This list is a compilation of launches by NASA of (1) payloads that went into orbit or that achieved an altitude of at least 6400 kilometers and (2) major suborbital flight tests or experiments. Included are U.S. launches conducted by the Army Ballistic Missile Agency (ABMA) and the Naval Research Laboratory (NRL) before the establishment of NASA, 21 October 1958. Not listed are launch failures or sounding rocket launches.
Name
International
Designation
*
Launch Date **
Launch Vehicle ***
.
Explorer 1 (ABMA)
1958 Alpha 1
31 January 1958
Juno I
Vanguard 1 (NRL)
1958 Beta 2
17 March 1958
Vanguard
Explorer 3 (ABMA)
1958 Gamma 1
26 March 1958
Juno I
Explorer 4 (ABMA)
1958 Epsilon 1
26 July 1958
Juno I
Pioneer 1
1958 Eta 1
11 October 1958
Thor-Able I
Pioneer 3
1958 Theta 1
6 December 1958
Juno II
Vanguard 2
1959 Alpha 1
17 February 1959
Vanguard
Pioneer 4
1959 Nu 1
3 March 1959
Juno II
Explorer 6
1959 Delta 1
7 August 1959
Thor-Able III
Big Joe
(suborbital)
9 September 1959
Atlas
Vanguard 3
1959 Eta 1
18 September 1959
Vanguard
Little Joe 1
(suborbital)
4 October 1959
Little Joe
Explorer 7
1959 Iota 1
13 October 1959
Juno II
Shotput 1
(suborbital)
28 October 1959
Shotput
Little Joe 2
(suborbital)
4 November 1959
Little Joe
Little Joe 3
(suborbital)
4 December 1959
Little Joe
Shotput 2
(suborbital)
16 January 1960
Shotput
Little Joe 4
(suborbital)
21 January 1960
Little Joe
Shotput 3
(suborbital)
27 February 1960
Shotput
Pioneer 5
1960 Alpha 1
11 March 1960
Thor-Able IV
Shotput 4
(suborbital)
1 April 1960
Shotput
Tiros I
1960 Beta 2
1 April 1960
Thor-Able
Shotput 5
(suborbital)
31 May 1960
Shotput
Echo 1
1960 Iota 1
12 August 1960
Thor-Delta
Scout 2
(suborbital)
4 October 1960
Scout
Explorer 8
1960 Xi 1
3 November 1960
Juno II
Little Joe 5
(suborbital)
8 November 1960
Little Joe
Tiros 2
1960 Pi 1
23 November 1960
Thor-Delta
Mercury-Redstone 1A
(suborbital)
19 December 1960
Redstone
Mercury-Redstone 2
(suborbital)
31 January 1961
Redstone
Explorer 9
1961 Delta 1
16 February 1961
Scout
Mercury-Atlas 2
(suborbital)
21 February 1961
Atlas
Little Joe 5A
(suborbital)
18 March 1961
Little Joe
Mercury-Redstone BD
(suborbital)
24 March 1961
Redstone
Explorer 10
1961 Kappa 1
25 March 1961
Thor-Delta
Explorer 11
1961 Nu 1
27 April 1961
Juno II
Little Joe 5B
(suborbital)
28 April 1961
Little Joe
Freedom 7 (Mercury-Redstone 3)
(suborbital)
5 May 1961
Redstone
Tiros 3
1961 Rho 1
12 July 1961
Thor-Delta
Liberty Bell (Mercury-Redstone 4)
7
(suborbital)
21 July 1961
Redstone
