Journal
SPACE SCIENCE REVIEWS
Volume 217, Issue 2, Pages -Publisher
SPRINGER
DOI: 10.1007/s11214-021-00804-z
Keywords
Mars Mineralogical Spectrometer; MMS; Mars; Orbiter; Tianwen-1
Categories
Funding
- China's first Mars exploration program
- China National Space Administration (CNSA)
- National Natural Science Foundation of China (NSFC) [21105109, 61605231, U1931211]
- Youth Innovation Promotion Association CAS [2016018, 2017286]
- Program of Shanghai Academic/Technology Research Leader [19XD1424100]
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The Mars Mineralogical Spectrometer (MMS) is a hyperspectral imager on China's Tianwen-1 Mars orbiter, used to analyze the compositions and distributions of minerals on the Martian surface for characterizing its evolution.
The Mars Mineralogical Spectrometer (MMS) is a hyperspectral imager onboard the Mars orbiter of Tianwen-1, China's first Mars exploration mission. MMS consists of 4 subassemblies: an Optical Sensor Unit (OSU), an Electronics Unit (EU), a Calibration Unit (CU), and a Thermal Control Accessories (TCA). With a 0.5 mrad IFOV and a 416-sample cell array for nadir observation, MMS can map the spectral and spatial information of the Martian surface through push-broom scanning, and it can transmit scientific data by hyperspectral mode or multispectral imaging mode through spatial and spectral combination. MMS can perform multi-sample hyperspectral imaging at full spectral resolution (0.379-1.076 mu m with 2.73 nm/band, 1.033-3.425 mu m at 7.5 nm/band, both spectral ranges at 2.1 km/pixel at 265 km). For the wavelength region of interest, the multispectral mapping mode provides additional options, a subset of 72 bands that are binned to minimum pixel footprints of 265 m/pixel. The major objective of the MMS is to analyze the compositions and distributions of the minerals on Martian surface, in order to characterize its evolution.
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