NEXT SPACEFLIGHT

Status

Success

KH-4B 17 (Corona 145)

Launch Time
Thu May 25, 1972 18:41 UTC

Rocket

Thorad SLV-2G Agena-D
US Air Force
Status: Retired
Liftoff Thrust: 1,571 kN
Stages: 2
Strap-ons: 3
Rocket Height: 31.0 m

Mission Details

KH-4B 17 (Corona 145)

The KH-4B (Keyhole-4B) marked the sixth iteration within the Corona program for optical reconnaissance satellites. It was equipped with two J-3 panoramic cameras, each with a focal length of 61 cm, providing a ground resolution of 1.8 meters and a ground swath of 16 km × 217 km. Additionally, the KH-4B featured the DISIC (Dual Improved Stellar Index) camera, offering superior mapping capabilities compared to the KH-5 Argon system. The DISIC camera had a focal length of 91 cm, providing a ground resolution of 30 meters, with a frame coverage of 260 km × 260 km.

Location

SLC-3W, Vandenberg SFB, California, USA

Stats

1972

42nd orbital launch attempt

Thor-Agena

185th mission
2nd mission of 1972
159th successful mission
7th consecutive successful mission