
Sizes
----1
Record
Variance
--------
4
Dimension
Variances
---------
F
T
VAR_PADVALUE: " "
! Attribute
! Name
! -------"FIELDNAM"
"LABLAXIS"
"CATDESC"
"FORMAT"
"VAR_TYPE"
Data
Type
----
Value
-----
CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
CDF_CHAR
{
{
{
{
{
"Status Labels" }
"lbl_status" }
"Labels for Instrument Status" }
"A14" }
"metadata" } .
! NRV values follow...
[1]
[2]
[3]
[4]
=
=
=
=
{
{
{
{
"Data Quality "
"Unit 1 Mode
"
"Unit 2 Mode
"
"On/Off Status"
! Variable
! Name
! --------
Data
Type
----
}
}
}
}
Number
Elements
--------
Dims
----
Sizes
-----
Record
Variance
--------
Dimension
Variances
---------
"mms2_aspoc_var"
CDF_REAL8
!
!
!
!
!
1
0
F
! Attribute
! Name
! --------
Data
Type
----
"FIELDNAM"
CDF_CHAR
"LABLAXIS"
CDF_CHAR
"UNITS"
CDF_CHAR
"CATDESC"
CDF_CHAR
"VALIDMIN"
CDF_REAL8
"VALIDMAX"
CDF_REAL8
"FORMAT"
CDF_CHAR
"VAR_TYPE"
CDF_CHAR
"SI_CONVERSION"
CDF_CHAR
Value
----{
{
{
{
{
{
{
{
"Half Interval" }
"Half_int" }
"ns" }
0.0 }
1.275e+10 }
"F13.1" }
"su pport_data" }
{ "1.0e-9>s" } .
2
0
49/50
Doc. Title
Issue
Doc. Ref
MMS-ASP-IWF-TN-0042
Revision
Date
Februray 25, 2016
Page
[] = 5.0e+08
#end
Table 3: L2 Data CDF Skeleton File
2
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MMS ASPOC Science Data Products Guide

Transcription

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