Onboard short-wavelength calibration monitor for the GERB instrument: progress

Peter David Read; Martin E. Caldwell; D. Smart; David L. Smith; Eric C. Sawyer; C. T. Mutlow

doi:10.1117/12.333640

21 December 1998 Onboard short-wavelength calibration monitor for the GERB instrument: progress

Peter David Read, Martin E. Caldwell, D. Smart, David L. Smith, Eric C. Sawyer, C. T. Mutlow

Proceedings Volume 3498, Sensors, Systems, and Next-Generation Satellites II; (1998) https://doi.org/10.1117/12.333640
Event: Remote Sensing, 1998, Barcelona, Spain

Abstract

Solar diffuser based monitors are the preferred method for on- board calibration for short wavelength regions of Radiometric Earth Remote Sensing instruments where spectral matching and long term stability are paramount. This paper describes an aluminum integrating sphere, with internal photo-diode monitoring, being developed for the on-board short wavelength, (0.32 - 4 micrometer) calibration monitor of the GERB instrument. GERB will image the earth surface from geostationary orbit over a bandwidth of 0.32 - 30 micrometer and is mounted on the Meteosat Second Generation (MSG) spin stabilized satellite resulting in a very rapidly rotating field of view of GERB (100 RPM). The adopted arrangement for the integrating sphere is described and its performance illustrated with supporting test data and optical modeling. Comparisons with the ATSR-2, MS20 flat tile system are made and recommendations for future calibration systems, drawn.

Citation Download Citation

Peter David Read, Martin E. Caldwell, D. Smart, David L. Smith, Eric C. Sawyer, and C. T. Mutlow "Onboard short-wavelength calibration monitor for the GERB instrument: progress", Proc. SPIE 3498, Sensors, Systems, and Next-Generation Satellites II, (21 December 1998); https://doi.org/10.1117/12.333640

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