Mars Orbiter magnetometer of China’s First Mars Mission Tianwen-1

Kai Liu; XinJun Hao; YiRen Li; TieLong Zhang; ZongHao Pan; ManMing Chen; XiaoWen Hu; Xin Li; ChengLong Shen; YuMing Wang

doi:10.26464/epp2020058

Earth and Planetary Physics (Jul 2020)

Mars Orbiter magnetometer of China’s First Mars Mission Tianwen-1

Kai Liu,
XinJun Hao,
YiRen Li,
TieLong Zhang,
ZongHao Pan,
ManMing Chen,
XiaoWen Hu,
Xin Li,
ChengLong Shen,
YuMing Wang

Affiliations

Kai Liu: Chinese Academy of Sciences Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
XinJun Hao: Chinese Academy of Sciences Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
YiRen Li: Chinese Academy of Sciences Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
TieLong Zhang: Chinese Academy of Sciences Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
ZongHao Pan: Chinese Academy of Sciences Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
ManMing Chen: Chinese Academy of Sciences Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
XiaoWen Hu: Chinese Academy of Sciences Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
Xin Li: Chinese Academy of Sciences Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
ChengLong Shen: Chinese Academy of Sciences Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
YuMing Wang: Chinese Academy of Sciences Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China

DOI: https://doi.org/10.26464/epp2020058
Journal volume & issue: Vol. 4, no. 4
pp. 384 – 389

Abstract

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As one of the seven scientific payloads on board the Tianwen-1 orbiter, the Mars Orbiter Magnetometer (MOMAG) will measure the magnetic fields of and surrounding Mars to study its space environment and the interaction with the solar wind. The instrument consists of two identical triaxial fluxgate magnetometer sensors, mounted on a 3.19 meter-long boom with a seperation of about 90 cm. The dual-magnetometers configuration will help eliminate the magnetic field interference generated by the spacecraft platform and payloads. The sensors are controlled by an electric box mounted inside the orbiter. Each magnetometer measures the ambient vector magnetic field over a wide dynamic range (to 10,000 nT per axis) with a resolution of 1.19 pT. Both magnetometers sample the ambient magnetic field at an intrinsic frequency of 128 Hz, but will operate in a model with alternating frequency between 1 and 32 Hz to meet telemetry allocations.

Published in Earth and Planetary Physics

ISSN: 2096-3955 (Print)
Publisher: Science Press
Country of publisher: China
LCC subjects: Science: Physics: Geophysics. Cosmic physics; Geography. Anthropology. Recreation: Environmental sciences
Website: http://www.eppcgs.org/

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