Saturday, November 12, 2005

STS-74 (Atlantis)

 1995-061A


The STS-74 mission was the second Mir docking mission. Delivered from Atlantis to Mir were 324 kg of equipment, 147 kg of food, 450 kg of water, 20 kg of N2, and 27 kg of O2 for a total of 967 kg.. From Mir to Atlantis came 9 kg of ESA equipment, 190 kg of RKA equipment, and 171 kg of NASA equipment for a total of 371 kg. This implies a net Atlantis mass decrease of 596 kg. (The SODB data shows 313 kg down and implies 455 kg up as well as the DM; but the contemporary PAO reports seem more likely to be reliable).


STS-74 mission events 
 

DateTimeEventOrbit  

1995 Oct 3  0720  Roll to VAB 
1995 Oct 4   Mate with ET/SRB 
1995 Oct 12  0406  Roll to LC39A 
1995 Nov 11   Scrub T-5m (WX) 
1995 Nov 12  1230:43 Launch  KSC LC39A 
 1232:47  SRB sep 
 1239:17  MECO  88.29 80 x 299 x 51.7 (OMS dV) 
 1239:35  ET sep 
 1312:35 OMS 2 2:11 64.9m/s  90.52 294 x 305 x 51.7 
 1314:46  OMS 2 CO  
 1357:23 PLBD open   
 1530:20  OMS-3 (R) 46s 12m/s 
 1602   90.92 299 x 339 x 51.6 
1995 Nov 13  0415NC2 burn (RCS?) 
 1513:55  NC3 OMS 4 40s 20m/s  91.95 346 x 394 x 51.6 
 1611:44  NC4 OMS 5 (L) 38s 9m/s 
1995 Nov 14  0546  RMS grapple Docking Module 
 0637  Unberth DM 
 0716Berth DM to ODS with RCS 
 0900RMS ungrapple DM 
 0941  HO to DM 
 1519  NC4 RCS 21s 1.5m/s 92.00 350 x 394 x 51.7 
1995 Nov 15  0153:04  NC5 OMS-6 (R) 33s 8m/s  92.29 379 x 394 x 51.6 
 0326:43  OMS-7 (L) TI 9s 3m/s 92.39 387 x 396 x 51.7 
 0528  Rendezvous at 50m 
 0556  Resume approach 
 0618  Stationkeep at 10m 
 0622  Resume approach 
 0627:39  Dock DM with Kristall 
 0636  APDS retracted and latched 
 0900  DM hatch open  92.42 391 x 395 x 51.6 
 1130? DM control to Russia 
1995 Nov 16  0526  RCS Orbiter/Mir structural dynamics test 
1995 Nov 17  1746  Crew return, hatch closed 
1995 Nov 18  0815:44  Atlantis undock from DM  92.42 391 x 395 x 51.6 
 0832  Stationkeep at 120 m, begin flyaround 
 0915? Second flyaround 
 1005  Sep burn  92.39 388 x 395 x 51.6  
 1514:20  OMS 8L 47s 13m/s lower orbit for GLO   
 1558:03  OMS 9R 55s 15m/s  91.39 337 x 348 x 51.6 
1995 Nov 19  1134  DTO 829 plume test RCS 
 1841  GLO RCS burns begin 
 1914  GLO RCS burns end 
1995 Nov 20  1320  PLBD closed  91.36 336 x 346 x 51.6 
 1558:43  OMS deorbit 3:54 132.2m/s  -106 x 346 x 51.6 
 1602:37  OMS DO CO 
 1630:02  Entry interface 122km 
 1701:09  Gear down 
 1701:27  MGTD RW33 KSC 
 1701:37  NGTD 
 1702:24  Wheels stop 
 1955Tow to OPF/1 

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