Saturday, July 15, 2000

STS-72 (Endeavour)

 1996-001A


The first launch of 1996 was carried out with less publicity than usual because of continuing effects of the government shutdown. Endeavour took off at night, in an unusual launch profile which avoided the need for a single engine TAL abort mode (RTLS and Press to ATO covering the entire ascent). It entered an elliptical 66 x 455 km orbit, and a smaller than usual OMS 2 burn raised the perigee to 180 km.

The EDFT-3 spacewalks made use of an array of ISS EVA equipment stowed in the forward bays. DTO 671 was to evaluate ISS EVAs; DTO 672 tested the electronic cuff checklist, and DTO 833 studied the thermal properties of the improved EMU suit; DTO 1210 covered EVA operations and training. During EVA-1, Chiao and Barray tested the portable work platform and the Rigid Umbilical, as well as foot retsraints. On EVA-2 they practised with connectors and a slidewire, and did force measurements with CLAS, installing the PDAP.


STS-72 
 

DateTimeEventOrbit  

1995 Dec 1  
Roll to VAB 
1995 Dec 4 Mate to ET/SRB 
1995 Dec 6   Roll to LC39B 
1996 Jan 11  0941:00  Launch by Shuttle (STS-72)  
 0943:04  SRB sep 
 0949:28  MECO   
 0949:46  ET sep  66 x 455 x 28.5 
 1024:30  OMS 2 1:11 35.4 m/s 90.94 180 x 460 x 28.5 
 1025:41  OMS 2 CO  
 1057:08  PLBD open 
 1245RCS adjust  
 1500   91.01 186 x 460 x 28.45 
1996 Jan 12  0500   91.00 187 x 460 x 28.45 

0738  RCS burn to avoid MSTI 2  91.04 190 x 460 x 28.45 
  
 1340:02  OMS-3 (L) 2:36 78.0m/s 
 1342:37  OMS-3 CO  
 1430   93.84 458 x 466 x 28.45 
 2200   93.84 458 x 465 x 28.45 
1996 Jan 13  0249:45  Orbit raise OMS-4 (R) NH-S 3m/s 12s  
 0249:58  OMS 4 CO 
 0400   94.01 469 x 472 x 28.45 
 0318?  RCS Phasing burn 1m/s  
 0556:07  RCS NCC 0.4m/s 
 0643:49 RCS TI burn 1m/s 
 0724? MC1 
 0734  MC2 
 0744  MC3 
 0754  MC4 
 0800  Rendezvous with SFU, +Rbar 
 0935  SFU panel 1 ejected 
 0947  SFU panel 2 ejected 
 1057:19  RMS grapple SFU 
 1139:30  RMS berth SFU 
 1150? RMS ungrapple SFU 
 1437:13  OMS-5 Orbit lower 93s 47m/s for OAST 
 1437:47  OMS-5 CO 
 1524:29  OMS-6 Orbit lower 93s 47m/s for OAST 
 1526:02  OMS-6 CO 
 2000   90.67 303 x 311 x 28.45 
1996 Jan 14  0800   90.67 302 x 311 x 28.45 
 1042RMS grapple OAST Flyer 
 1057:13 RMS unberth OAST Flyer 
 1132:33  RMS deploy OAST Flyer 
 1138:30  Sep 1 burn 
 1208  Sep 2 burn 
 2200   90.69 304 x 313 x 28.45 
1996 Jan 15  0525  EVA-1 depress 
 0535  EVA-1 on battery 
 0540  EVA-1 hatch open (Leroy Chiao) 
 0745Leroy Chiao evaluate PWP, 
 0920deploy RU across PLB 
 1005 eval Util Box 
 1132  Ingress, hatch closed 
 1144  Off battery, repress (NASA 6:09:19, JCM 6:19) 
 1230   90.70 303 x 313 x 28.5 
 1450NC3 burn 
 1530   90.60 299 x 309 x 28.5 
 1843RCS NC0 for OAST-flyer phasing  
1996 Jan 16  0500   90.57 292 x 312 x 28.45 
 0631:18  RCS NCC 0.3m/s 
 0728:45  RCS TI 1.5m/s 
 0802MC1 
 0821  MC2 
 0831  MC3 
 0841  MC4 
 0845  Arrive at OAST R-bar, rendezvous  
 0947:15  RMS grapple OAST Flyer 
 1014:02  RMS berth OAST Flyer 
 1015:40  OAST latched 
 1037RMS ungrapple OAST 
 1115   90.65 301 x 310 x 28.45 
1996 Jan 17  0534  EVA-2 depress 
 0540  EVA-2 NASA start 
 0554  Hatch open 
 0635Utility box eval 
 0710PDAP install 
 0752CLAS evaluation 
 0915TERA (Temporary Equpt. Restraint Aid) eval. 
 1020Slidewire and PWP eval 
 1046cold thermal eval of EMU 
 1225  Ingress 
 1234  EVA-2 end (Chiao, Scott) NASA 6:53:41 JCM 7:00 
1996 Jan 18  0600   90.64 301 x 310 x 28.45 
1996 Jan 19  0600   90.64 301 x 310 x 28.45 
1996 Jan 20  0403  PLBD closed 
 0641:23  Deorbit 2:36 82.9 m/s  20 x 310 x 28.5 
 0644:00  OMS DO CO 
 0710:01  Entry  
 0741:41  MGTD KSC RW15 
 0741:43  Drag chute deploy
 0741:51  NGTD 
 0742:47  Wheels stop 
 1120OPF/3 

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