Author Topic: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)  (Read 116616 times)

Offline Fuji

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Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
« Reply #300 on: 09/17/2013 03:09 AM »
The preliminary as-flown event times at http://www.jaxa.jp/press/2013/09/20130914_epsilon_j.html
are interesting - most events happened as expected but the post-boost-stage burn times are QUITE different

JAXA said, that is role of the PBS. PBS is working correctly   ;)

Online yoichi

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Offline input~2

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Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
« Reply #302 on: 09/17/2013 03:36 PM »
English version http://www.jaxa.jp/press/2013/09/20130914_epsilon_e.html
http://www.jaxa.jp/press/2013/09/20130915_hisaki_e.html

Launch Result of Epsilon-1 with SPRINT-A aboard
                                              September 14, 2013 (JST)
                                              Japan Aerospace Exploration Agency (JAXA) 

Japan Aerospace Exploration Agency launched the first Epsilon Launch Vehicle (Epsilon-1) with the Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere (SPRINT-A) onboard at 2:00 p.m. on September 14 (Sat.), 2013 (Japan Standard Time, JST) from the Uchinoura Space Center.
 
 The launch vehicle flew smoothly, and, at about 61 minutes and 39 seconds after liftoff, the separation of the SPRINT-A 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 launch of the Epsilon-1.
 
 At the time of the launch, the weather was cloudy, a wind speed was 8.1 meters/second from the east-north-east and the temperature was 27.2 degrees Celsius.
 

   
  Epsilon Launch Vehicle (Epsilon-1)
 Launch Sequence (Quick Review)
 
EventActual value
 (Quick review)*1
Predicted value based on
 actual measurement data
1. Liftoff
 2. First stage solid motor burnout*
 3. Payload fairing separation
 4. First and second stages separation
 5. Second stage solid motor ignition
 6. Second stage solid motor burnout*
 7. Second and Third stages separation
 8. Third stage solid motor ignition
 9. Third stage solid motor burnout*
 10. Third stage/Post Boost Stage (PBS) separation
 11. PBS propulsion system first ignition
 12. PBS propulsion system first cutoff
 13. PBS propulsion system second ignition
 14. PBS propulsion system second cutoff
 15. SPRINT-A separation
 
0 min. 0 sec.
 1 min. 54 sec.
 2 min. 31 sec.
 2 min. 40 sec.
 2 min. 45 sec.
 4 min. 24 sec.
 10 min. 23 sec.
 10 min. 27 sec.
 11 min. 56 sec.
 16 min. 47 sec.
 21 min. 26 sec.
 25 min. 53 sec.
 54 min. 24 sec.
 59 min. 19 sec.
 61 min. 39 sec.
0 min. 0 sec.
 1 min. 52 sec.
 2 min. 30 sec.
 2 min. 41 sec.
 2 min. 45 sec.
 4 min. 27 sec.
 10 min. 24 sec.
 10 min. 28 sec.
 11 min. 57 sec.
 16 min. 48 sec.
 19 min. 8 sec.
 29 min. 58 sec.
 53 min. 50 sec.
 60 min. 30 sec.
 61 min. 40 sec.
*1 The values are based on quick report results before detailed data evaluation.


HISAKI (SPRINT-A)
Orbit Calculation Result and  Critical Operation Period Completion
 
                                                                              September 15, 2013 (JST)
                                                                              Japan Aerospace Exploration Agency (JAXA)

The Japan Aerospace Exploration Agency (JAXA) confirmed that the Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere "HISAKI" (SPRINT-A) was injected into the planned orbit after its orbit calculation as follows.
 
 
Orbit Calculation Result
Actual valuePlanned value
Apogee altitude1156.8 km1150 km
Perigee altitude946.8 km950 km
Inclination29.7 deg30 deg
Period106.2 min106 min

 
 We have now completed the critical operation period for the HISAKI (SPRINT-A) after we successfully performed essential events including the planned orbit insertion, solar array paddle deployment, and sun acquisition.
 
 JAXA will take about two months to further confirm the status of the HISAKI (SPRINT-A) such as verifying the high-precision attitude control function that is imperative for planet observations.
 
 We would like to express our sincere appreciation to all the parties and personnel concerned for their support and cooperation with the HISAKI (SPRINT-A) launch and tracking control operations.

Online Galactic Penguin SST

Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
« Reply #303 on: 09/18/2013 04:21 PM »
A collection of narrow and wide shots of the launch:

Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline jcm

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Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
« Reply #304 on: 09/19/2013 01:05 AM »
The preliminary as-flown event times at http://www.jaxa.jp/press/2013/09/20130914_epsilon_j.html
are interesting - most events happened as expected but the post-boost-stage burn times are QUITE different

JAXA said, that is role of the PBS. PBS is working correctly   ;)

Yes, that's what I thought.

As expected, STRATCOM has swapped 39253 and 39255 so now the objects are Hisaki, PBS and stage 3  =
39253 39254, 39255 respectively
-----------------------------

Jonathan McDowell
http://planet4589.org

Offline Fuji

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Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
« Reply #305 on: 09/19/2013 07:01 AM »
For Epsilon fan  :)
 "Current status and future plan of the Epsilon rocket" March 7, 2013

This is Japanese material but many good information here.
http://www.isas.jaxa.jp/home/rikou/kogata_eisei/symposium/3rd/p_session/P53.pdf

Online Galactic Penguin SST

Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
« Reply #306 on: 09/24/2013 01:47 PM »
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

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