ExoMars Mission: Trace Gas Orbiter crosses Phobos' Orbit

ExoMars Trace Gas Orbiter
ExoMars Trace Gas Orbiter
Image Credit: ESA/ATG medialab

News from Nov 17, 2017

While aerobraking, the Trace Gas Orbiter (TGO) crossed the orbit of the 20 km diameter Mars moon Phobos twice on 16 November 2017. The crossings took place while Phobos was positioned at the other side of the orbit; the first at 3:30 pm and the second at 9:00 pm CET. As part of the ExoMars mission in cooperation between the European Space Agency (ESA) and the Russian Space Agency Roscosmos, the orbiter’s task is to investigate processes taking place in Mars’ atmosphere. Since October 2016, the TGO follows a highly elliptical orbit around Mars and uses the aerobraking effect to reach its final 400 km circular orbit in March 2018.

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