Explorer 12
1961 Upsilon 1
13 August 1961
Thor-Delta
Ranger 1
1961 Phi 1
23 August 1961
Atlas-Agena B
Explorer 13
1961 Chi 1
25 August 1961
Scout
Mercury-Atlas 4
1961 Alpha Alpha 1
13 September 1961
Atlas D
Probe A (P-21)
(suborbital)
19 October 1961
Scout
Saturn-Apollo 1 (SA-1)
(suborbital)
27 October 1961
Saturn 1
Ranger 2
1961 Alpha Theta 1
18 November 1961
Atlas-Agena B
Mercury-Atlas 5
1961 Alpha Iota 1
29 November 1961
Atlas D
Echo(AVT-1)
(suborbital)
15 January 1962
Thor
Ranger 3
1962 Alpha 1
26 January 1962
Atlas-Agena B
Tiros 4
1962 Beta 1
8 February 1962
Thor-Delta
Friendship 7 (Mercury-Atlas 6)
1962 Gamma 7
20 February 1962
Mercury-Atlas D
Reentry 1
(suborbital)
1 March 1962
Scout
OSO 1
1962 Zeta 1
7 March 1962
Thor-Delta
Probe B (P-21A)
(suborbital)
29 March 1962
Scout
Ranger 4
1962 Mu 1
23 April 1962
Atlas-Agena B
Saturn-Apollo 2 (SA-2)
(suborbital)
25 April 1962
Saturn 1
Ariel 1
1962 Omicron 1
26 April 1962
Thor-Delta
Aurora 7 (Mercury-Atlas 7)
1962 Tau 1
24 May 1962
Atlas D
Tiros 5
1962 Alpha Alpha
19 June 1962
Thor-Delta
Telstar 1
1962 Alpha Epsilon 1
10 July 1962
Thor-Delta
Echo (AVT-2)
(suborbital)
18 July 1962
Thor
Mariner 2
1962 Alpha Rho 1
27 August 1962
Atlas-Agena B
Tiros 6
1962 Alpha Psi 1
18 September 1962
Thor-Delta
Alouette 1
1962 Beta Alpha 1
28 September 1962
Thor-Agena B
Explorer 14
1962 Beta Gamma 1
2 October 1962
Thor-Delta
Sigma 7 (Mercury-Atlas 8)
1962 Beta Delta 1
3 October 1962
Atlas D
Ranger 5
1962 Beta Eta 1
18 October 1962
Atlas-Agena B
Explorer 15
1962 Beta Lambda 1
27 October 1962
Thor-Delta
Saturn-Apollo 3 (SA-3)
(suborbital)
16 November 1962
Saturn I
Relay 1
1962 Beta Upsilon 1
13 December 1962
Thor-Delta
Explorer 16
1962 Beta Chi 1
16 December 1962
Scout
Syncom 1
1963-4A
14 February 1963
Thor-Delta
Saturn-Apollo 4 (SA-4)
(suborbital)
28 March 1963
Saturn I
Explorer 17
1963-9A
2 April 1963
Thor-Delta
Telstar 2
1963-13A
7 May 1963
Thor-Delta
Faith 7 (Mercury-Atlas 9)
1963-15A
15 May 1963
Atlas D
Tiros 7
1963-24A
19 June 1963
Thor-Delta
Syncom 2
1963-31A
26 July 1963
Thor-Delta
Little Joe II
(suborbital)
28 August 1963
Little Joe II
Explorer 18
1963-46A
26 November 1963
Thor-Delta
Atlas-Centaur 2
1963-47A
27 November 1963
Atlas-Centaur
Explorer 19
1963-53A
19 December 1963
Scout
Tiros 8
1963-54A
21 December 1963
Thor-Delta
Relay 2
1964-3A
21 January 1964
Thor-Delta
Echo 2
1964-4A
25 January 1964
Thor-Agena B
Saturn-Apollo 5 (SA-5)
1964-5A
29 January 1964
Saturn I
Ranger 6
1964-7A
30 January 1964
Atlas-Agena B
