Launch SuccessfulUnited States Air Force

Thorad SLV-2H Agena D: Strawman 4

Name: Thorad SLV-2H Agena D: Strawman 4
Start: 1971-07-16T10:49:00Z
End: 1971-07-16T10:49:00Z
Location: Space Launch Complex 1W

The Strawman series of ELINT/SIGINT satellites, known for decades only as "Heavy Ferrets", are the fourth variation of Agena-based ELINT satellites. These satellites were designed to detect, map and investigate SAM and ABM radars.

Friday, 16 July 1971

Mission Data

🇺🇸United States Air ForceEst. 1947

Launch VehicleThorad SLV-2H Agena D

Vehicle FamilyThor

Vehicle Record12 of 13 launches (92.3%)

Provider TypeGovernment

Agency Record972 successes / 106 failures (90%)

Success Streak68 consecutive

Mission TypeGovernment/Top Secret

Target OrbitLow Earth Orbit

Launch PadSpace Launch Complex 1W

Location🇺🇸 Vandenberg SFB, CA, USA USA

Orbital Launches This Year#67

Agency Launches This Year#16

Launches From This Pad56

Launches From This Site923

Status Note

The launch vehicle successfully inserted its payload(s) into the target orbit(s).

About Thorad SLV-2H Agena D

Thor-Agena was a series of orbital launch vehicles. The rockets used Thor first stages and Agena second stages. They are thus cousins of the more-famous Thor-Deltas, which founded the Delta rocket family.

Launch Site

Space Launch Complex 1W · 34.7572°N 120.6303°W

Launch data from Launch Library 2 by The Space Devs.