JCSAT-11
{{Infobox spaceflight
| name = JCSAT-11
| names_list =
| image =
| image_caption =
| image_alt =
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| mission_type = Communication
| operator = SKY Perfect JSAT Group
| Harvard_designation =
| SATCAT =
| website =
| mission_duration =
| spacecraft = JCSAT-11
| spacecraft_type =
| spacecraft_bus = A2100AX
| manufacturer = Lockheed Martin
| launch_mass = {{convert|4007|kg|abbr=on}}
| BOL_mass =
| landing_mass =
| dry_mass =
| payload_mass =
| dimensions = {{convert|27|x|9|m|abbr=on}} with solar panels and antennas deployed.
| power =
| launch_date = {{start date|2007|09|05|22|43|10|7=Z}}
| launch_rocket = Proton-M/Briz-M
| launch_site = Baikonur Site 200/39
| launch_contractor = ILS
| deployment_from =
| deployment_date =
| entered_service =
| disposal_type =
| deactivated =
| destroyed = Launch failure
| last_contact =
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| orbit_slot =
| orbit_semimajor =
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| orbit_RAAN =
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| orbit_epoch =
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| apsis =
| trans_band = 18 × 27 Mhz and 12 × 36 MHz Ku band
12 × 36 MHz C band
| trans_frequency =
| trans_bandwidth = 1,350 MHz
| trans_capacity =
| trans_coverage =
| trans_TWTA = Ku band 127 W
C band 48 W
| trans_EIRP =
| trans_HPBW =
| programme = JSAT
| previous_mission = JCSAT-3A
| next_mission = JCSAT-RA
| insignia =
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}}
JCSAT-11, was a geostationary communications satellite ordered by JSAT Corporation (now SKY Perfect JSAT Group) which was designed and manufactured by Lockheed Martin on the A2100 platform. The satellite was designated to be used as an on-orbit, but was lost on launch failure.
Satellite description
The spacecraft was designed and manufactured by Lockheed Martin on the A2100AX satellite bus. It had a launch mass of {{convert|4007|kg|abbr=on}} and a 15-year design life. A near copy of JCSAT-3A, it was to be used as an on orbit spare. As most satellites based on the A2100 platform, it uses a {{convert|460|N|abbr=on}} LEROS-1C LAE for orbit raising. Its solar panels span {{convert|27|m|abbr=on}} when fully deployed and, with its antennas in fully extended configuration it is {{convert|9|m|abbr=on}} wide.
Its payload is composed of eighteen 27 MHz and twelve 36 MHz Ku band plus twelve C band transponders, for a total bandwidth of 1,350 MHz. Its high-power amplifiers had an output power of 127 Watts on Ku band and 48 Watts on C band.
History
On October 3, 2005, JSAT ordered an A2100AX based satellite from Lockheed Martin, JCSAT-11. It would be an almost copy of JCSAT-3A, with a C band and Ku band payload. It was expected to be launched in 2007 to act as a backup for the whole JSAT fleet.
The almost 19-year streak of successful JCSAT launches was ended when a Proton-M/Briz-M failed to orbit JCSAT-11 on September 5, 2007. A damaged pyro firing cable on the interstage truss prevented the second stage from controlling its direction, and the rocket and its payload crashed into the Kazakhstan steppes. Being lucky in misfortune, JCSAT-11 was simply an on-orbit backup and thus it had no operational impact on the fleet.
The same day of the launch failure, JSAT placed an order with Lockheed for an identical replacement, JCSAT-12, for launch in 2009. On September 19, 2007, they closed a deal with Arianespace for a launch slot with an Ariane 5 for its launch.
References
{{Reflist|2|refs=
{{cite web |url=http://www.defense-aerospace.com/articles-view/release/3/86221/arianespace-wins-japanese-launch-contract.html |title=Arianespace to Launch Japanese Satellite JCSAT-12 |publisher=Arianespace |website=Defense-aerospace.com |date=September 19, 2007 |access-date=2016-08-05 |archive-date=2021-11-21 |archive-url=https://web.archive.org/web/20211121134554/http://www.defense-aerospace.com/articles-view/release/3/86221/arianespace-wins-japanese-launch-contract.html |url-status=dead }}
{{cite web |url=http://www.icaa.eu/lockheed-martin/2005/10/03/jsat-corporation-awards-lockheed-martin-contract-third-a2100-satellite/ |title=JSAT Corporation Awards Lockheed Martin Contract For Third A2100 Satellite |publisher=Lockheed Martin Space Systems |website=Icaa.eu |date=October 3, 2005 |access-date=2016-08-05}}
{{cite web |url=http://www.skyperfectjsat.co.jp/load_pdf.php?pTb=t_annual_&pRi=30&pJe=1 |title=Who we are |publisher=SSKY Perfect JSAT Group |date=2012-08-03 |format=PDF |access-date=2016-08-02 |archive-date=2016-09-08 |archive-url=https://web.archive.org/web/20160908161227/http://www.skyperfectjsat.co.jp/load_pdf.php?pTb=t_annual_&pRi=30&pJe=1 |url-status=dead }}
{{cite web |url=http://www.jsat.net/en/contour/jcsat-ra.html |title=JCSAT-RA |publisher=SKY Perfect JSAT Group |access-date=August 9, 2016 |archive-date=August 18, 2016 |archive-url=https://web.archive.org/web/20160818203146/http://www.jsat.net/en/contour/jcsat-ra.html |url-status=dead }}
}}
{{Portal|Spaceflight}}
{{JCSAT}}
{{Orbital launches in 2007}}
Category:Communications satellites in geostationary orbit
Category:Satellites using the A2100 bus
Category:Spacecraft launched in 2007