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Proceedings Paper

Characterization of the integrating sphere for the on-ground calibration of the SIMBIOSYS instrument for the BepiColombo ESA mission
Author(s): Vania Da Deppo; Elena Martellato; Guglielmo Rossi; Giampiero Naletto; Vincenzo Della Corte; Fabrizio Capaccioni; Gianrico Filacchione; Michele Zusi; Pasquale Palumbo; Gianluca Aroldi; Marco Baroni; Donato Borrelli; Leonardo Tommasi; Michele Dami; Iacopo Ficai Veltroni; Enrico Flamini; Gabriele Cremonese
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Paper Abstract

SIMBIOSYS is a highly integrated instrument suite that will be mounted on-board BepiColombo, which is the fifth cornerstone mission of the European Space Agency dedicated to the exploration of the planet Mercury and it is expected to be launched in 2016. The SIMBIOSYS instrument consists of three channels: the STereo imaging Channel (STC), with broad spectral bands in the 400–950 nm range and medium spatial resolution (up to 50 m/px); the High Resolution Imaging Channel (HRIC), with broad spectral bands in the 400–900 nm range and high spatial resolution (up to 5 m/px), and the Visible and near- Infrared Hyperspectral Imaging channel (VIHI), with high spectral resolution (up to 6 nm) in the 400–2000 nm range and spatial resolution up to 100 m/px. The on-ground calibration system has to cover the full spectral range of the instrument, i.e. from 400 to 2000 nm, and the emitted radiance has to vary over a range of four decades to account for both simulations of Mercury surface acquisition and star field observations. The methods and the results of the measurements done to calibrate the integrating sphere needed for the on-ground radiometric testing of the SIMBIOSYS instrument will be given and discussed. Temporal stability, both on short and long periods, spatial and spectral uniformity, and the emitted radiance for different lamp configurations and different shutter apertures have been measured. The results of the data analysis confirm that the performance of the integrating sphere is well suited for the radiometric calibration of all the three different channels of the SIMBIOSYS instrument.

Paper Details

Date Published: 28 August 2014
PDF: 14 pages
Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 914344 (28 August 2014); doi: 10.1117/12.2057349
Show Author Affiliations
Vania Da Deppo, IFN-CNR LUXOR Lab. (Italy)
INAF - Osservatorio Astronomico di Padova (Italy)
Elena Martellato, Univ. degli Studi di Padova (Italy)
INAF- Osservatorio Astronomico di Padova (Italy)
Guglielmo Rossi, Univ. degli Studi di Firenze (Italy)
SELEX ES S.p.A. (Italy)
Giampiero Naletto, Univ. degli Studi di Padova (Italy)
IFN-CNR LUXOR Lab. (Italy)
INAF-Osservatorio Astronomico di Padova and CISAS - Univ. degli Studi di Padova (Italy)
Vincenzo Della Corte, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Fabrizio Capaccioni, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Gianrico Filacchione, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Michele Zusi, INAF - Osservatorio Astronomico di Capodimonte (Italy)
Pasquale Palumbo, Univ. degli Studi di Napoli Parthenope (Italy)
Gianluca Aroldi, SELEX ES S.p.A. (Italy)
Marco Baroni, SELEX ES S.p.A. (Italy)
Donato Borrelli, SELEX ES S.p.A. (Italy)
Leonardo Tommasi, SELEX ES S.p.A. (Italy)
Michele Dami, SELEX ES S.p.A. (Italy)
Iacopo Ficai Veltroni, SELEX ES S.p.A. (Italy)
Enrico Flamini, Agenzia Spaziale Italiana (Italy)
Gabriele Cremonese, INAF - Osservatorio Astronomico di Padova (Italy)


Published in SPIE Proceedings Vol. 9143:
Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann; Mark Clampin; Giovanni G. Fazio; Howard A. MacEwen, Editor(s)

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