Friday, October 23, 1992

Exploring Space

https://welib.org/md5/1758dae3e4f28c729aa05af8c540dfe2

Resurs 1991

 1991-035A


Resurs F-2 No. 6 (17F42 No. 6) was launched on a 30 day mission in May 1991. For the first time, a Resurs F mission was flown in a lower orbit of 230 x 235 km instead of the standard 265 km altitude. Trim burns were performed to raise the orbit whenever perigee decayed to arround 220-225 km.


Resurs F-2 No. 6 
 

DateTimeEventOrbit  

1991 May 21  0900  Launch by Soyuz-U  PL LC43/4 
 0904  Blok-I burn 
 0908  Blok-I sep 
1991 May 22  0230   88.74 181 x 243 x 82.31 
 0930   89.15 229 x 235 x 82.33 
1991 May 23  1200   89.13 229 x 233 x 82.31 
1991 May 27    89.03 224 x 228 x 82.31 
1991 May 27  1430   89.14 227 x 236 x 82.31 
1991 May 31    89.03 221 x 231 x 82.31 
1991 Jun 1  
 89.16 228 x 236 x 82.31 
1991 Jun 5    89.02 221 x 231 x 82.31 
1991 Jun 6  
 89.11 228 x 233 x 82.31 
1991 Jun 9    89.05 225 x 229 x 82.31 
1991 Jun 10  
 89.12 224 x 236 x 82.31 
1991 Jun 122130   89.16 232 x 234 x 82.31 
1991 Jun 18  0930   89.13 227 x 235 x 82.31 
1991 Jun 19  1700   89.10 225 x 234 x 82.31 
1991 Jun 20    
 0320?  Deorbit 
 0331?  PO sep 
 0340?  Entry  -201 x 228  
 0356?  Landing 

Saturday, October 10, 1992

Gambit 1

  1963-028A


The first KH-7 GAMBIT flight, SV 951, was launched in Jul 1963 by Atlas Agena D from the Point Arguello Naval Missile Facility adjacent to Vandenberg. The spacecraft remained attached to the Agena D for the first day, when the RV was recovered. The Agena gas was depleted after 9 orbits resulting in the vehicle becoming unstable and SRV recovery was done via the emergency Lifeboat system on rev 18. According to the AFCRL data the cosmic radiation package in the SRV was successfully recovered. The recovered reconnaissance film was out of focus but had a best resolution of 1 meter, much better than any previous spy satellite imagery.

After recovery, OCV then separated from the Agena 4702 upper stage in a test of the stabilization system, and reentered after 5 days on around Jul 18.0. OCV remained stable to orbit 25, was then deactivated and on orbit 34 reactivated, although it then was affected by spurious commands.

It isn't clear how long after SRV recovery the OCV separation happened; in the table below I assume it was one orbit later, but it may have been immediate. Similiary, SRV recovery times are not known exactly, and may be in error by one orbit even when a specific revolution is noted because of ambiguity in numbering of revolutions.



KH-7 1 
 

DateTimeEventOrbit  

1963 Jul 12  2045:59  Launch by Atlas Agena D  NMFPA 
 2048:17  BECO (T+2:18) 
 2050:36  SECO (T+4:37) 
 2050:53  VECO (T+4:54) 
 2050:58  Atlas sep (T+4:59) 
 2051:50  Agena burn (T+5:51) 
 2055:38  Agena MECO (T+9:39)  88.51 208 x 213 x 95.35 (VCR)  
1963 Jul 13  0801   88.34 173 x 211 x 95.3 
1963 Jul 13   Rev 15 last image 
1963 Jul 13  2315?  RV sep 
1963 Jul 13  2330?  RV recovered on Rev 18 
1963 Jul 14  0050?  OCV sep from Agena D 
1963 Jul   OCV orbit (28A) 88.3 173 x 212 x 95.3 (SATCAT) 
  Agena 4702 orbit (28C) 88.1 176 x 185 x 95.4 (SATCAT) 
  Debris orbit (28B)  87.8 122 x 216 x 95.3 (SATCAT) 
1963 Jul 16   Agena 4702 reentered 
1963 Jul 17  0200 OCV orbit  164 x 164 x 95.37 (RAE) 
1963 Jul 17  0315 87.76 163 x 163 x 95.4 
1963 Jul 17   OCV SV 951 reentered after 5.2d 

