Vanguard (20in Lyman-Alpha #2)

USA

Spacecraft n°: 13

USA satellite n°: 9

Launch data:

Designation	F00014 / 58F06
Launch date	26 Jun 1958 - 5:00:52 UT
Launch site	CC, LC18A
Launch vehicle	Vanguard SLV-2
Mission	X-ray satellite

Failure.
First stage functioned well, but when the second stage fired it didn't develop full thrust due to leakage in the pressurisation system. It finally shut down early when the oressure was gone.

Spacecraft data:

Prime contractor
Customer
Platform
Mass at launch	kg
Dry Mass	kg
Basic shape
Dimension
Solar array
Stabilization
DC power
Decay	26 Jun 1958

Ref.: #7, #102 - update: 2.07.04

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