TY  - JOUR
A1  - Cozzoni, Barbara
A1  - Maibaum, Michael
A1  - Hamm, Maximilian
T1  - Thermal analysis and constraints for the MASCOT landing site selection on the asteroid Ryugu
T2  - Planetary and space science
N2  - In June 2018, after 4 years of cruise, the Japanese space probe Hayabusa2 [1-Watanabe S. et al.: Hayabusa2 Mission Overview. (2017)] reached the Near-Earth Asteroid (162173) Ryugu. Hayabusa2 carried a small Lander named MASCOT (Mobile Asteroid Surface Scout) [2-Ho T. M. et al.: MASCOT-The Mobile Asteroid Surface Scout onboard the Hayabusa2 mission. (2017)], jointly developed by the German Aerospace Center (DLR) and the French Space Agency (CNES), to investigate Ryugu's surface structure, composition and physical properties including its thermal behaviour and magnetization in-situ. The Microgravity User Support Centre (DLR-MUSC) in Cologne was in charge of providing all thermal conditions and constraints necessary for the selection of the final landing site and for the final operations of the Lander MASCOT on the surface of the asteroid Ryugu. This article provides a comprehensive assessment of these thermal conditions and constraints, based on predictions performed with the Thermal Mathematical Model (TMM) of MASCOT using different asteroid surface thermal models, ephemeris data for approach as well as descent and hopping trajectories, the related operation sequences and scenarios and the possible environmental conditions driven by the Hayabusa2 spacecraft. A comparison with the real telemetry data confirms the analysis and provides further information about the asteroid characteristics.
KW  - MASCOT
KW  - Thermal mathematical model
KW  - Landing site selection
KW  - Small
KW  - spacecraft operations
Y1  - 2021
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/61579
SN  - 0032-0633
SN  - 1873-5088
VL  - 205
PB  - Elsevier
CY  - Oxford
ER  -