JCSAT-5A
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JCSAT-5A or N-STAR d, known as JCSAT-9 before launch, is a geostationary communications satellite operated by SKY Perfect JSAT Group (JSAT), which was designed and manufactured by Lockheed Martin on the A2100 platform.[1][2]
Satellite description
The spacecraft was designed and manufactured by Lockheed Martin on the A2100-AX satellite bus. It had a launch mass of Template:Cvt and a 12-year design life. It would provide communications services throughout Japan and Asia and for NTT DoCoMo.As most satellites based on the A2100-AX platform, it uses a Template:Cvt LEROS-1C liquid apogee engine (LAE) for orbit raising. Its solar panels span Template:Cvt when fully deployed, and, with its antennas in fully extended configurations it is Template:Cvt wide.[1][3][4]
Its payload consists of eight 54 MHz and twelve 36 MHz Ku-band transponders, twenty 36 MHz C-band transponders, and one S-band beam. The Ku-band transponders have a TWTA output power of 110 watts, a C-band of 45 watts, and a S beam of 130 watts.[3][4]
History
On 30 April 2003, JSAT awarded an order for JCSAT-9 to Lockheed Martin and its A2100-AXS platform. Moreover in May 2003, JSAT leased some transponders to NTT DoCoMo to be used as N-STAR d for its WIDESTAR II service. A hybrid satellite with 20 C-band, 20 Ku-band, and 1 S-band transponders, it was expected to launch in 2005 for the 132° East slot.[5][1]
On 12 April 2006 at 23:29:59 UTC, a Zenit-3SL launching from the offshore Odyssey launch platform successfully orbited JCSAT-9. Separation from the launch vehicle occurred at 00:38:02 UTC. JSAT had leased some transponders to NTT DoCoMo to be used as N-STAR d. Once in its 132° East orbital position, it was renamed JCSAT-5A and N-STAR d.[1][6][3]
See also
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References
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