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Proceedings Paper

Onboard short-wavelength calibration monitor for the GERB instrument: progress
Author(s): Peter David Read; Martin E. Caldwell; D. Smart; David L. Smith; Eric C. Sawyer; C. T. Mutlow
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Paper 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.

Paper Details

Date Published: 21 December 1998
PDF: 11 pages
Proc. SPIE 3498, Sensors, Systems, and Next-Generation Satellites II, (21 December 1998); doi: 10.1117/12.333640
Show Author Affiliations
Peter David Read, Rutherford Appleton Lab. (United Kingdom)
Martin E. Caldwell, Rutherford Appleton Lab. (United Kingdom)
D. Smart, Rutherford Appleton Lab. (United Kingdom)
David L. Smith, Rutherford Appleton Lab. (United Kingdom)
Eric C. Sawyer, Rutherford Appleton Lab. (United Kingdom)
C. T. Mutlow, Rutherford Appleton Lab. (United Kingdom)

Published in SPIE Proceedings Vol. 3498:
Sensors, Systems, and Next-Generation Satellites II
Hiroyuki Fujisada, Editor(s)

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