Thermal Operability Improvements for the Mars 2020 Rover Surface Mission

Date

2018-07-08

Journal Title

Journal ISSN

Volume Title

Publisher

48th International Conference on Environmental Systems

Abstract

The Mars 2020 Rover is scheduled to land on Mars on February 18, 2021. One of the primary mission objectives for the Mars 2020 Rover is to perform in-situ science and collect a set of Martian regolith samples for possible future return to Earth. In order to meet mission requirements, 20 samples must be collected, assessed, and sealed during the prime mission (1.5 Martian years, approximately 1000 Sols). This requires that the Mars 2020 Rover operate in a much more efficient and autonomous manner than its predecessor, the Mars Science Laboratory (MSL) Rover, Curiosity. The thermal designs of both Curiosity and the Mars 2020 Rover utilize warmup heaters to bring the actuators and cameras, located on the outside of the vehicle, up to their operating temperatures prior to use. These heaters consume energy during the mission. The Rover energy balance, between energy production and consumption, must be maintained in order to keep the mission moving safely forward. Increased efficiency in the way this warmup heater energy is allocated and used in the Mars 2020 Rover operations plan will result in more energy available for science and engineering activities. This paper discusses the improvements that were made in both hardware and software to improve the way the Mars 2020 Rover will operate thermally on Mars.

Description

Keith Novak, NASA, Jet Propulsion Laboratory, USA
Matthew Redmond, NASA, Jet Propulsion Laboratory, USA
Jason Kempenaar, NASA, Jet Propulsion Laboratory, USA
Edgardo Farias, NASA, Jet Propulsion Laboratory, USA
Kaustabh Singh, NASA, Jet Propulsion Laboratory, USA
Chern-Jiin Lee, Applied Sciences Laboratory, Inc., USA
ICES102: Thermal Control for Planetary and Small Body Surface Missions
The 48th International Conference on Environmental Systems was held in Albuquerque, New Mexico, USA on 08 July 2018 through 12 July 2018.

Keywords

Mars 2020, Rover, Operability, Thermal

Citation