Friday, January 14, 2005

DirecTV-4S

 2001-052A


4S is a BSS601HP Block 1, with spot beams for local US programming, at 101W. It is the first spot-beam DirecTV satellite. Mass is 4300 kg full, 2100 kg dry. Size 2.7 x 3.6 x 4.0m 26.2m span. 38 active transponders on spot beam, plus 2 two primary and eight backup national transponders.


DirecTV-4S 
 

DateTimeEventOrbit  

2001 Nov 27  0035  Launch by Ariane 44LP 
  T+1:07 PAP sep 
  T+2:27 PAL sep 
  T+3:31 St 1 sep 
  T+3:34 St 2 MES 
  T+4:40 Fairing sep
  T+5:43 St 2 sep 
  T+5:48 St 3 MES 
 0053 T+18:19 St 3 MECO 
 0056 T+21:02 St 3 sep 
2001 Nov 27    630.04 219 x 35714 x 6.95 
2001 Nov 29  2140? LAM  
2001 Dec 2    1393.64 34120 x 35782 x 0.14 
2001 Dec 3  0500?  LAM 
2001 Dec 4    1435.87 35780 x 35783 x 0.08 GEO 101.6W 
2001 Dec 22    1435.98 35779 x 35789 x 0.04 GEO 101.2W

Sunday, January 9, 2005

Spektr

 1995-024A


77KSO (TsM-O, TKS 173), the Spektr earth resources module, was finally launched on 1995 May 20. Extra solar arrays were added late in the design process to alleviate Mir's severe power shortages. Launch mass of Spektr was 22000 kg, which was reduced to 19500 kg by the time it docked with Mir. Docking was delayed following problems with reconfiguring Mir to receive the spacecraft. It docked with Mir on the first attempt, unlike the earlier modules.


Spektr log 
 

DateTimeEventOrbit  

1995 May 20  0333:22  Launch 
 0335:28  St 1 sep 

0336:22  Fairing sep 

0338:57  St 2 sep 

0339  Stage 3 burn 

0342:59Stage 3 MECO 
 0343:11  Proton sep89.84 215 x 318 x 51.7 
1995 May 21  0211TCM-1 
 0419TCM-2  90.55 262 x 341 x 51.6 
1995 May 25  0212TCM 
 0247TCM  91.39 312 x 372 x 51.65 
1995 May 28  0109TCM? 
1995 Jun 1  0230Docked Mir -X 
1995 Jun 2 0445Transfer to side port 

Payload:

  • Solar array

  • Forward solar arrays

  • Module manipulator arm

  • Pelikan manipulator arm (2m) and science airlock

  • 286K binocular radiometer

  • Astra-2 trace gases experiment 

  • Balkan-1 lidar, 4.5m res with 5320A laser for cloud altitude measurements

May 13,2026

  https://planet4589.org/space/jsr/back/news.855.txt