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Table 2 MIRS performance requirements

From: MIRS: an imaging spectrometer for the MMX mission

Requirement ID

Requirement

MIRS-PE-001

Spectral range: 0.9–3.6 µm

MIRS-PE-002

Spectral resolution (sampled) < 20 (+ 10%) nm

MIRS-PE-003

Spectral sampling: 10 (+ 10%) nm

MIRS-PE-004

IFOV: ≤ 0.41 mrad, goal: 0.35 mrad

MIRS-PE-005

FOV: ≥  ± 1.65°

MIRS-PE-006

SNR: ≥ 100 in [2.7—3.2] µm in less than 2 s integration, for 30° solar incidence, at 1.5 au, with Lambertian albedo at 30° phase angle

MIRS-PE-007

Modulation transfer function shall be higher than 8% at Nyquist frequency in the spatial direction

MIRS-PE-008

MIRS boresight orientation with respect to MMX spacecraft shall be known with an accuracy better than ± 1.4 mrad

MIRS-PE-009

MIRS boresight relative orientation between successive acquisitions of an observation sequence shall be known with an accuracy better than ± 0.17 mrad

Note: an observation sequence is:

 A complete observation run when the scanner is not used (e.g., Phobos global mapping)

 The observation phase corresponding to a scan when the scanner is continuously rotating during images acquisition (e.g., Mars, Phobos landing)

MIRS-PE-010

Spectral registration: knowledge better than 5 nm

MIRS-PE-011

Absolute radiometric calibration: better than 10%

MIRS-PE-012

Relative radiometric calibration: better than 1%

MIRS-PE-013

Distortion (spatial): knowledge better than 0.5 pixel. Goal 0.2 pixel