Ariel 2
1964-15A
27 March 1964
Scout
Gemini-Titan 1
1964-18A
9 April 1964
Gemini-Titan II
FIRE 1
(suborbital)
14 April 1964
Atlas D
Apollo (A-001) Transonic Abort
(suborbital)
13 May 1964
Little Joe II
Apollo-Saturn 101 (SA-6)
1964-25A
28 May 1964
Saturn I
Atlas-Centaur 3
(suborbital)
30 June 1964
Atlas-Centaur
SERT 1
(suborbital)
20 July 1964
Scout
Ranger 7
1964-41A
28 July 1964
Atlas-Agena B
Reentry 4
(suborbital)
18 August 1964
Scout
Syncom 3
1964-47A
19 August 1964
TAT-Delta
Explorer 20
1964-51A
25 August 1964
Scout
Nimbus 1
1964-52A
28 August 1964
Thor-Agena B
OGO 1
1964-54A
4 September 1964
Atlas-Agena B
Apollo-Saturn 102 (SA-7)
1964-57A
18 September 1964
Saturn I
Explorer 21
1964-60
4 October 1964
Thor-Delta
Explorer 22
1964-64A
9 October 1964
Scout
Mariner 3
1964-73A
5 November 1964
Atlas-Agena D
Explorer 23
1964-74A
6 November 1964
Scout
Explorer 24 and Explorer 25 (Injun
4)
1964-76A,1964-76B
21 November 1964
Scout
Mariner 4
1964-77A
28 November 1964
Atlas-Agena D
Apollo Maximum Abort
(suborbital)
8 December 1964
Little Joe II
Atlas-Centaur 4
1964-82A
11 December 1964
Atlas-Centaur
San Marco 1
1964-84A
15 December 1964
Scout
Explorer 26
1964-86
21 December 1964
Thor-Delta
Gemini-Titan 2
(suborbital)
19 January 1965
Titan II
Tiros 9
1965-4A
22 January 1965
Thor-Delta
OSO 2
1965-7A
3 February 1965
Thor-Delta
Pegasus I and Apollo-Saturn 103
(SA-9)
1965-9A, 1965-9B
16 February 1965
Saturn I
Ranger 8
1965-10A
17 February 1965
Atlas-Agena B
Ranger 9
1965-23A
21 March 1965
Atlas-Agena B
Gemini 3 (Gemini-Titan 3)
1965-24A
23 March 1965
Titan II
Early Bird 1
1965-28A
6 April 1965
TAT-Delta
Explorer 27
1965-32A
29 April 1965
Scout
FIRE 2
(suborbital)
22 May 1965
Atlas D
Pegasus 2 and Apollo-Saturn 104
(SA-8)
1965-39A, 1965-39B
25 May 1965
Saturn I
Explorer 28
1965-42A
28 May 1965
Thor-Delta
Gemini 4(Gemini-Titan 4)
1965-43A
3 June 1965
Titan II
Tiros 10
1965-51A
2 July 1965
TAT-Delta
Pegasus 3 and Apollo-Saturn 105
(SA-10)
1965-60A,1965-60B
30 July 1965
Saturn I
Scout (SEV-A)
1965-63
10 August 1965
Scout
Centaur-Surveyor (Atlas-Centaur
6)
1965-64
11 August 1965
Atlas-Centaur
Gemini 5 (Gemini-Titan 5)
1965-68A
21 August 1965
Titan II
OGO 2
1965-81A
14 October 1965
TAT-Agena D
Explorer 29 (GEOS 1)
1965-89A
6 November 1965
TAID
Explorer 30
1965-93A
18 November 1965
Scout
Alouette 2 and Explorer 31
1965-98A, 1965-98B
28 November 1965
Thor-Agena B
Gemini 7 (Gemini-Titan 7)
1965-100A
4 December 1965
Titan II
FR-1
1965-101A
6 December 1965
Scout
Gemini 6 (Gemini-Titan 6)
