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  Title:   The Afternoon Constellation - A-Train  
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  Coverage:   November 17, 2016 - November 17, 2016  
  Description:   The Afternoon Train, or 'A-Train', for short, is a constellation of satellites that travel one behind the other, along the same track, as they orbit Earth. Four satellites currently fly in the A-Train - Aqua, CloudSat, CALIPSO, and Aura. GCOM-W1 and OCO-2 are scheduled to join the configuration in 2012 and 2013, respectively. Glory was lost in a launch vehicle failure on March 4, 2011. The 'A-Train' satellites cross the equator within a few minutes of each other at around 1:30 p.m. local time. By combining different sets of nearly simultaneous observations from these satellites, scientists are able to study important parameters related to climate change.