Thursday, January 18, 1979

Discoverer 29

 1961-023


The first KH-3 mission was CORONA 29 (mission 9023), flown on Aug 30 to Sep 1 1961. The mission was advertised as a test of modifications to the Discoverer system. Orbit mass of Agena 1112 was 1136 kg. The Agena was injected with a flight path angle of 7 degrees above the horizontal resulting in a low perigee, eccentric orbit.

The mission was successful and was recovered from the Pacific Ocean, impacting 220 km north of the predicted area. However, when the film was developed it was found to be out of focus due to a design error in the camera. As well as the C''' camera, Discoverer 29 carried supplementary scientific experiments and an X-ray counter for the VELA HOTEL nuclear blast monitoring program. The X-ray experiment was intended to discover if the X-ray background included bursts which would be confused with nuclear explosions. Although such bursts were later discovered, the CORONA tests did not find them, but did map out auroral X-rays (F. Seward, personal communication). A fuse blew after one orbit cutting power supply to the science experiments.


KH-3 Mission 9023 
 

DateTimeEventOrbit  

1961 Aug 30  2000 Launch by Thor Agena B  
 2002 Thor MECO (T+2:26) 
 2002  Thor VECO (T+2:35) 
 2002  Thor sep (T+2:40) 
 2003  Agena burn (T+3:28) 
 2007  Agena cutoff (T+7:30) 
   157 x 559 x ? (VCR) 
 2101   144 x 556 x 82.02 (OE) 
1961 Aug 31  0700  91.51 152 x 542 x 82.1 (RAE) 
1961 Aug 31  0741   91.45 149 x 542 x 82.1 
1961 Sep 1  0936   144 x 543 x 82.02 (OE) 
1961 Sep 1  2218? SRV sep on rev 33 
 2243? SRV recovered after 2.11d from sea 
 2245SRV water impact 26N 158 37W 
 2319   144 x 538 x 82.02 (OE) 
1961 Sep 4  0603   91.03 138 x 512 x 82.04 
1961 Sep 5   91.0 140 x 345 x 82.1 (SATCAT) 
1961 Sep 6  0332   90.73 131 x 490 x 82.1 
1961 Sep 9  2330? CORONA/Agena reentered 

Saturday, November 25, 1978

Diapason

 1966-013A


The third French satellite was the first of the Diamant series proper (A-1 being just a test capsule). D-1A, named Diapason (`waveband') after launch, carried a Doppler beacon transmitter for geodetic measurements. The 19 kg satellite was reported to be still operating a year after launch. It was built by MATRA for CNES. D-1 was a cylinder 0.50m dia 0.20m high plus 4 solar panels spanning about 1.0m and angled downward, with 4 aerials on the top of the satellite giving a total height of order 1.5m. D-1A was spin-stabilized at 30 rpm after yo-yo despin.


Diapason 
 

DateTimeEventOrbit  

1966 Feb 17  0833:36 Launch by Diamant A  HMG Brigitte  
 0835:09  T+93s Emeraude MECO 
 0835:09  Emeraude sep 
 0835:09  T+1:33 Topaze burn 43s 
 0835:55? T+2:16? Topaze burnout  -5830 x 550 x 34.2  
 0836:05? T+2:26? Fairing sep 
  Coast 
 0838:30? T+4:54? Topaze sep 
 0840:55? T+7:19? Rubis burn 45s 
 0841:40? T+8:04? Rubis burnout 
 0841:40 Orbit insertion  118.51 499 x 2738 x 34.0 
  Yo-yo despin 
 0846  Rubis sep 
1967 Feb   Still operating 
1972 Jan 23   End of operations 

November 20,2006

  https://en.wikipedia.org/wiki/Association_football