Table 2 MMS Specifications

From: Mars Mineralogical Spectrometer (MMS) on the Tianwen-1 Mission

Parameters Measurement
Spectral range 0.379–1.076 μm with 2.73 nm/band @ V-NIR
1.033–3.425 μm with 7.5 nm/band @ N-MIR
Spectral resolution 2.96–3.90 nm @ V-NIR
8.36–10.91 nm @ N-MIR
Instantaneous field of view 0.50 mrad
True field of view 12 for nadir observation
Modular transfer function ≥0.21 @ 19.2 lp/mm in V-NIR channel and 0.21 @ 20 lp/mm in N-MIR channel
Quantisation 12 bits
Signal-to-noise ratio >45 @ V-NIR (405 @ 0.75 μm), >33 @ N-MIR (253 @ 2.3 μm), at 1.52 AU, phase angle of 45, and albedo of 15%
Power consumption Peak 44.9 W and average 29.1 W @ optical temperature of \(-15~^{\circ}\text{C}\)
Mass Body with multilayer insulation: 7.26 kg and thermal control accessories: 0.83 kg