Friday, February 12, 1999

Kosmos 266

  1969-015A


Zenit-2 No. 71 flew an 8 day mission from Plesetsk at 72.9 deg. It landed on Mar 5 35 km N of Tselinograd at 51 32 N 71 29 E.


Kosmos-266 
 

DateTimeEventOrbit  

1969 Feb 25  1020  Launch by 11A57  PL 
 1025  Blok-I burn 
 1029  Blok-I sep  89.9 208 x 358 x 72.9 (TASS) 
1969 Feb 26  0837   89.89 200 x 336 x 72.9 
1969 Mar 1  2031   89.81 200 x 330 x 72.9 
1969 Mar 4   Blok-I reentered 
1969 Mar 5  0520?  Retrofire 
 0545 Landed after 7.9d 

Monday, February 8, 1999

Kosmos 260

  1968-115A


A second Molniya-1Yu calibration satellite was launched in 1968 Dec and named Kosmos-260. It continued tests of the N-1/L-3 lunar communications network.


Kosmos-260 
 

DateTimeEventOrbit  

1968 Dec 16  0915:03  Launch by 8K78M  KB 
  BVGD sep 
  GO sep 
  T+4:46 Blok A sep 
  T+4:56 KhO sep 
  T+8:46 Blok-I MECO 
 0923  T+8:50 Blok-I sep 91.6 230 x 473 x 65.0  
  T+53:16 BOZ burn 
 1009?  T+53:56 BOZ sep 
  ML burn 
  T+56:46 ML MECO 
 1012?  T+56:54 ML sep  712.36 518 x 39570 x 64.9 (RAE) 
1968 Dec 29    712.18 489 x 39588 x 65.0 
1969 Aug 7    712.34 838 x 39247 x 65.0 
1973 May 22    707.88 216 x 39649 x 64.8 
1973 May 27    706.59 215 x 39586 x 64.8 
1973 Jul 9   Reentered 

Venera 9

  1975-050A


The first V-75 probe, 4V-1 No. 660, was launched on 1975 Jun 8 as Venera-9. It used the 4M type orbital bus with a lander of a new design. The orbiter was OA No. 660 and the lander was SA No. 660. The upper stage was a Blok D-1, 11S824M No. 10326501L.

Prior to first TCM closest approach was calculated as Oct 22 0215, with a 30000 km miss distance.


Venera-9 
 

DateTimeEventOrbit  

1975 Jun 8  0238  Launch by Proton-K  KB 
 0240  Stage 1 sep 
 0243  Stage 2 sep 
 0247  Stage 3 MECO 
 0247  Stage 3 sep 
 0251?  Blok D MES-1 
 0253?  MECO-1  179 x 437 x 51.37 
 0404?  MES-2 8:37? 
 0412:00  MECO-2 
1975 Jun 16  1130:03  TCM 11.93m/s 
1975 Oct 15  0259:24  TCM-2 13.4m/s 
1975 Oct 20  1605SA separated 
  TCM 0.247 km/s 
1975 Oct 22 0851VOI 0.923 km/s, Venus orbit  1500 x 111700 x 34 
  TCM 1300 x 112200 x 34.1 
1975 Oct 26   Venus bow shock 
1975 Nov 1   Venus bow shock 
1975 Nov 11   Venus bow shock 
1976 Jun 21   End of transmissions 

Payload:

  • Bistatic radar

  • IR radiometer

  • IR spectrometer

  • UV photometer

  • Ion spectrometer



1975-050D

The Venera-9 SA landed at 290 50 longitude, 31 42 N. The temperature was 455 C, and the pressure was 85 bar. Entry was 10.7 km/s at 20.5 deg, altitude 125 km.


Venera-9 SA 
 

DateTimeEventOrbit  

1975 Jun 8   Launch by Proton-K  KB 
1975 Oct 18  1700?  Enter Venus gravisphere 
1975 Oct 20  1605Sep from Venera-9   
1975 Oct 22  0353:50  Entry (0358 ERT) at -21 deg? 
1975 Oct 22  0508:23  Landed (0513:07 ERT) 
1975 Oct 22  0601  End of transmissions after 53 min 

Payload:

  • Cameras

  • Densimeter

  • Gamma ray spectrometer

  • Anenometer

Town and Country: October 1998

 https://welib.org/md5/02e7e0f25ec4429465107b0c1ffda707

Sunday, February 7, 1999

Skynet 4B

 1988-109A


The Skynet 4B satellite was launched on 1988 Dec 11 by Ariane. It was built by BAe Stevenage with a Marconi Space Systems (Portsmouth) comms payload. In 1990 it was moved from 1W to 53E. The satellite was retired in Jul 1998.


