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.
|Event||Actual value |
(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 lock in (SELI)||6 min. 9sec.||6 min. 5 sec. (*5)|
|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.|