23 September 1993 Spaceborne UV imaging spectrograph for environmental sensing
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An imaging spectrograph with high spectral resolution (< 0.55 nm) operating in the UV region between 300 - 320 nm is presented. The instrument uses Differential Optical Absorption Spectroscopy (DOAS) to monitor the SO2 total content in the earth's atmosphere from a sun synchronous orbit. The design of the entire instrument including wide-angle optics (+/- 57.5 degree(s)), opto- mechanics and sensor electronics (low light CCD application) and the in-flight calibration unit are described. The requirements on stability and calibration accuracy of the instrument caused by the DOAS method are outlined.
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Roland Graue, Roland Graue, Dirk Kampf, Dirk Kampf, Harald Rippel, Harald Rippel, "Spaceborne UV imaging spectrograph for environmental sensing", Proc. SPIE 1937, Imaging Spectrometry of the Terrestrial Environment, (23 September 1993); doi: 10.1117/12.157063; https://doi.org/10.1117/12.157063

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