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Vehicles
Launch Vehicles
Thor DM-21 Agena-B

Retired· United States Air Force

Thor DM-21 Agena-B

Thor-Agena was a series of orbital launch vehicles.

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Thor DM-21 Agena-B

Launches

40

since Oct 1960

Success rate

80%

32 of 40 successful

In a row

18

successful launches

Launches per Year

Full year2026 so far

01

0

0

201820192020202120222023202420252026

Specifications

First flight: October 26, 1960
Manufacturer: United States Air Force

Next Launches

No Upcoming Launches

No launch is scheduled for this vehicle right now.

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Recent Launches

Thor DM-21 Agena-B | P-698BK Group 1-D 1

P-698BK Group 1-D 1United States Air Force · Thor DM-21 Agena-B · Space Launch Complex 1E, Vandenberg SFB, CA, USALaunch Successful9:59 PM UTC Nov24Sat

Thor DM-21 Agena-B | KH-4 15

KH-4 15United States Air Force · Thor DM-21 Agena-B · Space Launch Complex 1W, Vandenberg SFB, CA, USALaunch Successful10:00 PM UTC Nov5Mon

Thor DM-21 Agena-B | KH-4 14

KH-4 14United States Air Force · Thor DM-21 Agena-B · Space Launch Complex 1W, Vandenberg SFB, CA, USALaunch Successful10:04 PM UTC Oct9Tue

Thor DM-21 Agena-B | KH-5 7

KH-5 7United States Air Force · Thor DM-21 Agena-B · Space Launch Complex 1W, Vandenberg SFB, CA, USALaunch Successful6:35 PM UTC

All 40 Thor DM-21 Agena-B launches