JAXA Press Release:
January 22, 2011 (JST)
Japan Aerospace Exploration Agency
Mitsubishi Heavy Industries, Ltd.
The Japan Aerospace Exploration Agency (JAXA) launched the H-IIB Launch Vehicle No.2 (H-IIB F2) with the KOUNOTORI2 (HTV2, a cargo transfer vehicle to the International Space Station) onboard at 2:37:57 p.m. on January 22 (Sat.,) 2011 (Japan Standard Time, JST) from the Tanegashima Space Center.
The launch vehicle flew smoothly, and, at about 15 minutes and 13 seconds after liftoff, the separation of the KOUNOTORI2 was confirmed.
We would like to express our profound appreciation for the cooperation and support of all related personnel and organizations that helped contribute to the successful launch of the H-IIB F2.
At the time of the launch, the weather was clear, a wind speed was 8.3 meters/second from the north-west and the temperature was 10.6 degrees Celsius.
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H-IIB Launch Vehicle No. 2 (H-IIB F2)
Launch Sequence (Quick Review)
[table="head"]
Event
|
Actual value
(Quick review)*1
|
Scheduled value*2
(Predicted value based on
actual measurement data)
1. Liftoff|0 second|0 second
2. Solid rocket booster (SRB-A) pair burnout *3|1 min. 52 seconds|1 min. 57 sec.
3. Solid rocket booster (SRB-A) 1st pair jettison *4|2 min. 6 sec.|2 min. 7 sec.
4. Solid rocket booster (SRB-A) 2nd Pair jettison *4|2 min. 9 sec.|2 min. 10 sec.
5. Payload fairing jettison|3 min. 45 sec.|3 min. 40 sec.
6. Main engine cutoff (MECO)|5 min. 50 sec.|5 min. 46 sec.
7. 1st and 2nd stages separation|5 min. 58 sec.|5 min. 54 sec.
8. Second stage engine ignition (SELI)|6 min. 9sec.|6 min. 1 sec.
9. Second stage engine cutoff (SECO)|14 min. 23 sec.|14 min. 15 sec.
10. HTV separation|15 min. 13 sec|15 min. 5 sec.[/table]
(*1) The values are based on quick report results without detailed data evaluation.
(*2) The values are updated ones based on actual measurement data such as thrust characteristics which are unique for the H-IIB F2 engines. Therefore, they are slightly different from the values in the Launch Plan
(*3) The definition of SRBA burnout is when the combustion chamber presser becomes 2% against the largest combustion pressure.
(*4) The definition of SRBA jettison is to cut the thrust struts.
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JAXA Press Release:
January 22, 2011 (JST)
Japan Aerospace Exploration Agency (JAXA)
Mitsubishi Heavy Industries, Ltd.
The Japan Aerospace Exploration Agency (JAXA) would like to announce that we have conducted the second stage controlled re-entry test for the H-IIB Launch Vehicle No.2 by re-igniting the second stage engine for the second time as scheduled after separating its payload, the KOUNOTORI2 (HTV2, a cargo transporter to the International Space Station.)
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JAXA:
KOUNOTORI2/H-IIB Launch Veicle No.2 Special Site > Mission photo, Movie
Launch of KOUNOTORI2/H-IIB F2 Digest:
H-IIB on the ML is moving from VAB to LP2:[table="head"]{colsp=2}
Click on the images to view larger versions

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[/table]
H-IIB Launch Vehicle No. 2 launched:[table="head;width=100"]{colsp=3}
Click on the images to view larger versions
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JAXA:
HTV-2 Mission News:
*All times are Japan Standard Time (JST)
KOUNOTORI2 Initiates Communications with Tsukuba (HTV MCR) (January 22, 2011)
The KOUNOTORI2 has successfully established communications with the NASA's TDRS, and initiated communications with the HTV Mission Control Room (HTV MCR) at the Tsukuba Space Center (TKSC). The KOUNOTORI2 also established two-axis attitude.
KOUNOTORI2 Establishes Three-Axis Attitude (January 22, 2011)
The KOUNOTORI2 has successfully established three-axis attitude at 3:36 p.m. January 22. KOUNOTORI's system self-checks are ongoing in preparation for its first phase adjusting maneuver (Phase Maneuver1: PM1) scheduled at 10:08 p.m. January 22.
KOUNOTORI2 Completes the First Phase Maneuver (PM1) (January 22, 2011)
The KOUNOTORI2 completed the first Phase Maneuver (PM1) at 10:13 p.m., January 22. Next HTV2 mission status update will be posted on Monday morning, January 24, 2011.
Discovery News:
JAXA's HTV-2 Launches High School Experiment.