Monday, May 27, 1985

DSP 8

 1975-118A


The Flight 5 satellite was actually spacecraft 8 (or possibly 7), the first of the heavier Block II satellites with a mass of 1040 kg. The last Block 1 satellites, spacecrafts 5 and 6, were kept in storage and later upgraded. The enlarged IR arrays had 6000 pixels. Shortly after orbit insertion, a fuel line ruptured (detected by the impact warning sensor) and attitude control was lost but later recovered. The spacecraft remained in a drift orbit in which it saw some operational use.


DSP 8 
 

DateTimeEventOrbit  

1975 Dec 14  0515:00  Launch by Titan IIIC  CC 
 0517?  SRM sep 
 0519?  Stage 1 sep 
 0520?  Fairing sep
 0522?  Stage 2 MECO  151 x 398 x 28.6 
 0523? Stage 2 sep 
 0620? Transtage MES-1 
 1145?  MES-2 
 1145?  MECO-2 
 1200?  Transtage sep 1436.0 35671 x 35785 x 3.0

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May 13,2026

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