Improved ground calibration results from Southwest Research Institute Ultraviolet Radiometric Calibration Facility (UV-RCF)

Michael W. Davis; Thomas K. Greathouse; G. Randall Gladstone; Kurt D. Retherford; David C. Slater; S. Alan Stern; Maarten H. Versteeg

doi:10.1117/12.2057043

25 July 2014 Improved ground calibration results from Southwest Research Institute Ultraviolet Radiometric Calibration Facility (UV-RCF)

Michael W. Davis, Thomas K. Greathouse, G. Randall Gladstone, Kurt D. Retherford, David C. Slater, S. Alan Stern, Maarten H. Versteeg

Author Affiliations +

Proceedings Volume 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray; 914433 (2014) https://doi.org/10.1117/12.2057043
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

Four compact planetary ultraviolet spectrographs have been built by Southwest Research Institute and successfully operated on different planetary missions. These spectrographs underwent a series of ground radiometric calibrations before delivery to their respective spacecraft. In three of the four cases, the in-flight measured sensitivity was approximately 50% lower than the ground measurement. Recent tests in the Southwest Research Institute Ultraviolet Radiometric Calibration Facility (UV-RCF) explain the discrepancy between ground and flight results. Revised ground calibration results are presented for the Rosetta-Alice, New Horizons-Alice, the Lunar Reconnaissance Orbiter Lyman- Alpha Mapping Project, and Juno-Ultraviolet Spectrograph (UVS) and are then compared to the original ground and flight calibrations. The improved understanding of the calibration system reported here will result in improved ground calibration of the upcoming Jupiter Icy Moons Explorer (JUICE)-UVS.

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Michael W. Davis, Thomas K. Greathouse, G. Randall Gladstone, Kurt D. Retherford, David C. Slater, S. Alan Stern, and Maarten H. Versteeg "Improved ground calibration results from Southwest Research Institute Ultraviolet Radiometric Calibration Facility (UV-RCF)", Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 914433 (25 July 2014); https://doi.org/10.1117/12.2057043

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