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Launch Success of H-IIA Launch Vehicle No. 26
with "Hayabusa2" Onboard

December 3, 2014 (JST)

Mitsubishi Heavy Industries, Ltd.
Japan Aerospace Exploration Agency (JAXA)

Mitsubishi Heavy Industries, Ltd. and the Japan Aerospace Exploration Agency (JAXA) successfully launched the H-IIA Launch Vehicle No. 26 (H-IIA F26) with the Asteroid Explorer “Hayabusa2” onboard at 1:22:04 p.m. on December 3, 2014 (Japan Standard Time, JST) from the Tanegashima Space Center. The launch vehicle flew as planned, and at approximately one hour, 47 minutes and 21 seconds after liftoff, the separation of the Hayabusa2 to earth-escape trajectory was confirmed.

With a launch success rate for H-IIA/B launch vehicles at 96.7%, this launch confirms the quality and reliability of the H-IIA/B.

The Asteroid Explorer "Hayabusa2" is a successor to the "Hayabusa", which verified various new exploration technologies and returned to Earth in June 2010. The "Hayabusa2" is setting out on a journey to clarify the origin and evolution of the solar system as well as life matter. The "Hayabusa2" will find out more about the world.

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-IIA F26.

H-IIA Launch Vehicle No.26 Flight Sequence (Quick Estimation)

EventActual value (Quick review)*1
1. Liftoff 0 min. 0 sec.
2. SRB-A burnout *2 1 min. 33 sec.
3. SRB-A jettison *3 1 min. 47 sec.
4. Payload fairing jettison 4 min. 11 sec.
5. First stage main engine cutoff (MECO) 6 min. 36 sec.
6. 1st and 2nd stages separation 6 min. 44 sec.
7. Second stage engine lock-in (SELI1) 6 min. 54 sec.
8. Second stage engine cutoff (SECO1) 11 min. 20 sec.
9. Second stage engine lock-in (SELI2) 1 hour 39 min. 26 sec.
10. Second stage engine cutoff (SECO2) 1 hour 43 min. 31 sec.
11. Hayabusa2 separation 1 hour 47 min. 21 sec.
12. SHINEN2 separation 1 hour 54 min. 1 sec.
13. ARTSAT2-DESPATCH separation 1 hour 58 min. 11 sec.
14. PROCYON separation 2 hour 2 min. 21 sec.

*1 Quick estimation value prior to the detailed estimation
*2 When the combustion chamber pressure becomes 10% against the largest combustion pressure.
*3 The definition of SRB-A jettison is the separation of the rear brace.