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The radiometric environment for Mars limb observations by the Mars Sample Return Earth Return Orbiter

Montmessin, Franck; Titov, Dmitri; Wolff, Michael J. +17 more

After launching from the martian surface via the Mars Ascent Vehicle (MAV), the MAV and the Orbiting Sample (OS) capsule containing the samples collected on Mars by the Perseverance rover are to be identified by the Narrow Angle Camera (NAC) on the Earth Return Orbiter (ERO) spacecraft in order to determine the exact orbit of the capsule before re…

A new approach to retrieve total electron content based on dual-band echoes of MARSIS radar sounder

Wang, Longxiang; Ye, Hongxia

This paper proposes a new dual-band difference (DBD) method to retrieve total electron content (TEC) in Martian ionosphere with the dual-band echoes of the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS). It establishes the relationship between the group delay difference of two-band echoes and the plasmas frequency. Then the Ma…