A-train (satellite constellation)
From Wikipedia, the free encyclopedia
The orbit, at an inclination of 98.14°, crosses the equator each day at around 1:30 pm solar time, giving the constellation its name; the "A" stands for "afternoon;" and crosses the equator again on the night side of the Earth, at around 1:30 am.
- GCOM-W1 (SHIZUKU), lead spacecraft in formation, launched by JAXA on May 18, 2012
- Aqua, runs 4 minutes behind GCOM-W1, launched by NASA on May 4, 2002
- CloudSat, a cooperative effort between NASA and the Canadian Space Agency, runs 2 minutes and 30 seconds behind Aqua, launched with CALIPSO on April 28, 2006
- CALIPSO, a joint effort of CNES and NASA, follows CloudSat by no more than 15 seconds, launched on April 28, 2006
- Aura, a multi-national satellite, lags Aqua by 15 minutes, crossing the equator 8 minutes behind due to different orbital track to allow for synergy with Aqua, launched by NASA on July 15, 2004
- PARASOL (Polarization and Anisotropy of Reflectances for Atmospheric Sciences coupled with Observations from a Lidar'), launched by CNES on December 18, 2004; moved to other (lower) orbit on 2 December 2009
- OCO, destroyed by a launch vehicle failure on February 24, 2009, and would have preceded Aqua by 15 minutes
- Glory, failed during launch on a Taurus XL rocket on March 4, 2011, and would have flown between CALIPSO and Aura
- «A-train Symposium October 2007: Constellation keeps its promises», CNESMAG, January 2008
- NASA, Introducing the A-Train, 10.26.10 (accessed April 30 2012)
- "Individual A-Train Missions". June 5, 2012. Retrieved 2013-11-15.
- PARASOL page (accessed 30 April 2012)
- CNES News on Calipso
- OCO homepage
- Media Briefing Scheduled To Discuss Orbiting Carbon Observatory Mission
- Glory homepage
- NASA A-Train Portal
- NASA satellite program impacted
- NASA Program Page
- Orbital Sciences Program Page
- L'Ecuyer, T.S.; Jiang, J.H. (2010). "Touring the atmosphere aboard the A-Train". Physics Today 63 (7): 36–41.