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IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingThe Tianwen-1 lander exhaust induced obvious disturbances to the Martian soil. This study examines the extent and nature of the disturbed area caused by Tianwen-1 landing rocket exhaust by utilizing high-resolution Mars reconnaissance orbiter high ...
Chao Wang +7 more
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The Mars orbiter magnetometer of Tianwen-1: in-flight performance and first science results [PDF]
Earth and Planetary Physics, 2023 The Mars Orbiter MAGnetometer (MOMAG) is a scientific instrument onboard the orbiter of China’s first mission for Mars — Tianwen-1. Since November 13, 2021, it has been recording magnetic field data from the solar wind to the magnetic pile-up region ...
YuMing Wang +19 more
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Enhancing Mars Gravity Field Solutions with China’s Tianwen-1 Tracking Data
The Astrophysical JournalAbstract The Tianwen-1 (TW1) mission, which successfully entered Mars's orbit in 2021, provides a valuable data set for enhancing the understanding of Mars’s gravity field. The highly elliptical near-polar orbit of the TW1 orbiter offers unique sensitivity to long-wavelength gravity signals, complementing the contributions of low ...
Shangbiao Sun +5 more
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Joint Observation of a Series of Magnetic Holes by Tianwen-1 and MAVEN on Mars
The Astrophysical JournalMagnetic holes (MHs) are transient magnetic structures responsible for energy conversion in space plasma. Using single-spacecraft measurements from Mars Atmosphere and Volatile EvolutioN (MAVEN), the existence of MHs on Mars has been confirmed.
T. Y. Zhou +7 more
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Engineering, 2023 Once China’s Tianwen-1 Mars probe arrived in a Mars orbit after a seven-month flight in the deep cold space environment, it would be urgently necessary to monitor its state and the surrounding environment.
Chengjun Zeng +16 more
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Pixel-level Terrain Processing of the Martian Surface from Moderate Resolution Images of Tianwen-1
The Astronomical JournalThe moderate-resolution camera (MoRIC) of the Tianwen-1 orbiter, China’s first Mars exploration mission, is a frame-imaging scheme color camera. However, generating a precise digital elevation model (DEM) from these images faces challenges due to the ...
Dingxin Liu +5 more
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Combined application of block and modulation factors to reduce the volume of the low dose area in helical tomotherapy plans for lung cancer. [PDF]
J Appl Clin Med PhysAbstract Background The helical tomotherapy (HT) system can expose more normal lung tissue to low radiation doses, resulting in extensive low‐dose distribution in both lungs which may induce radiation pneumonitis (RP). Purpose This study aims to optimize dosimetric parameters and identify a clinically feasible treatment plan by analyzing the impact of ...
Zhu S +8 more
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Geophysical Research LettersThe Martian magnetotail is largely controlled by the solar wind (SW) and is modulated by variations in the upstream drivers. However, due to the limitations of single‐spacecraft observations, the effects of SW variations on the Martian magnetotail have ...
Z. Z. Guo +7 more
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International Journal of Mining Science and TechnologyAfter landing in the Utopia Planitia, Tianwen-1 formed the deepest landing crater on Mars, approximately 40 cm deep, exposing precious information about the mechanical properties of Martian soil.
Xinshuo Chen +9 more
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Adaptive entry guidance for the Tianwen-1 mission [PDF]
Astrodynamics, 2022 AbstractTo meet the requirements of the Tianwen-1 mission, adaptive entry guidance for entry vehicles, with low lift-to-drag ratios, limited control authority, and large initial state bias, was presented. Typically, the entry guidance law is divided into four distinct phases: trim angle-of-attack phase, range control phase, heading alignment phase, and
Minwen Guo +4 more
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