NEXT SPACEFLIGHT

Status

Success

Explorer 18 (IMP-A)

Launch Time
Wed Nov 27, 1963 02:30 UTC

Rocket

Delta C
Image Credit: USAF or NASA
US Air Force
Status: Retired
Liftoff Thrust: 667 kN
Payload to LEO: 410 kg
Payload to GTO: 82 kg
Stages: 3
Strap-ons: 0
Rocket Height: 31.0 m

Mission Details

Explorer 18

Explorer 18, also called IMP-A, IMP 1 and S-74, was an American satellite launched as part of the Explorers program. Explorer 18 was the first satellite of the Interplanetary Monitoring Platform.

Payloads: 1
Total Mass: 62.0 kg
Highly Elliptical Orbit

Location

SLC-17B, Cape Canaveral SFS, Florida, USA

Stats

1963

59th orbital launch attempt

Delta C

1st mission
1st mission of 1963
1st successful mission