NEXT SPACEFLIGHT

Status

Failure

Vanguard SLV-1

Launch Time
Wed May 28, 1958 03:46 UTC

A 2nd stage attitude control failure prevented the 3rd stage from entering the correct angle for orbital insertion.

Rocket

Vanguard
US Navy
Status: Retired
Liftoff Thrust: 135 kN
Payload to LEO: 10 kg
Stages: 3
Strap-ons: 0
Rocket Height: 23.0 m

Mission Details

Vanguard SLV-1

The objective of the Vanguard SLV1 and SLV2 satellites was to launch into orbit a fully instrumented, 20in, 10 kg Lyman-alpha satellite. This satellite was to study solar Lyman-alpha radiation and to make certain space environment measurements; it was identical to the Vanguard x-ray satellite of TV-5 except that it covered the 1100 to 1300 Å wavelength bands.

Payloads: 1
Total Mass: 10.0 kg
Medium Earth Orbit

Location

LC-18A, Cape Canaveral SFS, Florida, USA

Stats

1958

9th orbital launch attempt

Vanguard

5th mission
4th mission of 1958
4th failed mission