Friday, April 22, 1988

Echo 1A

  1960-F07


The first Echo satellite to head for orbit was the A-10 payload. Launched on 1960 May 13 by the first Thor Delta launch vehicle from Cape Canaveral, it failed to reach orbit because the Delta second stage lost guidance after shutdown.

A-10's balloon had a mass of 60 kg. It was inflated with 5 kg of benzoid and 10 kg of anthraquinone, and coated with 2 kg of Al, and then had a mass of 75 kg and a diameter of 30m. The spacecraft was packed into a 11 kg, 0.67m dia magnesium sphere. Inflation should have occurred 2 min after orbit insertion. Planned inclination was 47 deg.

Stage 3 did not fire after the coast phase; the Stage 2/Stage 3/payload impacted the Atlantic near Ascension I. This confirms that the stage 2 inclination was more like 33 degrees, with a yaw burn planned for stage 3.

The third stage carried a 7 kg radio transmitter for tracking purposes, giving it a total empty mass of 30 kg.


Echo A-10 
 

DateTimeEventOrbit  

1960 May 13  0916:05  Launch by Delta  CC LC17A 
 0918:42 T+2:37 MECO 
 0918  Thor sep 
 0918 Delta stage 2 burn 1:51 
 0920:40? SECO 
 0927:35  T+11:30 Guidance failed 
 0935:49 T+19:44 Stage 3 failed to sep  
 0952? Impact 

Friday, April 15, 1988

Lunar Orbiter 5

  1967-075A


The last Lunar Orbiter, spacecraft 3 or Lunar Orbiter E, was launched at 2233 on 1967 Aug 1 by Atlas Agena D from Cape Kennedy on azimuth 105.6 deg. Launch mass was 392 kg; mass prior to deorbit burn was 266 kg. The course correction was made at around 1100 on Aug 3. Lunar orbit insertion was at 1648 on Aug 5 into a 196 x 6040 km x 85.0 orbit, lowered on Aug 7 to 100 x 6050 km x 84.6 deg. Imaging was concluded at the end of August. After completion of the photo mission, the remaining Lunar Orbiters were used as tracking targets for the Apollo network. LO-5's orbit was tweaked on Oct 10 to help it survive an eclipse. The extended mission was ended when the nitrogen supply was exhausted. The spacecraft was deorbited on 1968 Jan 31 and impacted the lunar surface at 0758:10.


Lunar Orbiter V 
 

DateTimeEventOrbit  

1967 Aug 1  2233:00  Launch by Atlas Agena D 
 2235:08T+2:08 BECO 
 2235:11T+2:11 Booster sep 
 2237:48T+4:48 SECO 
 2238:08T+5:08 VECO 
 2238:12T+5:12 Atlas 5805 sep  -4090 x 180 x 31.07 
 2239:09  T+6:09 Agena 6634 burn 1 
 2241:44  T+8:44 Agena MECO 177 x 196 x 31.1 
 2304:20 T+31:20 Agena burn 2 
 2305:48 T+32:48 Agena MECO  
 2308:33  T+35:33 Agena sep 
 2318:33  T+45:33 Agena retro, 17s 
1967 Aug 3  0600:00  TCM 29.8m/s 26s 
1967 Aug 5  0248  
635 x -15402 x 103.1(B1950) 
1967 Aug 5  1648:54  LOI-1 8:28 643 m/s  
 1657:22  LOI  194 x 6023 x 85.01 
1967 Aug 5?   Agena flyby at 25317 km 
  Agena orbit  9380 x 369831  
1967 Aug 6  2322  Photo mission begins 
1967 Aug 7  0843:48  LOI-2 10s burn apolune 16.0m/s 100 x 6023 x 84.6 
1967 Aug 9  0508:32 TCM at perilune 2:31 234m/s  99 x 1499 x 84.76 
1967 Aug 10   Begin nearside photos 
1967 Aug 18   Photo mission complete 
1967 Aug 19  0430  Begin readout 
1967 Aug 26   Readout complete 
1967 Aug 28   Begin extended mission  105 x 1490 x 85 
1967 Oct 10    113 x 1480 x 85 
1967 Oct 10  1937:10 TCM 41s at perilune 67m/s 200 x 1986 x 85.2 
1968 Jan 31  0631:03 Deorbit 29.1m/s 16.7s  164 x 2023 x 85 
 0631:20 DO CO  -7.4 x 2023 x 85 
 0758:08  Lunar impact 2.79S 83.04W 

