NII Micro Priborov ISEM Infrared Spectrometer for Exo

NII Micro. Priborov ISEM (Infrared Spectrometer for Exo. Mars) O. Korablev (PI), Y. Dobrolenskiy (IM) and the ISEM Team IKI - Space Research Institute, Moscow Vernadsky Institute of Geochemistry and Analytical Chemistry, Moscow NII Micro. Priborov Guskova - Zelenograd

Science objectives of ISEM Search and study of OH/H 2 O-bearing minerals Geological investigation and study a composition of Martian surface materials (minerals and rocks) in the thin uppermost layer Identification and mapping of the distribution of all kind of aqueous alteration products on landing site Real-time assessment of surface composition in selected areas, in support of identifying and selection of the most promising drilling sites Studies of variations of the atmospheric dust properties and of the atmospheric gaseous composition (hampered by limited number of observation cycles)

The method N. Evdokimova, IKI

Detection limits, contamination by dust, organics (!) More cases discussed in the ISEM Astrobiology paper E Cloutis, Winnipeg

Instrument accommodation. Optical box ISEM optical block Spectral range 1. 1 -3. 4 µm FOV 1° HRC: high-resolution camera FOV 5°

Observation scenario Current scenario: one spectrum acquired together with each of 8 HRC images every 2 sols as per Reference Surface Mission, in all 16 spectra per Measurement Cycle.

ISEM main parameters Optical Box (OB) ISEM Electronic Box (EB) ISEM Spectral range 1. 15 -3. 3 µm Field of view 1. 3° Optical point detector Judson Teledyne J 12 TE 3 -66 D-R 01 M, three stage thermoelectrically cooled Ø 1 mm Spectral resolution 25 cm-1 or better Power consumption 11. 5 W ave (14 W peak; 9 W standby) Operating temperatures – 45°…+30 С (OB); – 40°…+50 С (EB) Storage temperatures – 130°…+60 С (OB); – 60°…+60 С (EB) (– 130°C confirmed) Output interface RS-422 Overall dimension 80× 167× 96 mm (optical box with MLI) 92× 116× 55 mm (electronic box) Mass breakdown 1. 740 kg overall 0. 690 kg optical box 0. 014 kg calibration target (ISEM share) 0. 560 kg electronic box 0. 476 kg harness estimation (TAS-I data)

ISEM Implementation OB: 3 D model Blend AOTF Block diagram Entrance optics Detector Optical scheme Polarizers AOTF Entrance optics Detector Measurement cycle

ISEM current status (2017 -2018 progress) ISEM EQM 1 and EQM 2 are manufactured EQM 1 passed the acceptance test at IKI; delivered to ESA and integrated at the Rover GTM EQM 2 has successfully undergone qualification tests at IKI, including thermo-cycling down to – 130°C ISEM FM: Assembling in progress – delivery in May 2018 ISEM SWIS updated to level 2

ISEM EQMs EQM 1 EQM 2

EQM 2 Qualification tests Vibration Shock TV EMC

Testing ISEM EQM 2 in the lab and the spectra obtained

Publications Papers O. Korablev, A. Ivanov, A. Fedorova et al. “Development of a mast or robotic arm-mounted infrared AOTF spectrometer for surface Moon and Mars probes”, Proc. of SPIE, Vol. 9608, p. 960807 -1 (2015). O. Korablev, Y. Dobrolensky, N. Evdokimovaet al. “Infrared Spectrometer for Exo. Mars: A Mast-Mounted Instrument for the Rover”, Astrobiology, 17: 6 -7, 542 (2017). ISEM and Micr. Omega are also cited in Korablev et al. “Acousto-optic tunable filter spectrometers in space missions”, Applied Optics, 57: 10, C 103 (2018) Conferences 13 th School on Acousto-Optics and Applications. Moscow, Russia, 2017 European Planetary Science Congress 2017 (EPSC-2017). Riga, Latvia, 2017