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Mars 2020 Terrain Relative Navigation CTX DTM Mosaic

August 6, 2020

The Mars 2020 rover will explore Jezero crater, Mars to investigate an ancient delta for evidence of past microbial life and to better understand the geologic history of the region. The landing system onboard Mars 2020 will use technology developed at the Jet Propulsion Laboratory (JPL) called Terrain Relative Navigation (TRN), which will enable the spacecraft to autonomously avoid hazards (e.g., rock fields, crater rims) that exceed the safety requirements of the landing system. This capability allows small-scale hazards to be present in the landing ellipse, providing greater flexibility in selecting a landing location. In support of TRN, the USGS Astrogeology Science Center has generated and delivered the Lander Vision System (LVS) map generated from three Context Camera (CTX) orthorectified images that will be onboard the spacecraft and will be the "truth" dataset that TRN will use to orient itself relative to the surface during Entry, Decent, and Landing.

Citation Information

Publication Year 2020
Title Mars 2020 Terrain Relative Navigation CTX DTM Mosaic
DOI 10.5066/P906QQT8
Authors Robin L Fergason, Donna M Galuszka, Trent M Hare, David P Mayer, Bonnie L Redding
Product Type Data Release
Record Source USGS Digital Object Identifier Catalog
USGS Organization Astrogeology Science Center