The Observatorio Astronómico Nacional – San Pedro Márur Network

The Observatorio Astronómico Nacional – San Pedro Már;r Network Ba n d w i d t h Michael Richer Observatorio Astronómico Nacional-­‐San Pedro Már;r Ins;tuto de Astronomía -­‐ Ensenada Universidad Nacional Autónoma de México What/where is the OAN-­‐SPM? •  The observatory is basically a small village: –  4.5 hours from Ensenada –  20-­‐25 people –  food, water brought in –  generates its own power –  microwave internet link 11 October 2013 M. Richer -­‐-­‐ CICESE, Big Data Big Network 2 History •  In the early 1990s, a satellite link was installed. •  The bandwidth was 64 kbits/second. •  Telephone service was half duplex. •  Later, the bandwidth was doubled with full duplex telephone service. 11 October 2013 M. Richer -­‐-­‐ CICESE, Big Data Big Network 3 Today •  In early 2003, a microwave link was installed by TelNor. •  The bandwidth is 2 Mbits/second. •  VOIP telephone service was installed. unknown photographer, provided by Urania Ceseña 11 October 2013 M. Richer -­‐-­‐ CICESE, Big Data Big Network 4 Today •  Light use: –  telephone service –  general use •  Intensive use: –  data transmission •  Only the RATIR instrument produces a large data volume. The condor’s view… •  RATIR is a collabora;on unknown photographer, between UNAM, UC, ASU, provided by Urania Ceseña and NASA/Goddard. 11 October 2013 M. Richer -­‐-­‐ CICESE, Big Data Big Network 5 Today, RATIR •  The RATIR instrument: –  4 channel imaging (2 in visible; 2 in the infrared) –  robo;c telescope (1.5m telescope) –  data volume: 22 Gbytes/night –  the data are sent to Ensenada: • impossible without compression •  with compression, 100% of the bandwidth for 10 hours/day •  With the current microwave link, we cannot confront a substan;ally larger data volume. •  An upgrade to 10 Mbits/second is planned within the next few months. 11 October 2013 M. Richer -­‐-­‐ CICESE, Big Data Big Network 6 Future (star;ng now) •  TAOS II (under construc;on; ASIAA/Taiwan, Harvard/CfA) –  3 robo;c telescopes, advanced cameras (20 Hz frame readout) –  4 Tbytes/night – a fibre op;c link is needed •  Boötes-­‐5 (2014; Ins;tuto de Astroksica de Andalucía) –  robo;c telescope with wide-­‐field camera –  35 Gbytes/night – feasible with upgraded microwave link and compression •  Flash (2015; French partners) –  robo;c telescope, similar instrumenta;on as RATIR –  25 Gbytes/night – feasible with upgraded microwave link and compression? •  SPMT (2014+?; INAOE and American partners): –  6.5m telescope, advanced instrumenta;on –  30-­‐50 Gbytes/night, first genera;on instruments –  probably requires a fibre op;c link (SASIR will, > 1Gbit/second) 11 October 2013 M. Richer -­‐-­‐ CICESE, Big Data Big Network 7 Future •  Cherenkov Telescope Array (2015+?; Mexican, European, and American partners) –  array of 25 Cherenkov telescopes –  10 Tbytes/observa;on (¡!), only reduced data will be transmired, –  requires a fibre op;c link. •  With CFE, we are planning to build an electricity line to connect the OAN-­‐SPM to the na;onal electricity grid. •  This connec;on will also include a fibre op;c link to Ensenada. •  For now, the bandwidth specifica;on is 100 Mbits/second, but can be upgraded with signal repeaters (TAOS-­‐II will need 410 Mbits/second). 11 October 2013 M. Richer -­‐-­‐ CICESE, Big Data Big Network 8 Ensenada’s Connec;vity •  CICESE and UNAM share a 10 Gbits/second link from Ensenada to Tijuana/San Diego for na;onal/
interna;onal traffic. •  This link will be important for the instruments that will come online at the OAN-­‐SPM in the next few years. •  This link is also important now for the compu;ng needs of the theore;cal astronomers in Ensenada, whose connec;vity to compu;ng resources in central Mexico have been limited. 11 October 2013 M. Richer -­‐-­‐ CICESE, Big Data Big Network 9 11 October 2013 M. Richer -­‐-­‐ CICESE, Big Data Big Network 10 11 October 2013 M. Richer -­‐-­‐ CICESE, Big Data Big Network 11