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Multi-Functional Transport Satellite
From Wikipedia, the free encyclopedia
MTSAT are a series of weather and aviation control satellites. They are geostationary satellites. They are owned and operated by the Japanese Ministry of Land, Infrastructure and Transport and the Japan Meteorological Agency (JMA), and provide coverage for the hemisphere centred on 140° East; this includes Japan and Australia who are the principal users of the satellite imagery that MTSAT provides. They replace the GMS-5 satellite, also known as Himawari 5 (“himawari” or “ひまわり” meaning “sunflower”). They can provide imagery in five wavelength bands — visible and four infrared, including the water vapour channel. The visible light camera has a resolution of 1 km; the infrared cameras have 4 km (resolution is lower away from the equator at 140° East). The spacecraft have a planned lifespan of five years. MTSAT-1 and 1R were built by Space Systems/Loral. MTSAT-2 was built by Mitsubishi.
The launch of MTSAT-1, on a Japanese H-II rocket, failed on 15 November 1999 and the spacecraft was destroyed. MTSAT-1R (also known as Himawari 6) was successfully launched on a H-IIA on 26 February 2005 and became partially operational on 28 June 2005 — the aviation payload is not functional as two MTSATs are required for air traffic control. MTSAT-2 successfully launched on February 18, 2006. The weather functions of MTSAT-2 will be put into hibernation until the end of MTSAT-1R’s life (5 years from launch). The transportation and communication functions of MTSAT-2 will be utilized prior to that time.
- JMA Satellite Activities (accessed August 13, 2005)
- MTSAT information from Australian Bureau of Meteorology (accessed August 13, 2005)
- Gunter's Space Page:
- Loral.com: Loral-built MTSAT-1R multi-functional satellite successfully launched
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