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Description:Data analysis of the thermal vacuum IR calibration testing of the GOES SN03 imager is presented. Responsivity versus time data indicate that the instrument is stable and uncontaminated. Data on responsivity versus various instrument temperatures are presented to assess expected diurnal on orbit thermal effects. A complete set of calibration coefficients, including offset, slope and quadratic terms along with corresponding statistical errors, is presented. A possible target related systematic quadratic calibration error source is discussed. On orbit radiance temperature errors are estimated to be about 0.1 K to 0.4 K, depending on instrument operating conditions. The effect on temperature error due to frequency of onboard blackbody calibrations is presented. Finally, the effect on drift related noise due to frequency of space clamps is shown to be smaller than previously anticipated.
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