Thermal Performance of the Perseverance Rover During Mars Surface Operations

Date

2023-07-16

Journal Title

Journal ISSN

Volume Title

Publisher

2023 International Conference on Environmental Systems

Abstract

On July 30, 2020, NASA launched the Perseverance rover as part of the Mars 2020 (M2020) mission. On February 18, 2021, the rover landed on the surface of Mars in Jezero Crater at a latitude of 18.5°N. As of the writing of this paper, the rover has completed over 790 sols of surface operations, more than one full Martian year. Landing occurred during the Martian spring in the Northern Hemisphere (Ls=5 deg), and the rover has since operated through the summer, fall, and winter seasons. While the rover was originally designed to support a surface mission of 1003 sols, Perseverance has been integrated as part of the planned Mars Sample Return (MSR) Campaign to bring samples back from the surface of Mars to Earth for the first time. Understanding the thermal performance of the rover is essential to ensuring the longevity of Perseverance to perform this mission. This paper discusses the thermal performance of the rover from landing to present, including predicted versus actual performance, nominal operations, incidents and anomalies, and long-term trending data that will be used to improve energy usage for activities requiring thermal support in the future.

Description

Bailey Cassler, Jet Propulsion Laboratory, California Institute of Technology, USA
Emma Nelson, Jet Propulsion Laboratory, California Institute of Technology, USA
ICES102: Thermal Control for Planetary and Small Body Surface Missions
The 52nd International Conference on Environmental Systems was held in Calgary, Canada, on 16 July 2023 through 20 July 2023.

Keywords

Thermal, Mars, Rover, Perseverance

Citation