Skip to main navigation Skip to search Skip to main content

Surface characteristics of the Zhurong Mars rover traverse at Utopia Planitia

  • L. Ding*
  • , R. Zhou
  • , T. Yu
  • , H. Gao*
  • , H. Yang*
  • , J. Li
  • , Y. Yuan
  • , C. Liu
  • , J. Wang
  • , Y. Y.S. Zhao
  • , Z. Wang
  • , Xiyu Wang
  • , G. Bao
  • , Z. Deng
  • , L. Huang
  • , N. Li
  • , X. Cui
  • , X. He
  • , Y. Jia
  • , B. Yuan
  • G. Liu, H. Zhang, R. Zhao, Z. Zhang, Z. Cheng, F. Wu, Q. Xu, H. Lu, L. Richter, Z. Liu, F. Niu, H. Qi, S. Li, W. Feng, C. Yang, B. Chen, Z. Dang, M. Zhang, L. Li, Xiaoxue Wang, Z. Huang, J. Zhang, H. Xing, G. Wang, L. Niu, P. Xu, W. Wan, K. Di
*Corresponding author for this work
  • Beijing Aerospace Flight Control Center
  • Harbin Institute of Technology
  • Key Laboratory of Science and Technology on Aerospace Flight Dynamics
  • CAS - Institute of Geochemistry
  • Chinese Academy of Sciences
  • University of Chinese Academy of Sciences
  • China Aerospace Science and Technology Corporation
  • Toronto Metropolitan University
  • Large Space Structures (LSS)
  • CAS - Aerospace Information Research Institute

Research output: Contribution to journalArticlepeer-review

Abstract

China’s Mars rover, Zhurong, touched down on Utopia Planitia in the northern lowlands of Mars (109.925° E, 25.066° N) in May 2021, and has been conducting in situ investigations of the landing area in conjunction with the Tianwen-1 orbiter. Here we present surface properties derived from the Zhurong rover’s traverse during the first 60 sols of rover operations. Our analysis of the rover’s position from locomotion data and camera imagery over that time shows that the rover traversed 450.9 m southwards over a flat surface with mild wheel slippage. Soil parameters determined by terramechanics, which observes wheel–terrain interactions, indicate that the topsoil has high bearing strength and cohesion. The soil’s equivalent stiffness is estimated to range from 1,390 to 5,872 kPa per mN, and the internal friction angle ranges from 21° to 34° under a cohesion of 1.5 to 6 kPa. Aeolian bedforms in the area are primarily transverse aeolian ridges, indicating northeastern local wind directions. Surface rocks imaged by the rover cameras show evidence of physical weathering processes, such as wind erosion, and potential chemical weathering processes. Joint investigations utilizing the scientific payloads of the rover and the orbiter can provide insights into local aeolian and aqueous history, and the habitability evolution of the northern lowlands on Mars.

Original languageEnglish
Pages (from-to)171-176
Number of pages6
JournalNature Geoscience
Volume15
Issue number3
DOIs
StatePublished - Mar 2022

Fingerprint

Dive into the research topics of 'Surface characteristics of the Zhurong Mars rover traverse at Utopia Planitia'. Together they form a unique fingerprint.

Cite this