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The MASCOT Radiometer MARA for the Hayabusa 2 Mission

Grott, M. and Knollenberg, J. and Borgs, B. and Hänschke, F. and Kessler, E. and Helbert, J. and Maturilli, A. and Müller, N. (2016) The MASCOT Radiometer MARA for the Hayabusa 2 Mission. Space Science Reviews, 208, pp. 413-431. Springer. DOI: 10.1007/s11214-016-0272-1 ISSN 0038-6308

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Official URL: https://link.springer.com/article/10.1007/s11214-016-0272-1#aboutcontent


The MASCOT radiometer MARA is a multi-spectral instrument which measures net radiative flux in six wavelength bands. MARA uses thermopile sensors as sensing elements, and the net flux between the instrument and the surface in the 18∘ field of view is determined by evaluating the thermoelectric potential between the sensors’ absorbing surface and the thermopile’s cold-junction. MARA houses 4 bandpass channels in the spectral range of 5.5–7, 8–9.5, 9.5–11.5, and 13.5–15.5 μm, as well as one long-pass channel, which is sensitive in the >3 μm range. In addition, one channel is similar to that used by the Hayabusa 2 orbiter thermal mapper, which uses a wavelength range of 8–12 μm. The primary science objective of the MARA instrument it the determination of the target asteroid’s surface brightness temperature, from which surface thermal inertia can be derived. In addition, the spectral bandpass channels will be used to estimate the spectral slope of the surface in the thermal infrared wavelength range. The instrument has been calibrated using a cavity blackbody, and the temperature uncertainty is 1 K in the long pass channel for target temperatures of >173 K. Measurement uncertainty in the spectral bandpasses is 1 K for target temperatures above 273 K.

Item URL in elib:https://elib.dlr.de/114320/
Document Type:Article
Title:The MASCOT Radiometer MARA for the Hayabusa 2 Mission
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Grott, M.matthias.grott (at) dlr.deUNSPECIFIED
Knollenberg, J.joerg.knollenberg (at) dlr.deUNSPECIFIED
Borgs, B.belinda.borgs (at) dlr.deUNSPECIFIED
Hänschke, F.Institute of Photonic TechnologyJenaGermanyUNSPECIFIED
Kessler, E.Institute of Photonic TechnologyJenaGermanyUNSPECIFIED
Helbert, J.joern.helbert (at) dlr.deUNSPECIFIED
Maturilli, A.alessandro.maturilli (at) dlr.deUNSPECIFIED
Müller, N.jet propulsion laboratory, california institute of technology, 4800 oak grove dr., pasadena ca, 91109UNSPECIFIED
Date:1 August 2016
Journal or Publication Title:Space Science Reviews
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1007/s11214-016-0272-1
Page Range:pp. 413-431
Bloemen, H.SRON Netherlands Institute for Space Research
Keywords:Hayabusa 2, MASCOT, Radiometer, Temperature measurement, Thermal inertia
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Institute of Planetary Research > Planetary Physics
Institute of Planetary Research > Asteroids and Comets
Deposited By: Rückriemen, Tina
Deposited On:21 Sep 2017 11:13
Last Modified:03 Aug 2018 15:29

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