MOS-1 (satellite)
MOS-1 - "Marine Observation Satellite 1", also known as "Momo-1" - was Japan's first Earth observation satellite. It was launched on 19 February 1987 on a N-2 rocket from Tanegashima.
It has three instruments: "Multi-Spectral Electronic Self-Scanning Radiometer (MESSR)" which offers 50m resolution in two visible and two infra-red spectral bands over two 100 km swathes; "Visible and Thermal Infrared Radiometer (VTIR)" which has a much lower resolution in one visible and three IR bands over a 1500 km swathe; "Micro Scanning Radiometer (MSR)" which measures microwave emission in the 23 GHz and 31 GHz bands.
Its NORAD ID is 17527; it is in a polar orbit at roughly 900 km altitude, but has not been active since November 1995.
External links
launch: http://www.jaxa.jp/projects/sat/mos1/index_e.html
instruments: http://www.eorc.jaxa.jp/en/hatoyama/satellite/satdata/mos_e.html
orbit: http://www.n2yo.com/satellite/?s=17527