Sunday, April 10, 1988

Biosatellite 1

  1966-114A


Biosatellite I (Biosatellite A), spacecraft 302, was launched at 1920 on 1966 Dec 14 by Delta G from LC17 at Cape Kennedy. Orbit insertion was at 1929 into a 90.4 min, 295 x 309 km x 33.5 deg orbit. The reentry vehicle carried an experiment capsule with an assortment of small biological specimens. Return was scheduled for Dec 17 on orbit 47; the adapter section separated successfully but the retro motor failed to fire and the reentry vehicle remained in orbit, reentering on 1967 Feb 15 and landing in the ocean near Australia. A search was carried out but the capsule was not recovered. The adapter section reentered on 1967 Feb 15.


Biosatellite 1 
 

DateTimeEventOrbit  

1966 Dec 14  1920:03  Launch by Delta G  CK LC17A 
  T+0:43 SRM out 
  T+1:10 SRM sep 
 1922:32 T+2:29 Thor S/N 20211 MECO 
 1922  T+2:34s Stage 1 sep 
 1922 T+2:34s Delta S/N 20201 burn 6:18 
 1929  T+9:11s Delta SECO 
 1930  Delta sep  90.4 295 x 309 x 33.5  
 1938Mag boom deploy 
1966 Dec 171730Rev 46: deorbit mode 
1966 Dec 17  1750?  Adapter sep, rev 47/ orbit 46 
1966 Dec 20  0600   90.55 291 x 311 x 33.5 
1967 Jan 10   Adapter reentry 
1967 Jan 29    89.66 254 x 260 x 33.5 
1967 Feb 14  0146   88.11 180 x 180 x 33.5 
1967 Feb 15   RV reentry over Australia 


Kosmos 858

 1976-098A




Kosmos-858 
 

DateTimeEventOrbit  

1976 Sep 29  0704 Launch by 11K65M  Plesetsk 
  Stage 2 burn 
 0712?  T+8 min Stage 2 MECO-1 
  Stage 2 MES-2 
  T+34min Stage 2 MECO-2 
 0736?  Stage 2 sep 
1976 Sep 29   100.9 792x813x74.1 

Kosmos 947

 1977-081A




Kosmos-947 
 

DateTimeEventOrbit  

1977 Aug 27  1009 Launch by Soyuz-U  Plesetsk 
 1013  Blok-I burn 
 1017  Blok-I sep 
1977 Aug 27    89.73 202 x 320 x 72.9 
1977 Sep 8    88.62 199 x 311 x 72.8 
1977 Sep 9   
 0423? Deorbit 
 0433? PO sep 
 0439? Entry 
 0454? Landed 

Sunday, April 3, 1988

Kosmos 1872

 1987-069A


Two-tone telemetry; Hi res satellite


Kosmos-1872 
 

DateTimeEventOrbit  

1987 Aug 19  0659:59 Launch by Soyuz  PL 
 0704  Blok-I burn 
 0708  Blok-I sep 
1987 Aug 19    89.53 196 x 305 x 72.9 
1987 Aug 19  2035? Orbit raise  90.84 246 x 385 x 72.9 
1987 Aug 22    90.84 246 x 384 x 72.9 
1987 Aug 23   Lower apo  89.27 224 x 251 x 72.9 
1987 Aug 29    89.21 222 x 248 x 72.9 

 
1987 Aug 30   
 0132?  Deorbit 
 0142?  PO sep 
 0150?  Entry  -207 x 248 
 0206? Landed 

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