MOS

## MOS (Marine Observation Satellite), Japan

The MOS program consists of a series of satellites for observation of ocean surface, vegetation, land ecology and measurement of stratospheric water vapour and surface temperature. MOS-1 ("Momo-1"), launched in 19 February 1987, was Japan's first experimental Earth observation mission. The follow-up mission is MOS-1b, launched in 7 February 1990. It also carries a microwave radiometer, besides optical sensors.

Operation of MOS-1 ended on March 31,1995 and at the end of April 1996.MOS-1b operation is terminated, after over six years of service, due to degradation of batteries.

## MOS Orbit

:

Type | Sun-Synchronous
Altitude | 908 km
Period | 103 min
Repeat Cycle | 17 days

Sensors (MOS-1b)

- MESSR (Multispectral Electronic Self-Scanning Radiometer)
- VTIR (Visible and Thermal Infrared Radiometer))
- MSR (Microwave Scanning Radiometer)

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