Skip to content
DELTA-V
Thor DM-21 Agena-B lifting off

Vehicle file · LV-186

Thor DM-21 Agena-B

United States Air Force · Thor · RETIRED

Thor DM-21 Agena-B is an expendable orbital launch vehicle built by United States Air Force. It first flew on 26 October 1960. It has flown 40 times with 32 successes, a success rate of 80.0%. It has no flight on the public manifest at the moment.

Specification

Vehicle spec sheet

PUBLISHED
HeightNOT PUBLISHED
DiameterNOT PUBLISHED
Payload to LEONOT PUBLISHED
Payload to GTONOT PUBLISHED
Maiden flight26 October 1960
ReusableNo — expendable
Launch costNOT PUBLISHED
StatusRetired

Flight record

Reliability

ON RECORD
Total flights40
Successful32
Failed8
Success rate80.0%
Landing attempts0
Landing successN/A
Scheduled0

About Thor DM-21 Agena-B

Thor-Agena was a series of orbital launch vehicles.

Upcoming flights

Manifest

EMPTY

No Thor DM-21 Agena-B flight is filed in the current manifest window. Missions appear here the moment a launch date is published.

All upcoming launches

Common questions

How many times has Thor DM-21 Agena-B flown?
Thor DM-21 Agena-B has flown 40 orbital missions, with 32 successes and 8 failures.
What is Thor DM-21 Agena-B's success rate?
Thor DM-21 Agena-B has a success rate of 80.0%, from 32 successful flights out of 40 attempts.
When is the next Thor DM-21 Agena-B launch?
Thor DM-21 Agena-B has no flight on the public manifest at the moment. Scheduled missions appear here as soon as a launch date is filed.
How much can Thor DM-21 Agena-B lift to orbit?
United States Air Force has not published payload figures for Thor DM-21 Agena-B.
Is Thor DM-21 Agena-B reusable?
No. Thor DM-21 Agena-B is expendable: every stage is discarded during flight and nothing is recovered for reflight.