Sensors and Systems
Breaking News
Cyient – BlueBird Joint Venture Launches its New Unmanned Aerial System, the Versatile WanderB VTOL at Aero India 2019
Rating12345BANGALORE, India and HYDERABAD, India – Cyient Solutions & Systems...
Esri Publishes Switching to ArcGIS Pro from ArcMap
Rating12345REDLANDS, Calif.- Esri, the global leader in location intelligence,...
GEO Jobe Continues Growth, Welcomes Timothy Michael as Sr. Solution Engineer
Rating12345We’re pleased to have continued, sustained growth here at...
  • Rating12345

In February 2018, facing a mechanical challenge, CloudSat (pictured in background) had to exit the A-Train of Earth-orbiting satellites and move to a lower orbit. Following an exit maneuver of its own in September 2018, CALIPSO (foreground) joined CloudSat, forming what NASA scientists are calling the C-Train. (Credit: NASA)

CloudSat and CALIPSO, designed to complement each other in the 1990s, were launched together on the same rocket in 2006. Then they spent more than 10 years orbiting Earth in formation with a coterie of other satellites in what’s known as the A-Train (afternoon constellation).

Flying together enables the A Train satellites to gather diverse measurements of the Earth below at nearly the same time as they circle the globe pole-to-pole. The nearly simultaneous observations allow scientists to build a more sophisticated understanding of the Earth system than would be possible if the measurements were separated. Other members of the A Train include NASA’s Aqua, Orbiting Carbon Observatory-2 and Aura spacecraft, along with the Japan Aerospace Exploration Agency’s Global Change Observation Mission – Water (GCOM-W1) satellite.

In February 2018, facing a mechanical challenge, CloudSat had to exit the A-Train, moving to a lower orbit—leaving CALIPSO behind and the future of their partnership uncertain. But following a recent exit maneuver of its own in September 2018, CALIPSO rejoined CloudSat. NASA scientists are referring to the new orbit, just a few miles below the A-train, as the C-Train—C being the first letter of each satellite.

Leave a Reply

Your email address will not be published. Required fields are marked *