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Technology Demonstration Missions

Terrain Relative Navigation (TRN)

Active Technology Project

Project Introduction

TRN is a key part of the MARS 2020 Guidance, Navigation, and Control (GNC) subsystem designed to provide the capability to avoid large scale landing hazards during the entry, descent and landing (EDL) phase of the mission. TRN uses images gathered during descent to identify surface features and match them to orbital images to identify where the vehicle is and avoid pre-identified landing hazards. Additionally the technology will allow the vehicle to identify key science targets and land near those targets thus significantly reducing required surface traverse after landing. More »

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Technology Maturity (TRL)

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