Press Release


Launch Result of HTV Demonstration Flight
aboard H-IIB Launch Vehicle Test Flight (H-IIB TF1)

September 11, 2009 (JST)

Japan Aerospace Exploration Agency
Mitsubishi Heavy Industries, Ltd.

The Japan Aerospace Exploration Agency (JAXA) launched the H-II Transfer Vehicle (HTV) Demonstration Flight aboard the H-IIB Launch Vehicle Test Flight (H-IIB TF1) at 2:01:46 a.m. on September 11, 2009 (Japan Standard Time, JST) from the Tanegashima Space Center. The launch azimuth was 108.5 degrees.
The launch vehicle flew smoothly, and, at about 15 minutes and 10 seconds after liftoff, the separation of the HTV Demonstration Flight 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 TF1.
At the time of the launch, the weather was cloudy, a wind speed was 1.3 meters/second from the west and the temperature was 24.5 degrees Celsius.

H-IIB Launch Vehicle Test Flight (H-IIB TF 1)
Launch Sequence (Quick Review)

EventActual value
(Quick review)*1
Scheduled value*2
(Predicted value based on actual measurement data)
1. Liftoff
2. Solid rocket booster (SRB-A) pair burnout
3. Solid rocket booster (SRB-A) 1st pair jettison
4. Solid rocket booster (SRB-A) 2nd Pair jettison
5. Payload fairing jettison
6. Main engine cutoff (MECO)
7. 1st and 2nd stages separation
8. Second stage engine ignition (SEIG)
9. Second stage engine cutoff (SECO)
10. HTV separation
0 second
1 min. 50 seconds
2 min. 5 sec.
2 min. 8 sec.
3 min. 42 sec.
5 min. 47 sec.
5 min. 56 sec.
6 min. 3 sec.
14 min. 19 sec.
15 min. 10 sec
0 second
1 min. and 49 sec.
2 min. and 4 sec.
2 min. 7 sec.
3 min. 37 sec.
5 min. 44 sec.
5 min. 52 sec.
5 min. 59 sec.
14 min. 16 sec.
15 min. 6 sec.

(*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 TF1 engines. Therefore, they are slightly different from the values in the Launch Plan.