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List of Thor DM-18 Agena-A launches

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A Thor-Agena launch vehicle, ready to launch the Discoverer 37 (KH-3) spacecraft, on 13 January 1962 Thor Agena B with Discoverer 37 on launch pad (Jan. 13 1962).jpg
A Thor-Agena launch vehicle, ready to launch the Discoverer 37 (KH-3) spacecraft, on 13 January 1962

Thor DM-18 Agena A or just Thor-Agena was a series of orbital launch vehicles. The rockets used the Douglas-built Thor first stage and the Lockheed-built Agena second stages. They are thus cousins of the more-famous Thor-Deltas, which founded the Delta rocket family. The first attempted launch of a Thor-Agena was in January 1959. The first successful launch was on 28 February 1959, launching Discoverer 1 . It was the first two-stage rocket to place a satellite into orbit. [1]

Contents

Launch statistics

Launch outcome

1
2
3
4
5
6
7
8
  •   Success
  •   Failure

Launchpad

1
2
3
4
5
6
7
8
  •   VAFB LC-75-3-4
  •   VAFB LC-75-3-5

Launch history

The data in this table comes from [2] and [3] [4] [5]
Date/Time
(UTC)		Rocket S/N Launch sitePayloadFunctionOrbitOutcomeRemarks
1959-02-28
21:49:16		 Thor DM-18 Agena-A Thor 163
Agena 1022		VAFB LC-75-3-4 Discoverer 1 ReconnaissanceLEOFailureMaiden flight of Thor-Agena. Agena telemetry lost T+730 seconds. Fate of the payload unknown, but generally presumed to have impacted somewhere in Antarctica.
1959-04-13
21:18:39		Thor DM-18 Agena-AThor 170
Agena 1018		VAFB LC-75-3-4 Discoverer 2 ReconnaissanceLEOSuccess
1959-06-03
20:09:20		Thor DM-18 Agena-AThor 174
Agena 1020		VAFB LC-75-3-4 Discoverer 3 ReconnaissanceLEOFailureAgena attitude control malfunction pointed the stage in the wrong direction, sending it into the Pacific Ocean rather than orbit.
1959-06-25
22:47:45		Thor DM-18 Agena-AThor 179
Agena 1023		VAFB LC-75-3-5 Discoverer 4 ReconnaissanceLEOFailureAgena developed insufficient thrust to attain orbital velocity.
1959-08-13
19:00:08		Thor DM-18 Agena-AThor 192
Agena 1029		VAFB LC-75-3-4 Discoverer 5 ReconnaissanceLEOSuccess
1959-08-19
19:24:44		Thor DM-18 Agena-AThor 200
Agena 1028		VAFB LC-75-3-5 Discoverer 6 ReconnaissanceLEOSuccess
1959-11-07
20:28:41		Thor DM-18 Agena-AThor 206
Agena 1051		VAFB LC-75-3-4 Discoverer 7 ReconnaissanceLEOSuccess
1959-11-20
19:25:24		Thor DM-18 Agena-AThor 212
Agena 1050		VAFB LC-75-3-5 Discoverer 8 ReconnaissanceLEOFailureOrbit too eccentric for use of return capsule
1960-02-04
18:51:45		 Thor DM-18 Agena-A Thor 218
Agena 1052		VAFB LC-75-3-4 Discoverer 9 ReconnaissanceLEOFailurePremature Thor cutoff. Agena could not attain orbital velocity.
1960-02-19
20:15:14		Thor DM-18 Agena-AThor 223
Agena 1054		VAFB LC-75-3-5 Discoverer 10 ReconnaissanceLEOFailureThor flight control malfunction. RSO T+52 seconds.
1960-04-15
20:30:37		Thor DM-18 Agena-AThor 234
Agena 1055		VAFB LC-75-3-5 Discoverer 11 ReconnaissanceLEOSuccess
1960-06-29
22:00:44		Thor DM-18 Agena-AThor 160
Agena 1053		VAFB LC-75-3-4 Discoverer 12 ReconnaissanceLEOFailureAgena attitude control malfunction.
1960-08-10
20:37:54		Thor DM-18 Agena-AThor 231
Agena 1057		VAFB LC-75-3-5 Discoverer 13 ReconnaissanceLEOSuccessFirst successful recovery of a manmade object from orbit.
1960-08-18
19:57:08		Thor DM-18 Agena-AThor 237
Agena 1056		VAFB LC-75-3-4 Discoverer 14 ReconnaissanceLEOSuccess
1960-09-13
22:14		Thor DM-18 Agena-AThor 246
Agena 1058		VAFB LC-75-3-5 Discoverer 15 ReconnaissanceLEOSuccess

References

  1. ↑ "Thor Agena A". www.astronautix.com. Archived from the original on December 27, 2016. Retrieved 2021-08-03.
  2. ↑ "Thor Agena". Gunter's Space Page. Retrieved 2021-08-03.
  3. ↑ "Thor-DM18 Agena-A". Gunter's Space Page. Retrieved 2021-08-03.
  4. ↑ "Discoverer-14 1960-010A". NASA. 14 May 2020. Retrieved 4 August 2021.
  5. ↑ TRW Space Log. TRW Systems Group. August 4, 1960. pp. 10–12 – via Google Books.
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