Designing iterations of the Venus Emissivity Mapper Emulator: making a space instrument suitable for field campaigns

Solmaz Adeli; Juniper Gillespie; Stephen P. Garland; Mario D'Amore; Dennis Wendler; Giulia Alemanno; Alessandro Maturilli; Frank Trauthan; Christian Althaus; Mickael Baque; Enrica Bonato; Vikram Unnithan; Jörn Helbert; Suezanne Smrekar

doi:10.1117/12.2677369

20 October 2023 Designing iterations of the Venus Emissivity Mapper Emulator: making a space instrument suitable for field campaigns

Solmaz Adeli, Juniper Gillespie, Stephen P. Garland, Mario D'Amore, Dennis Wendler, Giulia Alemanno, Alessandro Maturilli, Frank Trauthan, Christian Althaus, Mickael Baque, Enrica Bonato, Vikram Unnithan, Jörn Helbert, Suezanne Smrekar

Author Affiliations +

Proceedings Volume 12686, Infrared Remote Sensing and Instrumentation XXXI; 126860J (2023) https://doi.org/10.1117/12.2677369
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

One of the main objectives of the NASA's VERITAS and the ESA's EnVision missions is to characterize the composition and origin of the major geologic terrains on Venus. Both missions carry the Venus Emissivity Mapper (VEM) – a multispectral imager - which will be able to observe the surface of Venus through five atmospheric windows with six bands, around the 1μm spectral range. This will enable the spectral characterization of the Venusian surface, as well as deduce the type of lava and likely alteration processes, providing new insights into the evolution of Venus. To improve our knowledge of the mineralogical information obtained from the 1μm spectral range, we are developing a series of "VEM emulator" (aka VEMulator). The first one was based on a commercial Raspberry PI HQ 12MP camera, containing the Sony IMX477 sensor, with a 35mm lens. Four filters with wavelengths of 860, 910, 990, 1100 nm could be attached in front of the lens similar to four of the six VEM mineralogy spectral bands. This instrument was deployed in summer 2022 on the Vulcano island in southern Italy as Venus analog site. Vulcano rocks display a diverse compositional variation from basaltic to rhyolitic, which makes this site an attractive analog to Venus. Currently, a new version of the VEMulator is being developed using the SCD Cardinal 1280 InGaAs detector – similar to the detector used in the VEM flight model. This VEMulator 2.0 will be used in Iceland, in 2023, for a VERITAS field campaign.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Solmaz Adeli, Juniper Gillespie, Stephen P. Garland, Mario D'Amore, Dennis Wendler, Giulia Alemanno, Alessandro Maturilli, Frank Trauthan, Christian Althaus, Mickael Baque, Enrica Bonato, Vikram Unnithan, Jörn Helbert, and Suezanne Smrekar "Designing iterations of the Venus Emissivity Mapper Emulator: making a space instrument suitable for field campaigns", Proc. SPIE 12686, Infrared Remote Sensing and Instrumentation XXXI, 126860J (20 October 2023); https://doi.org/10.1117/12.2677369

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