Mtsat 1

Multi-functional Transport Satellite

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General

Designation	n/a
Launch date	15 Nov 1999
Country of origin	Japan
Mission	Telecommunications and meteorology
Geostationary orbit	140°E
Launch vehicle	H2 #7

Japanese system for air traffic control and weather observation. Ordered by the Japanese Ministry for Transport & Meteorological agency to Space Systems/Loral ($102 million). Is the successor of the GMS program (was to replace GMS 5). The navigation system is the equivalent of the US WASS and European EGNOS programs.

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End of life

Out of service	15 Nov 1999
Cause	Launcher failed

In Jun 1999 the satellite had to be shipped back to SS/L after a part for the power supply in a similar product was found defective. The satellite was not insured.

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External resources

http://www.mpt.go.jp/index-e.html

Technical data

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Specifications

Prime contractor	SS/L
Platform	FS-1300
Mass at launch	2900 kg
Dry mass	1223 kg
Dimension	2.4 x 2.6 x 2.6 m
Solar array	1 single panel
Stabilization	3-axis
DC power	EOL: 2700 W
Design lifetime	10-years

Should have operated in UHF-, L-, S-, Ku- and Ka-band

Weather sensor built by ITT Aerospace/Commnucations division. The rest of the payload was built by Alcatel Space Industries.

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