calibration of all-sky cameras and tilting-photometers using an integrating-sphere and a spectrometer

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ID: 163055
1999
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Abstract
We report calibration of the optical instruments of the Optical Mesosphere Thermosphere Imagers (OMTI) using facilities at the National Institute of Polar Research. OMTI has been developed to investigate dynamics of the upper atmosphere through nocturnal airglow emissions. OMTI consist of an imaging Fabry-Perot interferometer, three all-sky cooled-CCD cameras, three tilting-photometers, and a spectral airglow temperature imager (SATI). The all-sky cameras and the photometers have been calibrated using a 2-m integrating-sphere and a spectrometer. Absolute sensitivity and image-flattening data are obtained together with filter transmission functions. Inhomogeneity of transmission function on the filter surface is found from the calibration using the spectrometer. We also find that filters with highly-flattened image-quality surfaces may cause serious Newton's Ring pattern on final images. Examples of the data are shown for the cameras and the photometers based on the airglow observation at Shigaraki (35°N, 136°E), Japan.
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katoh1999antarcticcalibration Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Yasuo Katoh;Kazuo Shiokawa;Mitsugi Satoh;Mitsumu K. Ejiri;Tadahiko Ogawa
Journal revista facultad nacional de agronomía medellín
Year 1999
DOI
10.15094/00009066
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