Thorad-Agena

The Thorad-Agena was an American expendable launch system, derived from the Thor and Delta rockets. The first stage of the rocket was the stretched variant of the Thor which had been developed for the Delta programme. The second stage was the Agena-D, which had already been used in conjunction with the standard configuration Thor, as the Thor-Agena. Three Castor rockets would be used as boosters. Forty-three were launched between 1966 and 1972, of which two failed, and one delivered its satellite into an incorrect, but still usable orbit. Most launches carried Corona (KeyHole) reconnaissance satellites, particularly spacecraft of the KH-4 series, however some scientific and technology development satellites were also flown, mostly towards the end of the programme.

The Thorad-Agena was flown in two different configurations, the SLV-2G, and the SLV-2H. These differed in that the SLV-2G used Castor 1 strap-on boosters, whereas the 2H used Castor 2s.

Expendable launch systems
Current
Spaceflight portal
  • Antares
  • Ariane 5
  • Atlas V
  • Delta
  • Dnepr-1
  • GSLV
  • H-IIA
  • H-IIB
  • Falcon 9‡
  • Kaituozhe-1
  • Kosmos-3M
  • Long March
    • 1D
    • 2C
    • 2D
    • 2F
    • 3A
    • 3B
    • 3C
    • 4B
    • 4C
  • Minotaur
    • I
    • IV
  • Paektusan
  • Pegasus
  • Proton-M
  • PSLV
  • Rokot
  • Safir
  • Shavit
  • Shtil'
  • Start-1
  • Strela
  • Soyuz
    • U
    • FG
    • 2
  • Taurus
  • Tsyklon-2
  • Unha
  • Vega
  • VLS-1
  • Volna
  • Zenit
    • 2
    • 2M
    • 3SL
    • 3SLB
    • 3F
Planned
  • Angara
  • Athena
    • Ic
    • IIc
  • Ausroc IV
  • Epsilon
  • Falcon Heavy
  • GSLV Mk III
  • Haas
  • Long March
    • 5
    • 6
    • 7
    • 9
    • 11
  • Minotaur V
  • Naro-2
  • RPS (420, 550)
  • Simorgh
  • SLS
  • Southern Cross
  • Soyuz-2-1v
  • SPARK
  • Tsyklon-4
  • VLM
  • VLS-Alfa
  • VLS-Beta
Previous
  • Ariane
    • 1
    • 2
    • 3
    • 4
  • ASLV
  • Athena
    • I
    • II
  • Atlas
    • B
    • D
    • E/F
    • G
    • H
    • I
    • II
    • III
    • LV-3B
    • SLV-3
    • Able
    • Agena
    • Centaur
  • Black Arrow
  • Conestoga
  • Delta
    • A
    • B
    • C
    • D
    • E
    • G
    • J
    • L
    • M
    • N
    • 0100
    • 1000
    • 2000
    • 3000
    • 4000
    • 5000
    • III
  • Diamant
  • Energia
  • Europa
  • Falcon 1‡
  • Feng Bao 1
  • H-I
  • H-II
  • J-I
  • Juno I
  • Juno II
  • Kosmos
    • 1
    • 2I
    • 3
  • Lambda
    • 4S
  • Long March
    • 1
    • 2A
    • 2E
    • 3
    • 4A
  • Mu
    • 4S 3C 3H 3S 3SII
    • V
  • N1
  • N-I
  • N-II
  • Naro-1
  • Pilot
  • Proton
    • UR-500
    • K
  • R-7
    • Luna
    • Molniya
      • M
    • Polyot
    • Soyuz
      • L
      • M
      • U2
    • Soyuz/Vostok
    • Sputnik
    • Voskhod
    • Vostok
      • L
      • K
      • 2
      • 2M
  • Saturn
    • I
    • IB
    • V
    • INT-21
  • Scout
  • SLV
  • Sparta
  • Thor
    • Able
    • Ablestar
    • Agena
    • Burner
    • Delta
    • DSV-2U
  • Thorad-Agena
  • Titan
    • II GLV
    • IIIA
    • IIIB
    • IIIC
    • IIID
    • IIIE
    • 34D
    • 23G
