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. 2023 Dec 29;11(2):nwad329. doi: 10.1093/nsr/nwad329

Table 2.

The main technical specifications of scientific payloads on the orbiter.

Scientific payload Specifications
HRSMC Resolution and width:
Panchromatic resolution is better than 0.5 m, width ≥ 18 km@orbit altitude 100 km
Panchromatic resolution is better than 0.075 m, width ≥ 0.9 km@orbit altitude 15 km
S/N:
≥50 dB (solar altitude of 80°, Albedo of 0.25, orbit altitude of 100 km);
≥35 dB (solar altitude of 0.6°, Albedo of 0.09, orbit altitude of 80 km);
≥34 dB (solar altitude of 1.5°, Albedo of 0.1, orbit altitude of 15 km);
≥27 dB (solar altitude of 0.6°, Albedo of 0.09, orbit altitude of 15 km);
Base-height ratio: ≥0.5
Spectrum: 0.45 μm –0.90 μm
MTF: ≥0.15@Nyquist
Distortion stability: ≤0.3 pixel (half year)
MSAR Resolution: better than 1 m
Width: 5 km–20 km
Polarization: multi-polarization
FOV: 15°–45°
WISMIA Spectral range: 0.45 μm–10.0 μm
Spectral resolution: ≤10 nm@0.45–3.0 μm, ≤200 nm@3.0–10.0 μm
Spatial resolution: ≤0.2 mrad@0.45–3.0 μm, ≤0.3 mrad@3.0–10.0 μm
FOV: ≥3.8°
MTF > 0.1
LNGS Neutron:
Thermal neutron energy: 0–0.4 eV
Epithermal neutron energy: 0.4 eV–700 keV
Fast neutron energy: 700 keV–5 MeV
Gamma spectrometer: 0.3–9 MeV
LOM Measuring range: ±2000 nT
Stability: ≤0.01 nT/°C
Resolution: better than 0.01 nT