Vanguard (20in Radiation Balance #1)

USA

Spacecraft n°: 41

USA satellite n°: 32
Called also: 20" Radiation Balance Satellite

Launch data:

Designation F00064 / 59F05
Launch date 22 Jun 1959 - 20:16:09 UT
Launch site CC, LC18A
Launch vehicle  Vanguard SLV-6
Mission 
Decay  22 Jun 1959

Launch Failure.
First stage worked well, but 40 seconds into 2nd stage operation, the stage ruptured at 64-80 km altitude, and the vehicle broke up. The remains ascended to 145 km altitude and impacted 483 km downrange in the Atlantic Ocean.

Spacecraft data:

Prime contractor  
Customer  
Platform  
Mass at launch   kg
Dry Mass  kg
Basic shape  
Dimension  
Solar array  
Stabilization  
DC power  

Ref.: #7, #102(SL13) - update: 2.07.04