    • CT-3
    • IV
  • Tsyklon
    • 3
  • Vanguard
  • ‡ – Falcon 1 and 9 were designed for partial reuse, which was never achieved and has now been abandoned, however a fully-reusable Falcon 9 and Falcon Heavy are under long-term development.
United States orbital launch systems
Active
  • Antares
  • Atlas V
  • Delta
    • II
    • IV
  • Falcon 9
  • Minotaur
    • I
    • IV
  • Pegasus
  • Taurus
In development
  • Athena
    • Ic
    • IIc
  • Falcon Heavy
  • Minotaur V
  • SPARK
  • SLS
Retired
  • Ares
    • I
    • V
  • Athena
    • I
    • II
  • Atlas
    • B
    • D
    • E/F
    • G
    • H
    • I
    • II
    • III
    • LV-3B
    • SLV-3
    • Able
    • Agena
    • Centaur
  • Conestoga
  • Delta
    • A
    • B
    • C
    • D
    • E
    • G
    • J
    • L
    • M
    • N
    • 0100
    • 1000
    • 2000
    • 3000
    • 4000
    • 5000
    • III
  • Falcon 1
  • H-I*
  • Juno I
  • Juno II
  • N-I*
  • N-II*
  • Pilot
  • Saturn
    • I
    • IB
    • V
    • INT-21
  • Scout
  • Shuttle
  • Sparta
  • Thor
    • Able
    • Ablestar
    • Agena
    • Burner
    • Delta
    • DSV-2U
  • Thorad-Agena
  • Titan
    • II GLV
    • IIIA
    • IIIB
    • IIIC
    • IIID
    • IIIE
    • 34D
    • 23G
    • CT-3
    • IV
  • Vanguard
  • * - Japanese projects using US rockets or stages
Thor and Delta rockets
  • PGM-17 Thor
  • Thor family
  • Delta family
Rockets
Thor
  • Thor
  • Thor-Able
  • Thor-Ablestar
  • Thor-Agena
  • Thor-Burner
  • Thor-Delta
  • Thor DSV-2
  • Thor DSV-2U
  • Thorad-Agena
Delta
Alphabetical
  • Delta A
  • Delta B
  • Delta C
  • Delta D
  • Delta E
  • Delta F
  • Delta G
  • Delta J
  • Delta L
  • Delta M
  • Delta N
Numerical
  • Delta 0100
  • Delta 1000
  • Delta 2000
  • Delta 3000
  • Delta 4000
  • Delta 5000
  • Delta 6000
  • Delta 7000
  • Delta 8000
  • Delta 9000
Modern
Export
  • N-I
  • N-II
  • H-I
Launch sites
Canaveral
  • (S)LC-17
  • LC-18B
  • SLC-37B
Johnston
  • LE-1
  • LE-2
Tanegashima
  • Osaki
Vandenberg
  • SLC-1
  • SLC-2
  • SLC-3
  • SLC-6
  • SLC-10
Bases
  • Bardney
  • Breighton
  • Caistor
  • Carnaby
  • Catfoss
  • Coleby Grange
  • Driffield
  • Feltwell
  • Folkingham
  • Full Sutton
  • Harrington
  • Hemswell
  • Ludford Magna
  • Melton Mowbray
  • Mepal
  • North Luffenham
  • North Pickenham
  • Polebrook
  • Shepherds Grove
  • Tuddenham
Components
Boosters
  • Castor-1
  • Castor-1
  • Castor-4
  • Castor-4A
  • CBC
  • GEM-40
  • GEM-46
  • GEM-60
First stages
  • Common Booster Core
Upper Stages
Delta
  • Delta-A
  • Delta-D
  • Delta-E
  • Delta-F
  • Delta-K
  • Delta-P
  • DCSS
Other
  • Able
  • Ablestar
  • Agena
  • Altair
  • Burner
  • FW-4D
  • IABS
  • PAM-D
  • Star
  • UM-129
Engines
  • AJ-10
  • B-8048
  • B-8081
  • B-8096
  • LE-5
  • LR-79
  • MB-3
  • R-4D
  • RL10
  • RS-27
  • RS-68
  • TR-201
Manufacturers
Rocket
  • Douglas
  • McDonnell Douglas
  • Boeing
  • United Launch Alliance
Engines
  • Aerojet
  • Alliant
  • Rocketdyne
  • Thiokol
  • TRW
Launches
  • 1957–1959
  • 1960–1969
  • 1970–1979
  • 1980–1989
  • 1990–1999
  • 2000–2009
  • 2010–2019