1965-104A
15 December 1965
Titan II
Pioneer 6
1965-105A
16 December 1965
TAID
Apollo (A-004) Intermediate Altitude
Abort
(suborbital)
20 January 1966
Little Joe II
ESSA 1
1966-8A
3 February 1966
Thor-Delta
Reentry 5
(suborbital)
9 February 1966
Scout
Apollo-Saturn 201
(suborbital)
26 February 1966
Saturn IB
ESSA 2
1966-16A
28 February 1966
TAID
Gemini-Agena Target Vehicle 8
1966-19A
16 March 1966
Atlas-Agena
Gemini 8 (Gemini-Titan 8)
1966-20A
16 March 1966
Titan II
Centaur-Surveyor (Atlas-Centaur
8)
1966-30A
7 April 1966
Atlas-Centaur
OAO 1
1966-31A
8 April 1966
Atlas-Agena D
Nimbus 2
1966-40A
15 May 1966
TAT-Agena B
Explorer 32
1966-44A
25 May 1966
Thor-Delta
Surveyor 1
1966-45A
30 May 1966
Atlas-Centaur
Augmented Target Docking
Adapter
1966-46A
1 June 1966
Atlas D
Gemini 9
1966-47A
3 June 1966
Titan II
OGO 3
1966-49A
6 June 1966
Atlas-Agena B
PAGEOS 1
1966-56A
23 June 1966
TAT-Agena D
Explorer 33
1966-58A
1 July 1966
TAID
Apollo-Saturn 203
1966-59A
5 July 1966
Saturn IB
Gemini-Agena Target Vehicle 10
1966-65A
18 July 1966
Atlas-Agena D
Gemini 10 (Gemini-Titan 10)
1966-66A
18 July 1966
Titan II
Lunar Orbiter 1
1966-73A
10 August 1966
Atlas-Agena D
Pioneer 7
1966-75A
17 August 1966
TAID
Apollo-Saturn 202
(suborbital)
25 August 1966
Saturn IB
Gemini-Agena Target Vehicle 11
1966-80A
12 September 1966
Atlas-Agena D
Gemini 11 (Gemini-Titan 11)
1966-81A
12 September 1966
Titan II
Surveyor 2
1966-84A
20 September 1966
Atlas-Centaur
ESSA 3
1966-87A
2 October 1966
TAID
Centaur-Surveyor (Atlas-Centaur
9)
1966-95A
25 October 1966
Atlas-Centaur
Intelsat-II F-1 (Intelsat
II-A)
1966-96A
27 October 1966
TAID
Lunar Orbiter 2
1966-100A
6 November 1966
Atlas-Agena D
Gemini-Agena Target Vehicle 12
1966-103A
11 November 1966
Atlas-Agena D
Gemini 12 (Gemini-Titan 12)
1966-104A
11 November 1966
Titan II
ATS 1
1966-110A
6 December 1966
Atlas-Agena D
Biosatellite 1
1966-114A
14 December 1966
TAID
Intelsat-II F-2
1967-1A
11 January 1967
TAID
ESSA 4
1967-6A
26 January 1967
TAID
Lunar Orbiter 3
1967-8A
4 February 1967
Atlas-Agena D
OSO 3
1967-20A
8 March 1967
Thor-Delta
Intelsat II F-3
1967-26A
22 March 1967
TAID
ATS 2
1967-31A
5 April 1967
Atlas-Agena D
Surveyor 3
1967-35A
17 April 1967
Atlas-Centaur
ESSA 5
1967-36A
20 April 1967
TAID
San Marco 2
1967-38A
26 April 1967
Scout
Lunar Orbiter 4
1967-41A
4 May 1967
Atlas-Agena D
Ariel 3
1967-42A
5 May 1967
Scout
Explorer 34
1967-51A
24 May 1967
TAID
Mariner 5
1967-60A
14 June 1967
Atlas-Agena D
Surveyor 4
1967-68A
