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A Laboratory Study on End-Member Mixing for the Deconvolution of Spectra Measured from VEM on NASA VERITAS Mission

Maturilli, Alessandro and van Den Neucker, A. and Alemanno, Giulia and Helbert, Jörn and Dyar, M. D. (2023) A Laboratory Study on End-Member Mixing for the Deconvolution of Spectra Measured from VEM on NASA VERITAS Mission. 54th Lunar and Planetary Science Conference 2023, 2023-03-13 - 2023-03-17, The Woodlands, USA.

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Official URL: https://www.hou.usra.edu/meetings/lpsc2023/pdf/2120.pdf


In June 2021, NASA selected the VERITAS and DAVINCI missions under the Discovery program) and ESA selected the mission EnVision (under the Cosmic Vision plan) to study the planet Venus. All three missions will collect data to help scientists understanding how Venus geology has evolved over time, what geologic processes are still active on its surface, and if water was ever present. VERITAS is designed to gather global, high-resolution topography and imaging of Venus' surface and produce the first maps of global surface composition, thermal emissivity, and gravity fields. Onboard the spacecraft will be two scientific instruments, the Venus Emissivity Mapper (VEM) and Venus Interferometric Synthetic Aperture Radar (VISAR). VEM will map the Venus surface emissivity using six spectral bands in five atmospheric windows that see through the CO2-rich clouds. VEM also carries eight additional bands for calibration and detection of near-surface water vapor. The Planetary Spectroscopy Laboratory (PSL) is operated by the VEM PI-team. It is the only facility in the world capable of acquiring emissivity spectra of Venus analogs in vacuum at Venus surface temperatures (routinely 400°, 440°, and 480°C), and hemispherical reflectance (in vacuum at 25°C) in the VEM spectral range. We present here results on spectra of binary mixtures of end-members to improve our understanding of mixing properties at this wavelength and assist with interpretation of VEM data.

Item URL in elib:https://elib.dlr.de/196933/
Document Type:Conference or Workshop Item (Poster)
Title:A Laboratory Study on End-Member Mixing for the Deconvolution of Spectra Measured from VEM on NASA VERITAS Mission
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Maturilli, AlessandroUNSPECIFIEDhttps://orcid.org/0000-0003-4613-9799UNSPECIFIED
van Den Neucker, A.German Aerospace Center (DLR)UNSPECIFIEDUNSPECIFIED
Helbert, JörnUNSPECIFIEDhttps://orcid.org/0000-0001-5346-9505UNSPECIFIED
Dyar, M. D.Dept. of Astronomy, Mount Holyoke College, South Hadley, MA 01075UNSPECIFIEDUNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 2120
Series Name:LPI Contribution
Keywords:VERITAS, Labor, Spektroskopie
Event Title:54th Lunar and Planetary Science Conference 2023
Event Location:The Woodlands, USA
Event Type:international Conference
Event Start Date:13 March 2023
Event End Date:17 March 2023
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project EnVision - VEM, R - Project VERITAS - VEM
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Laboratories
Deposited By: Helbert, Dr.rer.nat. Jörn
Deposited On:01 Sep 2023 10:04
Last Modified:24 Apr 2024 20:57

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