Nov. 5, 2004 Japan Aerospace Exploration Agency (JAXA)<\/p>\n
At 16:47 on 4 Nov. 2004 (JST), a data deficit (all data was 0 level) in one of the observation channels of JAXA’s Advanced Microwave Scanning Radiometer for EOS (AMSR-E) was found. AMSR-E is mounted on the National Aeronautics and Space Administration’s (NASA’s) earth observation satellite “Aqua.” After the analysis of this phenomenon, it was ascertained that receiver A for one of 6 observation frequency bands (89GHz), operated with receiver B in parallel to assure observation field of view, has been defective to output observation data after15:02 (the same day).
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\nWith this situation in mind, JAXA will conduct a investigation to determine the cause and advance measures for its recovery including switching on to the redundant system under the cooperation with NASA.<\/p>\n
The condition of the satellite and other receivers for other frequency bands are normal. <\/p>\n
Aqua was launched on 4 May 2002, and is in normal observation operation.<\/p>\n
The AMSR-E is a microwave radiometer intended for performing observations of sea surface temperature, precipitation and rainfall. The AMSR-E performs the observations over six frequency bands : 6GHz ,10 GHz, 18 GHz, 23 GHz, 36 GHz, 89 GHz. <\/p>\n