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First Results of Mars Express—ExoMars Trace Gas Orbiter Mutual Radio Occultation
Cardesín-Moinelo, Alejandro; Wilson, Colin; Witasse, Olivier +10 more
Spacecraft-to-spacecraft radio occultations experiments are being conducted at Mars between Mars Express (MEX) and Trace Gas Orbiter (TGO), the first ever extensive inter-spacecraft occultations at a planet other than Earth. Here we present results from the first 83 such occultations, conducted between 2 Nov 2020 and 5th of July 2023. Of these, 44…
ExoMars Schiaparelli Direct-to-Earth Observation using GMRT
Asmar, S. W.; De, K.; Gupta, Y. +3 more
During the ExoMars Schiaparelli separation event on 16 October 2016 and Entry, Descent, and Landing (EDL) events 3 days later, the Giant Metrewave Radio Telescope (GMRT) near Pune, India, was used to directly observe UHF transmissions from the Schiaparelli lander as they arrive at Earth. The Doppler shift of the carrier frequency was measured and …