14 July 1967
Atlas-Centaur
Explorer 35
1967-70A
19 July 1967
TAID
OGO 4
1967-73A
28 July 1967
TAT-Agena D
Lunar Orbiter 5
1967-75A
1 August 1967
Atlas-Agena D
Biosatellite 2
1967-83A
7 September 1967
TAID
Surveyor 5
1967-84A
8 September 1967
Atlas-Centaur
Intelsat-II F-4
1967-94A
27 September 1967
TAID
OSO 4
1967-100A
18 October 1967
Thor-Delta
RAM C-1
(suborbital)
19 October 1967
Scout
ATS 3
1967-111A
5 November 1967
Atlas-Agena D
Surveyor 6
1967-112A
7 November 1967
Atlas-Centaur
Apollo 4 (Apollo-Saturn 501)
1967-113A
9 November 1967
Saturn V
ESSA 6
1967-114A
10 November 1967
TAID
Pioneer 8 and TTS 1
1967-123A, 1967-123B
13 December 1697
TAID
Surveyor 7
1968-1A
7 January 1968
Atlas-Centaur
Explorer 36
1968-2A
11 January 1968
TAID
Apollo 5 (Apollo-Saturn 204)
1968-7A
22 January 1968
Saturn IB
OGO 5
1968-14A
4 March 1968
Atlas-Agena D
Explorer 37
1968-17A
5 March 1968
Scout
Apollo 6 (Apollo-Saturn 502)
1968-25A
4 April 1968
Saturn V
Reentry 6
1968-41A
14 May 1968
Scout
IRIS 1
1968-41A
16 May 1968
Scout
Explorer 38
1968-55A
4 July 1968
TAID
Explorer 39 and Explorer 40 (Injun
5)
1968-66A, 1968-66B
8 August 1968
Scout
ATS 4
1968-68A
10 August 1968
Atlas-Centaur
ESSA 7
1968-69A
16 August 1968
LTTAT-Delta
RAM C-2
(suborbital)
22 August 1968
Scout
Aurorae
1968-84A
3 October 1968
Scout
Apollo 7 (Apollo-Saturn 205)
1968-89A
11 October 1968
Saturn IB
Pioneer 9 and TETR 2
1968-100A,1968-100B
8 November 1968
TAID
HEOS 1
1968-109A
5 December 1968
TAID
OAO 2
1968-110A
7 December 1968
Atlas-Centaur
ESSA 8
1968-114A
15 December 1968
LTTAT-Delta
Intelsat-III F-2
1968-116A
18 December 1968
LTTAT-Delta
Apollo 8 (Apollo-Saturn 503)
1968-118A
21 December 1968
Saturn V
OSO 5
1969-6A
22 January 1969
Thor-Delta
ISIS 1
1969-9A
30 January 1969
TAID
Intelsat-III F-3
1969-11A
5 February 1969
LTTAT-Delta
Mariner 6
19769-14A
24 February 1969
Atlas-Centaur
ESSA 9
1969-16A
26 February 1969
TAID
Apollo 9 (Apollo-Saturn 504)
1969-18A
3 March 1969
Saturn V
Mariner 7
1969-30A
27 March 1969
Atlas-Centaur
Nimbus 3
1969-37A
14 April 1969
LTTAT-Agena D
Apollo 10 (Apollo-Saturn 505)
1969-43A
18 May 1969
Saturn V
Intelsat-III F-4
1969-45A
21 May 1969
LTTAT-Delta
OGO 6
1969-51A
5 June 1969
LTTAT-Agena D
Explorer 41
1969-53A
21 June 1969
TAID
Biosatellite 3
1969-56A
28 June 1969
LTTAT-Delta
Apollo 11 (Apollo-Saturn 506)
1969-59A
16 July 1969
Saturn V
Intelsat-III F-5
1969-64A
25 July 1969
LTTAT-Delta
OSO 6 and PAC
1969-68A, 1969-68A
9 August 1969
LTTAT-Delta
ATS 5
1969-69A
12 August 1969
Atlas-Centaur
