VIIRS F1 "best" relative spectral response characterization by the government team

Chris Moeller; Jeff McIntire; Tom Schwarting; Dave Moyer

doi:10.1117/12.894552

13 September 2011 VIIRS F1 "best" relative spectral response characterization by the government team

Chris Moeller, Jeff McIntire, Tom Schwarting, Dave Moyer

Proceedings Volume 8153, Earth Observing Systems XVI; 81530K (2011) https://doi.org/10.1117/12.894552
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

The VIIRS Flight 1 (F1) instrument completed sensor level testing, including relative spectral response (RSR) characterization in 2009 and is moving forward towards a launch on the NPP platform late in 2011. As part of its mandate to produce analyses of F1 performance essentials, the VIIRS Government Team, consisting of NASA, Aerospace Corp., and MIT/Lincoln Lab elements, has produced an independent (from that of industry) analysis of F1 RSR. The test data used to derive RSR for all VIIRS spectral bands was collected in the TVAC environment using the Spectral Measurement Assembly (SpMA), a dual monochromator system with tungsten and ceramic glow bar sources. These spectrally contiguous measurements were analyzed by the Government Team to produce a complete in-band + out-of-band RSR for 21 of the 22 VIIRS bands (exception of the Day-Night Band). The analysis shows that VIIRS RSR was well measured in the pre-launch test program for all bands, although the measurement noise floor is high on the thermal imager band I5. The RSR contain expected detector to detector variation resulting from the VIIRS non-telecentric optical design, and out-of-band features are present in some bands; non-compliances on the integrated out-of-band spectral performance metric are noted in M15 and M16A,B bands and also for several VisNIR bands, though the VisNIR non-compliances were expected due to known scattering in the VisNIR integrated filter assembly. The Government Team "best" RSR have been released into the public domain for use by the science community in preparation for the post-launch era of VIIRS F1.

Citation Download Citation

Chris Moeller, Jeff McIntire, Tom Schwarting, and Dave Moyer "VIIRS F1 "best" relative spectral response characterization by the government team", Proc. SPIE 8153, Earth Observing Systems XVI, 81530K (13 September 2011); https://doi.org/10.1117/12.894552

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