Tuesday, August 22, 1995

Gemstar

 1995-F04


The Gemstar DSS-1 (Vitasat 1) satellite was the test payload for the demonstration flight of the Lockheed Launch Vehicle. The three stage vehicle had a Castor 120 first stage, an Orbus 21D second stage, and a Rocket Research Corp. Orbit Adjust Module (OAM). Planned orbit was 667 x 667 km x 88 deg. Gemstar/Vitasat was built for Volunteers in Technical Assistance, Inc (VITA) of Arlington, Virginia. It was also to be used part of the time by CTA; CTA referred to it as Gemstar and VITA called it VITASAT. Toward the end of first stage propulsion, the rocket began oscillating when thrust vector control malfunctioned due to a fire in the aft area. During the coast period an inertial measurement unit also failed and the vehicle went off course, although fairing and first stage separation and second stage ignition went as planned. The satellite was destroyed with the rocket three minutes after launch at an altitude of 147 km. 


Gemstar 1 
 

DateTimeEventOrbit  

1995 Aug 15  2230  Launch by LLV-1  V SLC6 
 2230  Fire in aft area (T+0:13) 
 2231  TVC control error, pitchup (T+1:20) 
 2231  Castor 120 cutoff (T+1:30) 
  Coast period 
 2232  IMU attitude lost (T+2:07), on wrong trajectory 
 2232  Payload fairing jettison (T+2:20) 
 2232  Castor 120 sep (T+2:30) 
 2232  Orbus 21D TIG (T+2:30) 
 2233  RSO destruct (T+2:40) 

Payload:

  • UHF 150 MHz/400MHz comm payload

Sunday, August 20, 1995

Kosmos 574

  1973-042A


The second successful 83 degree Tsiklon mission was launched in Jun 1973 as Kosmos-574.


Kosmos-574 


DateTimeEventOrbit  

1973 Jun 20  0616:27  Launch by 11K65M  PL  
 0618?  Stage 2 burn  
 0624?  Stage 2 coast 
 0718?  Stage 2 burn 2 
 0719?  Stage 2 sep  
1973 Jun 23  0500   105.14 985 x 1014 x 82.9

May 13,2026

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