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Calibration of a satellite infrared radiometer.

Authors :
Barnes WL
Price JC
Source :
Applied optics [Appl Opt] 1980 Jul 01; Vol. 19 (13), pp. 2153-61.
Publication Year :
1980

Abstract

The calibration procedure is described for a two-channel imaging radiometer on board the Heat Capacity Mapping Mission, a single sensor satellite in a near polar orbit. The Heat Capacity Mapping Radiometer measures radiation temperature and reflectivity with an instantaneous FOV of 600 m and a noise equivalent temperature of 0.4 K at 280 K in the thermal IR channel. Unexplained changes in the system during satellite launch were treated through comparison with surface/atmosphere data to force agreement. This necessitated an offset from the prelaunch calibration by 5.5 K. Later comparisons showed no difference. Possible explanations are described.

Details

Language :
English
ISSN :
1559-128X
Volume :
19
Issue :
13
Database :
MEDLINE
Journal :
Applied optics
Publication Type :
Academic Journal
Accession number :
20221201
Full Text :
https://doi.org/10.1364/AO.19.002153