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The measurement of the noise-equivalent spectral radiance of SIMBIO-SYS/VIHI spectrometer

Date Issued
2018
Author(s)
•
•
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Tommasi, L.
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Ficai Veltroni, I.
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Dami, M.
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Aroldi, G.
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Borrelli, D.
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Barbis, A.
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Baroni, M.
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Pastorini, G.
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Mugnuolo, R.
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DOI
Abstract
We report about the measurement of the Noise- Equivalent Spectral Radiance (NESR) of the VIHI imaging spectromter aboard ESA's Bepi Colombo mission to Mercury. The knowledge of the NESR allows to determine the capability of an optical detector to measure faint signals. A description of the setup used to determine the NESR during the prelaunch calibration campaign is given. The processing of the data col- lected at various operative temperatures and integration times is described. The sensitivity study of the NESR has been performed at the expected detector's temperatures and integration times with the goal to determine the minimum spectral radiance at which VIHI is sensitive during the different observation phases of the mission. A simulation of the expected Signal-to-Noise Ratio (SNR) of VIHI during the different orbital phases is provided.
Coverage
5th IEEE International Workshop on Metrology for AeroSpace (MetroAeroSpace)
Series
Start page
252
Conferenece
5th IEEE International Workshop on Metrology for AeroSpace (MetroAeroSpace)
Conferenece place
Roma
Conferenece date
20-22 June, 2018
Uri
Url
Issn Identifier
2575-7482
Ads BibCode
2018maes.conf..252F
Rights
open.access
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