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A Thor-Agena launch vehicle, ready to launch the Discoverer 37 (KH-3) spacecraft, on 13 January 1962 Thor DM-18 Agena or just Thor-Agena was a series of orbital launch vehicles.
The Agena Target Vehicle (/ ə ˈ dʒ iː n ə /; ATV), also known as Gemini-Agena Target Vehicle (GATV), was an uncrewed spacecraft used by NASA during its Gemini program to develop and practice orbital space rendezvous and docking techniques, and to perform large orbital changes, in preparation for the Apollo program lunar missions. [1]
Thor-Agena D. Thor-Agena D (Thor-DM21 Agena-D or Thor-SLV2 Agena-D) was used for 83 launches between 28 June 1962 and 17 January 1968 [7] Includes a variant with Solid Rocket Boosters (TAT Agena-D or Thor-SLV2A Agena-D) [8] First launch: 28 June 1962 with KH-4 19; Last launch: 17 January 1968 with Multigroup 3 and Setter 1B-2
The earliest Agena variant was the Agena A in 1959–60, which did not have restart capability, mostly flown on Thor-Agena boosters for the Discoverer program.. The early Atlas LV3 Agena A variant was flown four times for the Midas and Samos programs (Midas 1, Midas 2, Samos 1, and Samos 2), with two failures.
The first Agena-D launch was of KH-4 #7 on June 28, 1963, and a total of 269 Agena-Ds were launched. The Agena-D was used to launch KH-7 GAMBIT and KH-8 Gambit 3 reconnaissance satellites, three Mariner probes to Venus and the two Mariner space probes to Mars. Thor-Agena flew for the last time in 1972 when it launched a KH-4B satellite.
Forty-three launches took place from 1966-72 with two complete failures and one partial. [2] [3] [5] [6]The launch of a KH-4A photo reconnaissance satellite on May 9, 1967, malfunctioned when the Thor's first stage failed to cut off on schedule and continued burning until LOX depletion, thus putting the satellite into an incorrect orbit that seriously reduced its image quality.
Download QR code; Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. Agena may refer to: Keiko Agena ...
Beta Centauri is a triple star system in the southern constellation of Centaurus.It is officially called Hadar (/ ˈ h eɪ d ɑːr /).The Bayer designation of Beta Centauri is Latinised from β Centauri, and abbreviated Beta Cen or β Cen.