Friday, October 9, 1992

CAT-2

 1980-F01


The CAT capsule on the second Ariane launch, LO2, had a mass of 334 kg. It was similar to CAT 01, with a conical adapter above the cylindrical CAT module, but apparently without the ballast. Above CAT was a further cylinder with a transverse tube on which was mounted AMSAT, hanging off one side.

The Ariane was destroyed less than two minutes after launch from Kourou when the first stage engines shut down early. LO2 was targeted to a 17.5 deg trajectory for better tracking; the yaw manuever at T+2:41 changes the azimuth from 93.5 deg to 110.5 deg. At the time of the failure, before this yaw, the inclination was probably around 6.0 deg.


CAT 2 
 

DateTimeEventOrbit  

1980 May 23  1429:39 Launch by Ariane LO2  CSG ELA1 
 1429:43  T+4s Engine D pressure fluctuation 
 1429:45  T+6s all normal 
 1430:07  T+28s Engine D pressure fluctuation 
 1430:47  T+64s roll torque 
 1431:23  T+104s roll at 60 deg per second 
 1431:27  Self-destruct T+108s, 30 km

Saturday, October 3, 1992

Kosmos 431

  1971-065A


Kosmos-431 was launched in Jul 1971 from Baikonur on a 12 day mission at 51 degrees.


Kosmos-431 
 

DateTimeEventOrbit  

1971 Jul 30  0829:54  Launch by 11A57  KB 
 0834  Blok-I burn  
 0838  Blok-I sep  
 1712   89.05 189 x 264 x 51.8 (?) 
1971 Jul 31  1200   88.95 194 x 257 x 51.77 (RAE) 
1971 Jul 31  1656   89.02 196 x 255 x 51.7 
1971 Aug 2  0430   88.99 197 x 250 x 51.8 
1971 Aug 10
 88.79 193 x 235 x 51.8 
1971 Aug 11  0610? Retrofire 
 0620? PO sep 
 0626? Entry 
 0642? Landed 

Transit 2A

  1960-007A


The Transit IIA satellite carried the first subsatellite, NRL's GRAB 1 (GREB). It carried an experimental clock, and an Alouette program ionospheric beacon. Launch was southeast over South America, to reach high inclination. The despin weights were on a timer set to deploy after 7 day.s This reportedly did not work and 2A was despun using magnetic effects by late July. However, two objects were cataloged in orbit which may have been the despin weights.

The press kit claimed that the NOTS IR scanner was intended to measure the spin period of the satellite.


Transit IIA 
 

DateTimeEventOrbit  

1960 Jun 22  0554  Launch by Thor Ablestar  CC LC17 
  T+2:44 Thor MECO 
  T+2:46 Thor sep 
  T+2:46 Ablestar burn 
  T+3:35 Fairing 
 0603 T+7:28 Ablestar SECO-1 
  20 min coast 
 0619  T+25:25 Circ burn, 10 sec 
  Plan 926 km 6.808 km/s  -986 x 925 
 0619 T+25:39 SECO-2 
 0620
926 x 950  
 0622T+28:55 Ablestar sep  628 x 1047 x 66.7 
 0628? GRAB 1 satellite sep 
1962 Oct 26   End of transmissions 

Payload:

  • Electronic clock for navigation use

  • Infrared sensor (NOTS)

  • Ionospheric beacon and cosmic radio noise experiment (DRTE/Canada)

  • Beacon B 162/216 MHz, Beacon C 54/324 MHz

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