Preflight test results of the ASTER SWIR flight model

Yuji Iwata; Michio Otsuka; Hiroshi Akao

doi:10.1117/12.298081

31 December 1997 Preflight test results of the ASTER SWIR flight model

Yuji Iwata, Michio Otsuka, Hiroshi Akao

Proceedings Volume 3221, Sensors, Systems, and Next-Generation Satellites; (1997) https://doi.org/10.1117/12.298081
Event: Aerospace Remote Sensing '97, 1997, London, United Kingdom

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.

Citation Download Citation

Yuji Iwata, Michio Otsuka, and Hiroshi Akao "Preflight test results of the ASTER SWIR flight model", Proc. SPIE 3221, Sensors, Systems, and Next-Generation Satellites, (31 December 1997); https://doi.org/10.1117/12.298081

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