MISC

2005年12月

Onboard calibration of the ASTER instrument

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
  • F Sakuma
  • ,
  • A Ono
  • ,
  • S Tsuchida
  • ,
  • N Ohgi
  • ,
  • H Inada
  • ,
  • S Akagi
  • ,
  • H Ono

43
12
開始ページ
2715
終了ページ
2724
記述言語
英語
掲載種別
DOI
10.1109/TGRS.2005.857887
出版者・発行元
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is a high spatial resolution optical sensor for observing the Earth carried on the National Aeronautics and Space Administration Terra satellite. ASTER consists of three radiometers covering the following regions: visible and near-infrared (VNIR), shortwave infrared (SWIR), and thermal infrared (TIR). The preflight calibration of VNIR and SWIR utilized standard large integrating spheres whose radiance levels Were traceable to primary standard fixed-point blackbodies. The onboard calibration devices for the VNIR and SWIR consist of two halogen lamps with photodiode monitors. In orbit, all three bands of the VNIR showed rapid decreases in the output signal while all SWIR bands remained stable. The TIR onboard blackbody was calibrated against a standard blackbody from 100-400 K in a vacuum chamber before launch. The TIR is unable to see the dark space. The temperature of the TIR onboard blackbody remains at 270 K for a short-term calibration to determine any offset and is varied from 270-340 K for a long-term calibration of both the offset and gain. The long-term calibration just after launch was consistent with the prelaunch calibration but then showed a steady decrease of the TIR response over the five years of operation to date.

Web of Science ® 被引用回数 : 19

リンク情報
DOI
https://doi.org/10.1109/TGRS.2005.857887
CiNii Articles
http://ci.nii.ac.jp/naid/30019686373
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000233479000003&DestApp=WOS_CPL

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