Skynet 4B 
 

DateTimeEventOrbit  

1988 Dec 11  0033  Launch by Ariane (V27)  CSG ELA2 
  T+0:03 PAP on 
  T+1:06 PAP sep 
  T+2:29 PAL sep 
  T+3:34 St 1 sep  
  T+3:36 St 2 MES 
  T+4:45 Fairing 
  T+5:45 St 2 sep 
  T+5:49 St 3 MES 
 0051:30  T+17:49 St 3 MECO 
 0053:48  T+20:07 Skynet 4B sep 
 0056:07 T+22:26 SPELDA sep 
 0057:58 T+24:17 Astra 1A  220? x 35550? x 6.7  
1988 Dec 13  2029?  AKM  
1988 Dec 13    1404.97 34427 x 35923 x 3.1 GEO 136.8W+8.0E 
1989 Jan 3    1413.24 34886 x 35789 x 3.0 GEO 9.3W+5.8E 
1989 Jan 8    1436.08 35776 x 35796 x 3.0 GEO 1.2W 
1989 Feb 8    1436.06 35777 x 35794 x 2.9 GEO 1.0W 
1990 Jun 21    1436.05 35776 x 35795 x 1.7 GEO 0.9W 
1990 Jul   mv out  
1990 Jul 18    1436.26 35777 x 35802 x 1.7 GEO 2.6W+0.05W 
1990 Aug 12    1431.16 35680 x 35699 x 1.5 GEO 52.8E+1.2E 
1990 Aug?   mv in at 53E 
1990 Sep 13    1436.08 35729 x 35843 x 1.5 GEO 53.0E 
1991 Jan 13   spurious? 1436.06 35758 x 35813 x 1.2 GEO 55.8E 
1991 Mar 21    1436.07 35778 x 35793 x 1.0 GEO 53.0E 
1992 Aug 15    1436.05 35768 x 35802 x 0.3 GEO 52.9E 
1993 Aug 9    1435.93 35742 x 35824 x 1.2 GEO 53.3E 
1996 May 16    1436.07 35776 x 35795 x 3.3 GEO 53.0E 
1998 Jun 16    1435.95 35778 x 35789 x 4.8 GEO 53.7E 

Space Satellite Handbook

https://welib.org/md5/f7ca3c5eb2023ea0094934e20c07e45e

Kosmos 1383

 1982-066A


This was the first KOSPAS satellite. 


Kosmos-1383 
 

DateTimeEventOrbit  

1982 Jun 29  2145:41 Launch by 11K65M  Plesetsk 
  T+2:10 St 1 MECO 
  T+2:12 St 1 sep 
  T+2:12 St 2 burn 59km 
  T+2:27 Fairing 76km 
 2153?  T+8:03 St 2 MECO 150 km  150 x 1003? x 83 
  T+1:02:19 St 2 MES2 
  T+1:02:30 St 2 MECO2 
 2248?  T+1:02:50 St 2 sep 
1982 Jun 29   105.4 991x1029x82.9

Venera 3

  1965-092A


Venera-3, launched a few days after Venera-2, was the 3MV-3 No. 1 probe, which carried a descent capsule for a landing on Venus. The spacecraft failed prior to its arrival at Venus and it is probable that the SA (descent capsule) failed to separate. Venera-3 impacted the night side of Venus near the terminator.

Initial miss distance was 60550 km (with flyby on 1966 Mar 1 at 00:00:37); presumably the Blok-L had a similar orbit. A trajectory correction of 20m/s nudged it for impact.


Venera-3 
 

DateTimeEventOrbit  

1965 Nov 16  0413:35  Launch by Molniya 8K78M KB 
 0418?  Blok-A sep 
 0418?  Blok-I burn 
 0422?  Blok-I sep 
 0533?  BOZ burn 
 0534?  Blok-L burn 
 0538?  Blok-L sep, solar orbit 
1965 Dec 26  1504  TCM 19.7m/s 
1966 Jan   Last contact? 
1966 Mar 1  0656:26  Impact Venus 

Pale Blue Dot: A Vision of the Human Future in Space

 https://welib.org/md5/49fb3812362a672657e22dd1384b7223

College Cheerleading Guide

https://welib.org/md5/7f8f6952af65b17b886a35a74d5a8099

Cher’s Furiously Fit Workout

 https://welib.org/md5/ea04123614ce9e1a3302c271ede76004

May 13,2026

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