H-IIA#Variants

The base configuration, and the only remaining active configuration of an H-IIA launch vehicle, uses two SRB-A type solid rocket boosters (SRBs). The launch capability of the H-IIA launch vehicle could be enhanced by adding an additional two SRB-A boosters or up to four Castor 4AXL solid strap-on boosters (SSBs).

The models are indicated by three or four numbers following the prefix "H2A":{{cite web|url=http://www.jaxa.jp/pr/brochure/pdf/01/rocket01.pdf|title=H-IIA Launch Vehicle |access-date=2007-09-15|publisher=JAXA|page=2|url-status=dead|archive-url=https://web.archive.org/web/20080228013323/http://www.jaxa.jp/pr/brochure/pdf/01/rocket01.pdf|archive-date=2008-02-28}}

• The first number in the sequence indicates the number of stages (always 2)
• The second number in the sequence indicates the number of liquid rocket boosters (a planned addition to the launch vehicle that was canceled, so always 0)
• The third number in the sequence indicates the number of SRB-A type solid rocket boosters (2 or 4)
• The fourth, optional, number in the sequence indicates the number of Castor 4AXL solid strap-on boosters (2 or 4)

;Launch system status:

{{legend|#bbffbb|Active}}

{{legend|#f9f9f9|Discontinued}}{{legend|#e0e0e0|Cancelled}}

{{main|List of H-II and H3 launches}}

The first H-IIA was successfully launched on 29 August 2001, followed by a string of successes.

The sixth launch on 29 November 2003, intended to launch two IGS reconnaissance satellites, failed. JAXA announced that launches would resume in 2005, and the first successful flight took place on 26 February 2005 with the launch of MTSAT-1R.

The first launch for a mission beyond Earth orbit was on 14 September 2007 for the SELENE Moon mission. The first foreign payload on the H-IIA was the Australian FedSat-1 in 2002. As of March 2015, 27 out of 28 launches were successful.

A rocket with increased launch capabilities, H-IIB, is a derivative of the H-IIA family. H-IIB uses two LE-7A engines in its first stage, as opposed to one in H-IIA. The first H-IIB was successfully launched on 10 September 2009.

For the 29th flight on 24 November 2015, an H-IIA with an upgraded second stage{{Cite web|url=http://global.jaxa.jp/press/2015/11/20151124_h2af29.html|title=Launch Result of Telstar 12 VANTAGE by H-IIA Launch Vehicle No. 29|publisher=JAXA|date=24 November 2015|access-date=30 November 2015}} launched the Telstar 12V satellite, the first commercial primary payload for a Japanese launch vehicle.{{cite web|url=http://www.nasaspaceflight.com/2015/11/japanese-h-iia-telstar-12v-launch/|title=Japanese H-IIA successfully lofts Telstar 12V|publisher=NASASpaceflight|author=William Graham|date=23 November 2015 |access-date=30 November 2015}}

{{Portal|Spaceflight}}

• Comparison of orbital launchers families
• Comparison of orbital launch systems

Notes

{{Reflist|30em}}

Sources

{{Refbegin}}

• {{cite web|title=Japan Prepares for Crucial Rocket Launch|work=SPACE.com|url=http://www.space.com/missionlaunches/ap_jaxa_h2a_050209.html|access-date=16 February 2005}}
• {{cite web|title=H-IIA Expendable Launch Vehicle|work=SPACEandTECH|url=http://www.spaceandtech.com/spacedata/elvs/h2a_sum.shtml|access-date=February 16, 2005|url-status=usurped |archive-url=https://web.archive.org/web/20120204034049/http://www.spaceandtech.com/spacedata/elvs/h2a_sum.shtml|archive-date=February 4, 2012}}

{{Refend}}

{{commons category|H-IIA}}

• [http://h2a.mhi.co.jp/en/ H-IIA LAUNCH SERVICES] {{Webarchive|url=https://web.archive.org/web/20171012201800/http://h2a.mhi.co.jp/en/ |date=12 October 2017 }}, Mitsubishi Heavy Industries
• [https://global.jaxa.jp/projects/rockets/h2a/index.html JAXA H-IIA English page]
• [https://web.archive.org/web/20070321160909/http://www.jaxa.jp/index_e.html JAXA English page]
• [http://www.jaxa.jp/projects/in_progress_e.html JAXA Launch Schedule] {{Webarchive|url=https://web.archive.org/web/20130511083231/http://www.jaxa.jp/projects/in_progress_e.html |date=11 May 2013 }}
• [http://www.jaxa.jp/about/centers/tnsc/index_e.html Tanegashima Space Center] {{Webarchive|url=https://web.archive.org/web/20061208095420/http://www.jaxa.jp/about/centers/tnsc/index_e.html |date=8 December 2006 }}
• [https://web.archive.org/web/20050404015815/http://visit.jaxa.jp/tanegashima/index_e.html "Tanegashima Space Center"– VISIT JAXA --]
• [https://web.archive.org/web/20041015211458/http://www.astronautix.com/lvs/h2a.htm Encyclopedia Astronautica page]
• [http://spaceflightnow.com/h2a/f6/ Failed Launch, 11-29-2003]
• [http://www.spaceflightnow.com/h2a/f2/020201rocket.html Image]
• [http://www.spaceflightnow.com/h2a/f3/020908rocket.html Launch 2 Image]

{{Mitsubishi Heavy Industries}}

{{Expendable launch systems}}

{{Japanese launch systems}}

Category:Expendable space launch systems

Category:Mitsubishi Heavy Industries space launch vehicles

Category:Vehicles introduced in 2001

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