Mueller, N.T. and Knollenberg, Jörg and Grott, M. and Kopp, E. and Walter, I. and Krause, C. and Hudson, T.L. and Spohn, T. and Smrekar, S. (2020) Calibration of the HP³ Radiometer on InSight. Earth and Space Science, 7 (5), e01086. American Geophysical Union (AGU). doi: 10.1029/2020EA001086. ISSN 2333-5084.
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Official URL: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020EA001086
Abstract
The Heatflow and Physical Properties Package (HP³) radiometer is currently operating on Mars, observing two spots approximately 1 and 3 m north‐north‐west of the InSight lander. The instrument has primary sensors that are sensitive in the range of 8 to 14 µm and two more sensors with more narrow spectral ranges per field of view. The radiometer underwent radiometric and geometric calibration at DLR-Berlin; and on Mars radiometric self‐calibration is performed regularly. The self‐calibration confirms that one of the two primary sensors has been stable since the ground calibration, but environmental parameters that are likely associated with the thermal contact of sensor and instrument main body may have slightly changed. The other primary sensor has increased in sensitivity for an unknown reason but is still within expectation from the sensor design. The uncertainty of the two primary sensors is approximately 3 K at night, with somewhat larger errors in the late afternoon. This estimate includes the effect of sensitivity changes that would be too small to be reliably detected by the self-calibration.
Item URL in elib: | https://elib.dlr.de/136912/ | ||||||||||||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||||||||||||
Title: | Calibration of the HP³ Radiometer on InSight | ||||||||||||||||||||||||||||||
Authors: |
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Date: | March 2020 | ||||||||||||||||||||||||||||||
Journal or Publication Title: | Earth and Space Science | ||||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||||||||
Gold Open Access: | Yes | ||||||||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||||
Volume: | 7 | ||||||||||||||||||||||||||||||
DOI : | 10.1029/2020EA001086 | ||||||||||||||||||||||||||||||
Page Range: | e01086 | ||||||||||||||||||||||||||||||
Publisher: | American Geophysical Union (AGU) | ||||||||||||||||||||||||||||||
ISSN: | 2333-5084 | ||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||
Keywords: | thermal infrared radiometer, calibration, Mars surface temperature | ||||||||||||||||||||||||||||||
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 InSight - HP3 | ||||||||||||||||||||||||||||||
Location: | Berlin-Adlershof , Köln-Porz | ||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Planetary Research > Planetary Physics Institute of Optical Sensor Systems > Space Instruments Space Operations and Astronaut Training > User center for space experiments (MUSC) | ||||||||||||||||||||||||||||||
Deposited By: | Müller, Nils | ||||||||||||||||||||||||||||||
Deposited On: | 27 Oct 2020 08:04 | ||||||||||||||||||||||||||||||
Last Modified: | 27 Oct 2020 08:04 |
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