H-IIA

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H-IIA

H-IIA rocket
Fact sheet
Function	Launch vehicle
Manufacturer	Mitsubishi Heavy Industries
Country of origin	Japan
Size
Height	53 m (173 ft)
Diameter	4 m (13.1 ft)
Mass	285,000 kg (628,000 lb)
Stages	2
	Capacity
Payload to LEO	202: 10,000 kg 2024: 11,730 kg (202: 22,000 lb 2024: 25,860 lb)
Payload to GTO	202: 4,100 kg 2024: 5000 kg (202: 9,000 lb 2024: 11,000 lb)
Launch History
Status	Active
Launch Sites	LC-Y, Tanegashima
Total launches	12 (202: 3, 204: 1, 2022: 2 , 2024: 6)
Successes	11 (202: 3, 204: 1, 2022: 2 , 2024: 5)
Failures	1 (2024)
Maiden flight	H-IIA 202: 29 August 2001 204: 18 December 2006 2022: 26 February 2005 2024: 4 February 2002
Boosters (H-IIA 2022/2024) - Castor 4AXL
No boosters	2 - 4
Engines	1 Solid
Thrust	745 kN
Specific Impulse	283 sec
Burn time	60 seconds
Fuel	Solid
Boosters (All Variants) - SRB-A
No boosters	2 - 4
Engines	1 Solid
Thrust	(2,250 kN)
Specific Impulse	280 sec
Burn time	120 seconds
Fuel	Solid
First Stage
Engines	1 LE-7A
Thrust	1,098 kN (246,840 lbf)
Specific Impulse	440 sec
Burn time	390 seconds
Fuel	LOX/LH2
Second Stage
Engines	1 LE-5B
Thrust	137 kN (30,798 lbf)
Specific Impulse	447 sec
Burn time	534 seconds
Fuel	LOX/LH2

The H-IIA is a family of liquid-fuelled rockets providing an expendable launch system for the purpose of launching satellites into geostationary orbit. It is manufactured by Mitsubishi and ATK Thiokol for the Japan Aerospace Exploration Agency, or JAXA. Launches occur at the Tanegashima Space Center.

The H-IIA is a derivative of the earlier H-II rocket, though has been substantially redesigned to improve reliability and minimize costs, after the H-II proved to be expensive and failure-prone. There are four different variants of the H-IIA for various purposes.

The H-IIA was first launched on August 29, 2001, and the sixth launch on November 29, 2003 failed. The rocket was intended to launch two reconnaissance satellites to observe North Korea. JAXA announced that launches would resume in 2005, and indeed the first successful flight took place on February 26 with the launch of MTSAT-1R.

Japan's eighth H-IIA launch was successful as well when the Advanced Land Observation Satellite (ALOS) was lofted into orbit to carry out a remote sensing mission in January 2006.

The first launch for a mission beyond Earth orbit will be in August 2007 for the SELENE moon mission.

As of February 2007, 11 attempts of 12 launches were successful.

JAXA now foresees increasing the diameter of the main cryogenic tank of the launcher in order to augment its performance. The resulting launcher, H-IIB, will fly in 2009.

Contents 1 SPEC and Variants 2 H-IIA flights 3 References 4 External links

[edit] SPEC and Variants

Designation	Mass (tonnes)	Payload (tonnes to GTO)	Addon modules
H-IIA202	285	4	2 Solid rocket boosters (SRBs)
H-IIA2022	316	4.5	2 SRBs + 2 Solid Strap-on Boosters (SSBs)
H-IIA2024	347	5	2 SRBs + 4 SSBs
H-IIA204	445	6	4 SRBs
H-IIA212 (cancelled)	403	7.5	2 SRBs + 1 Liquid Strap-On Booster (LRB)
H-IIA222 (cancelled)	520	9.5	2 SRBs + 2 LRBs

[edit] H-IIA flights

Date (UTC)	Flight	Model	Payload	Result
August 29, 2001 07:00:00	TF1	HIIA202	VEP 2	Success
			LRE
February 4, 2002 02:45:00	TF2	HIIA2024	VEP 3	Success
			MDS1 (Tsubasa)
			DASH
September 10, 2002 08:20:00	F3	HIIA2024	USERS	Success
			DRTS (Kodama)
December 14, 2002 01:31:00	F4	HIIA202	ADEOS 2	Success
			WEOS
			FedSat 1
			Micro-Lab-Sat 1
March 28, 2003 01:27:00	F5	HIIA2024	IGS-Optical 1	Success
			IGS-Radar 1
November 29, 2003 04:33:00	F6	HIIA2024	IGS-Optical 2	Failure
			IGS-Radar 2
February 26, 2005 09:25:00	F7	HIIA2022	MTSat-1R	Success
January 24, 2006 01:33:00	F8	HIIA2022	ALOS	Success
February 18, 2006 06:27:00	F9	HIIA2024	MTSat-2	Success
September 11, 2006 04:35:00	F10	HIIA202	IGS-Optical 3	Success
December 18, 2006 06:32:00	F11	HIIA204	ETS-VIII	Success
February 24, 2007 04:41:00	F12	HIIA2024	IGS-Radar 3	Success
			IGS-Optical 4

[edit] References

• Japan Prepares for Crucial Rocket Launch. SPACE.com. Retrieved on 16 February 2005.
• H-IIA Expendable Launch Vehicle. SPACEandTECH. Retrieved on February 16, 2005.

[edit] External links

• Encyclopedia Astronautica page
• H-IIA English page
• JAXA English page
• H-llA LAUNCH SERVICES
• JAXA Launch Schedule
• Tanegashima Space Center
• "Tanegashima Space Center" -- VISIT JAXA --
• Failed Launch, 11-29-2003
• Image
• Launch 2 Image