Cryogenic limb array etalon spectrometer calibration

Lanny W. Sterritt; Aidan E. Roche; Bruce Charles Steakley; John B. Kumer; K. M. Zickuhr

doi:10.1117/12.23046

1 November 1990 Cryogenic limb array etalon spectrometer calibration

Lanny W. Sterritt, Aidan E. Roche, Bruce Charles Steakley, John B. Kumer, K. M. Zickuhr

Proceedings Volume 1340, Cryogenic Optical Systems and Instruments IV; (1990) https://doi.org/10.1117/12.23046
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

The CLAES is calibrated with a full-aperture blackbody on the instrument-aperture door. In laboratory calibration, the blackbody is resistively heated. On orbit, the blackbody is intended to be heated by exposure to radiation from the earth while the door is open; calibration data are then taken at several temperatures after closing the door, as the blackbody cools to the temperature of the instrument's cryogenic telescope. An analysis of radiometric calibration-source accuracy is shown, indicating a nominal value of 2.7 percent at 12.63 microns. Preliminary analysis of calibration data indicates a measurement repeatability of about 1.25 percent. Details of the blackbody design, construction, and thermal instrumentation are given.

Citation Download Citation

Lanny W. Sterritt, Aidan E. Roche, Bruce Charles Steakley, John B. Kumer, and K. M. Zickuhr "Cryogenic limb array etalon spectrometer calibration", Proc. SPIE 1340, Cryogenic Optical Systems and Instruments IV, (1 November 1990); https://doi.org/10.1117/12.23046

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