3 October 1998 Overview of CERES sensors and in-flight performance
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The Clouds and Earth Radiant Energy System (CERES) instrument is designed to measure the Earth's radiation budget and also to make measurements from which the anisotropy of reflected solar radiation can be computed. The instrument design, which is based on the Earth Radiation Budget Experiment (ERBE), and its operations are described. The instrument can scan in elevation and azimuth simultaneously. The azimuthal rotation is important for gathering data to describe the anisotropy of the reflected solar radiance field. The ground vacuum calibration facility ties the calibration of the instrument to the International Temperature Scale of 1990. In-flight calibration sources are included to maintain and demonstrate the required 1 percent accuracy of each mission. Flight operations to achieve the accuracy are also discussed. The CERES Proto-Flight Model is flying on the Tropical Rainfall Measurement Mission spacecraft and successive models are scheduled to fly aboard the EOS/AM-1 and EOS/PM-1 platforms. The objectives of each flight of the instrument are discussed.
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G. Louis Smith, G. Louis Smith, Robert Benjamin Lee, Robert Benjamin Lee, Bruce R. Barkstrom, Bruce R. Barkstrom, Bruce A. Wielicki, Bruce A. Wielicki, Kory J. Priestley, Kory J. Priestley, Susan Thomas, Susan Thomas, Jack Paden, Jack Paden, Robert S. Wilson, Robert S. Wilson, Dhirendra K. Pandey, Dhirendra K. Pandey, K. Lee Thornhill, K. Lee Thornhill, } "Overview of CERES sensors and in-flight performance", Proc. SPIE 3439, Earth Observing Systems III, (3 October 1998); doi: 10.1117/12.325635; https://doi.org/10.1117/12.325635


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