JCSAT-RA
{{Short description|Japanese communications satellite}}
{{Infobox spaceflight|auto=all
| name = JCSAT-RA
| image =
| image_caption =
| mission_type = Communication
| operator = SKY Perfect JSAT Group
| website =
| COSPAR_ID = 2009-044A
| SATCAT = 35755
| mission_duration = 15 years
| spacecraft_bus = A2100AXS
| manufacturer = Lockheed Martin
| dry_mass =
| launch_mass = {{convert|4000|kg}}
| power =
| launch_date = {{start-date|21 August 2009, 22:09|timezone=yes}} UTC
| launch_rocket = Ariane 5ECA
| launch_contractor = Arianespace
| entered_service =
| disposal_type =
| deactivated =
| orbit_epoch = 24 January 2015, 13:19:57 UTC{{cite web|url=http://www.n2yo.com/satellite/?s=35755|title=JCSAT 12 Satellite details 2009-044A NORAD 35755|publisher=N2YO|date=24 January 2015|access-date=25 January 2015}}
| orbit_reference = Geocentric
| orbit_regime = Geostationary
| orbit_periapsis = {{convert|35787|km|mi}}
| orbit_apoapsis = {{convert|35798|km|mi}}
| orbit_inclination = 0.04 degrees
| orbit_period = 1436.11 minutes
| orbit_longitude =
| orbit_slot =
| apsis = gee
| trans_band =
| trans_frequency =
| trans_bandwidth =
| trans_capacity =
| trans_coverage =
| trans_TWTA =
| trans_EIRP =
| trans_HPBW =
| programme = JSAT
| previous_mission =JCSAT-11
| next_mission =JCSAT-13
}}
JCSAT-RA, previously known as JCSAT-12, is a Japanese geostationary communications satellite, which is operated by SKY Perfect JSAT Group.
Details
It was ordered to replace the JCSAT-11 satellite which was lost in a launch failure on a Proton-M/Briz-M rocket in 2007, and is currently used as an on-orbit spare satellite; a role in which it replaced the older JCSAT-R spacecraft, providing a reserve for if one of the company's other satellites fails. It is a {{convert|4000|kg|adj=on}} satellite, which was constructed by Lockheed Martin based on the A2100AX satellite bus, with the same configuration as JCSAT-10 and JCSAT-11.{{cite web|url=http://space.skyrocket.de/doc_sdat/jcsat-10.htm|title=JCSat 10, 11, 12 (JCSat 3A, RA)|last=Krebs|first=Gunter|publisher=Gunter's Space Page|access-date=31 July 2010}} The contract to build JCSAT-12 was awarded on 6 September 2007, the day after JCSAT-11 failed to reach orbit.{{cite web|url=http://www.sptvjsat.com/en/newsJSAT/news_pdf/070906_JS_replace_en.pdf|title=Order of the Replacement Satellite of JCSAT-11 Backup Satellite Following Launch Failure|date=2007-09-06|publisher=JSAT Corporation|access-date=2009-08-21|url-status=dead|archive-url=https://web.archive.org/web/20110721175218/http://www.sptvjsat.com/en/newsJSAT/news_pdf/070906_JS_replace_en.pdf|archive-date=21 July 2011|df=dmy-all}}
It was launched, along with the Australian Optus D3 satellite, by Arianespace.{{cite web|url=http://www.satnews.com/cgi-bin/display_story.cgi?number=2044443551|title=Arianespace & JSAT Culminate Contract For JCSAT-12|publisher=Satnews Daily|access-date=2009-08-21|url-status=dead|archive-url=https://web.archive.org/web/20071005032053/http://www.satnews.com/cgi-bin/display_story.cgi?number=2044443551|archive-date=5 October 2007|df=dmy-all}} An Ariane 5ECA rocket was used for the launch, which occurred from ELA-3 at the Guiana Space Centre in Kourou, French Guiana. The launch took place at 22:09 GMT on 21 August 2009, at the start of a 60-minute launch window.
JCSAT-12 separated from its carrier rocket into a geosynchronous transfer orbit, from which raise itself to geostationary orbit using a LEROS-1C apogee motor. It has a design life of fifteen years, and carries forty two transponders; twelve G/H band, and thirty J band (US IEEE C and Ku bands respectively).{{cite web|url=http://www.arianespace.com/news-mission-update/2009/621.asp|title=Preparations continue with the JCSAT-12 and Optus D3 payloads for Ariane 5's next launch|date=2009-08-12|work=Mission Update|publisher=Arianespace|access-date=2009-08-21}}
See also
{{Portal|Spaceflight}}
References
{{reflist}}
{{Orbital launches in 2009}}
{{JCSAT}}
{{Use British English|date=January 2014}}
{{Use dmy dates|date=January 2014}}
{{DEFAULTSORT:Jcsat-12}}
Category:Spacecraft launched in 2009
Category:Satellites using the A2100 bus