Use of the moon for spacecraft calibration over 350 to 2500 nm

Hugh H. Kieffer; James M. Anderson

doi:10.1117/12.333646

21 December 1998 Use of the moon for spacecraft calibration over 350 to 2500 nm

Hugh H. Kieffer, James M. Anderson

Proceedings Volume 3498, Sensors, Systems, and Next-Generation Satellites II; (1998) https://doi.org/10.1117/12.333646
Event: Remote Sensing, 1998, Barcelona, Spain

Abstract

The Moon is the only natural object outside the Earth's atmosphere that is within the dynamic range of most imaging instruments on Earth-orbiting spacecraft. The excellent photometric stability of the Lunar surface will allow its use as a long-term instrument calibration source once the dependence of Lunar spectral radiance on phase and libration angles are well characterized. A program to provide this characterization is underway. Observations are being made in 23 bands within 350 - 950 nm, 7 of which correspond closely with spacecraft instrument bands. Observations in nine bands within 950 - 2500 nm began recently. Although at this time the absolute Lunar radiance model is preliminary and uncertainties are larger than most instrument calibration goals, changes in spacecraft instrument sensitivity can be precisely monitored and absolute calibration can be applied retroactively as the accuracy of the Lunar spectral radiance model improves. Several space-based imaging systems have already begun using the Moon for calibration and the EOS AM-1 platform will make periodic attitude maneuvers for Lunar and space calibration.

Citation Download Citation

Hugh H. Kieffer and James M. Anderson "Use of the moon for spacecraft calibration over 350 to 2500 nm", Proc. SPIE 3498, Sensors, Systems, and Next-Generation Satellites II, (21 December 1998); https://doi.org/10.1117/12.333646

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