Monday, August 23, 2010

Shenzhou 7

 2008-047A


SZ-7 carried a crew of three: Zhai Zhigang, Liu Buoming, and Jing Haipen. Zhai Zhigang is the EVA astronaut in a Feitian; Liu Buoming wears an Orlan inside the depressurized OM.

Zhai is zhilingzhang ('commander'; the word is similar in meaning to zhihuizhang). Liu is guidaocang hangtianyuan ('orbital module astronaut') and Jing is fanhuicang zhishou hangtianyuan ('descent module safeguard astronaut' or 'descent module monitor astronaut').

Mass 7890 kg. EVA suit 120 kg.

Subsatellite mounted on nose of OM.

From Chen Lan:

There were two EVA suits onboard. The EVA taikonaut wore the Chinese made Feitian suit and another member inside the OM will wear the Russian Orlan M-42. These two suits are with slight differences, judging from available photos. China signed the agreement with Russia in April 2004 to purchase 9 Orlan suits, among which 3 flight suits, 4 neutral pool training suits and 2 low-pressure training suits. - Solar panels, 16 thrusters, all sub-systems used for independent flight are removed. New additions include five gas bottles and the subsatellite on top of the OM, two external cameras, handrails, as well as an exposure experimental device to be retrieved by the taikonaut. - The contingency plan includes the single person EVA. -

The subsatellite,

\uni{ 神舟七号伴随卫星}{ }
(Shenzhou qihao bansui weixing) weighs 40kg and with diameter of 40cm. It will be released after the EVA. After photographing SZ-7, it will move away to a distance about several kilometers, and will test "satellite fleet" technology with the OM in next a few month. - China will launch Tiangong-1, 2, 3 spacecraft between 2010 and 2015. TG-1 will be the docking target (probably a modified OM) and TG-2 and 3 will be the 8t class mini-station, or the Spacelab. There will be two unmanned vehicles (SZ-8 and 9) and 5 manned ships to visit these TGs during this period.


SZ7 
 

DateTimeEventOrbit  

2008 Sep 25  1310:05  Launch by CZ-2F  JQ 
  T+2:00 LES sep 
  T+2:16 SRM burnout, sep 
  T+2:38 St 1 MECO 
  T+2:39 St 1 sep, St 2 burn 
  T+3:20 Fairing sep 
  T+7:41 St 2 MECO 
 1319  T+9:43 Stage 2 VECO 
 1320  Stage 2 sep  200 x 330 x 42.4 
 2005  Perigee raise  330 x 336 x 42.4 
2008 Sep 27  
 0810?  Resume depress at 70 kPa? 
 0815?  OM depress 
 0830?  Ready for HO 
 0830?  Depress complete
 0838  HO (dp 2kPa)  

0839  Hatch temp close 
 0840  Hatch open 
 0843  Zhai SEVA 
 0844  Zhai egress fully 
 0844  EVA begins
 0847  Liu SEVA; Zhai waving PRC flag 
 0850  Zhai retrieves materials sample 
 0857  Ingress 
 0858  EVA complete 
 0900  Hatch closed 
 0912  Go for repress 
 0915? Repress 
 0926  OM at 40 kPa 
 0950  OM fully repress 
 1127  Subsat release 
2008 Sep 28    
 0848  OM sep 
 0851:16  7.451 -24.075 339 km DO burn  
 0853:18  13.664 -19.287 336 km DO CO 
 0913  Modules sep  
 0919  Reentry blackout 
 0919  On drogue parachutes  
 0924  Main parachute deployed
 0936:40  Landed 42.278N 111.355E 

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