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Proceedings Paper

Preflight test results of the ASTER SWIR flight model
Author(s): Yuji Iwata; Michio Otsuka; Hiroshi Akao
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Paper Abstract

A series of observational performances tests and mechanical/thermal environmental tests had been performed on the advanced spaceborne thermal emission and reflection radiometer (ASTER) short wave infrared radiometer (SWIR) proto flight model (PFM). Radiometric resolution test results show that S/Ns (signal to noise ratio) are about 130 to 300 at high level radiance and about 35 to 70 at low level radiance for all six bands. Spectral characteristics test results show that center of band width, band width and band edge response are sufficiently good for the requirement to the ASTER SWIR PFM. MTF test results show values of about 0.4 at Nyquist frequency and 0.8 at 1/2 Nyquist frequency in square wave responses. Pointing performance test results show that good stability is accomplished with Stirling cycle cryocooler driving. The observational performances of the ASTER SWIR PFM do not show significant change throughout mechanical/thermal environmental tests. The environmental tests do not affect the alignment of the optical components.

Paper Details

Date Published: 31 December 1997
PDF: 8 pages
Proc. SPIE 3221, Sensors, Systems, and Next-Generation Satellites, (31 December 1997); doi: 10.1117/12.298081
Show Author Affiliations
Yuji Iwata, Mitsubishi Electric Corp. (Japan)
Michio Otsuka, Mitsubishi Electric Corp. (Japan)
Hiroshi Akao, Mitsubishi Electric Corp. (Japan)


Published in SPIE Proceedings Vol. 3221:
Sensors, Systems, and Next-Generation Satellites
Hiroyuki Fujisada, Editor(s)

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