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Rocket file · LV-414

Thor SLV-2 Agena B

McDonnell Douglas · Thor · RETIRED

Thor SLV-2 Agena B is an expendable launch vehicle built by McDonnell Douglas. It stands 27.2 m tall, lifts 400 kg to low Earth orbit, first flew on 25 January 1964. It has flown 3 times with 3 successes, a success rate of 100.0%. It has nothing on the Launch Library 2 schedule right now.

Specification

Vehicle spec sheet

ON FILE
Height27.2 m
Diameter2.4 m
Payload to LEO400 kg
Payload to GTONOT ON FILE
Maiden flight25 January 1964
ReusableNo, expendable
Launch cost$19.6M
StatusRETIRED

As listed by Launch Library 2. The cost is Launch Library’s figure, not a quoted price. Figures for rockets outside the sixty most-flown were last read on 2026-11-05.

Flight record

Reliability

ON RECORD
Total flights3
Successful3
Failed0
Success rate100.0%
Landing attempts0
Landing successN/A
Scheduled0
VariantSLV-2 Agena B

About Thor SLV-2 Agena B

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.

Upcoming flights

Manifest

EMPTY

Thor SLV-2 Agena B is retired, and no flight is filed.

All upcoming launches

From NASA's public image library and Wikimedia Commons. Each photo shows the credit its licence asks for and links back to where it came from.

Thor SLV-2A Agena B with Nimbus 2 (May 15, 1966) 1
Thor SLV-2A Agena B with Nimbus 2 (May 15, 1966) 1Wikimedia Commons ↗
Thor SLV-2A Agena B with Nimbus 2 (May 15, 1966) 3
Thor SLV-2A Agena B with Nimbus 2 (May 15, 1966) 3Wikimedia Commons ↗
Thor SLV-2A Agena B with Nimbus 2 (May 15, 1966) 2
Thor SLV-2A Agena B with Nimbus 2 (May 15, 1966) 2Wikimedia Commons ↗

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Common questions

How many times has Thor SLV-2 Agena B flown?
3 times, with 3 successes and 0 failures.
What is Thor SLV-2 Agena B's success rate?
100.0%. That's 3 successful flights out of 3 attempts.
How much can Thor SLV-2 Agena B lift to orbit?
Launch Library 2 lists Thor SLV-2 Agena B at 400 kg to low Earth orbit.
Is Thor SLV-2 Agena B reusable?
No. Launch Library 2 lists Thor SLV-2 Agena B as expendable, so no stage is recovered to fly again.