Boreas
1969-83A
1 October 1969
Scout
Azur
1969-97A
7 November 1969
Scout
Apollo 12 (Apollo-Saturn 507)
1969-99A
14 November 1969
Saturn V
Skynet A
1969-101A
21 November 1969
LTTAT-Delta
Intelsat-III F-6
1970-3A
14 January 1970
LTTAT-Delta
ITOS 1 and OSCAR 5
1970-8A, 1970-8B
23 January 1970
LTTAT-Delta
SERT 2
1970-9A
3 February 1970
LTTAT-Agena D
NATOSAT 1
1970-21A
20 March 1970
LTTAT-Delta
Nimbus 4
1970-25A
8 April 1970
LTTAT-Agena D
Apollo 13 (Apollo-Saturn 508)
1970-29A
11 April 1970
Saturn V
Intelsat-III F-7
1970-32A
22 April 1970
LTTAT-Delta
Intelsat-III F-8
1970-55A
23 July 1970
LTTAT-Delta
Skynet B
1970-62A
19 August 1970
LTTAT-Delta
RAM C-3
(suborbital)
30 September 1970
Scout
OFO and RM
1970-94A, 1970-94B
9 November 1970
Scout
NOAA 1 and CEPE
1970-106A, 1970-106B
11 December 1970
LTTAT-Delta
Explorer 42
1970-107A
12 December 1970
Scout
Intelsat-IV F-2
1971-6A
25 January 1971
Atlas-Centaur
Apollo 14 (Apollo-Saturn 509)
1971-8A
31 January 1971
Saturn V
NATOSAT 2
1971-9A
2 February 1971
LTTAT-Delta
Explorer 43
1971-19A
13 March 1971
TAID
ISIS 2
1971-24A
31 March 1971
TAID
San Marco 3
1971-36A
24 April 1971
Scout
Mariner 9
1971-51A
30 May 1971
Atlas-Centaur
PAET
(suborbital)
20 June 1971
Scout
Explorer 44
1971-58A
8 July 1971
Scout
Apollo 15 (Apollo-Saturn 510)
1971-63A
26 July 1971
Saturn V
Eole
1971-71A
16 August 1971
Scout
OSO 7 and TETR 3
1971-83A, 1971-83B
29 September 1971
LTTAT-Delta
Explorer 45
1971-96A
15 November 1971
Scout
Ariel 4
1971-109A
11 December 1971
Scout
Intelsat-IV F-3
1971-116A
19 December 1971
Atlas-Centaur
Intelsat-IV F-4
1972-3A
22 January 1972
Atlas-Centaur
HEOS 2
1972-5A
31 January 1972
LTTAT-Delta
Pioneer 10
1972-12A
2 March 1972
Atlas-Centaur-TE-M-364-4
TD-1A
1972-14A
11 March 1972
LTTAT-Delta
Apollo 16 (Apollo-Saturn 511)
1972-31A
16 April 1972
Saturn V
Intelsat-VI F-5
1972-41A
13 June 1972
Atlas-Centaur
ERTS 1
1972-58A
23 July 1972
LTTAT-Delta
Explorer 46
1972-61A
13 August 1972
Scout
OAO 3
1972-65A
21 August 1972
Atlas-Centaur
Triad OI-1X
1972-69A
2 September 1972
Scout
Explorer 47
1972-73A
22 September 1972
LTTAT-Delta
NOAA 2 and OSCAR 6
1972-82A, 1972-82B
15 October 1972
LTTAT-Delta
Anik 1
1972-90A
9 November 1972
LTTAT-Delta
Explorer 48
1972-91A
16 November 1972
Scout
ESRO 4
1972-92A
21 November 1972
Scout
Apollo 17 (AS-512)
1972-96A
7 December 1972
Saturn V
Nimbus 5
1972-97A
10 December 1972
LTTAT-Delta
Aeros
1972-100A
16 December 1972
Scout
Pioneer 11
1973-19A
5 April 1973
Atlas-Centaur-TE-M-374-4
Anik 2
1973-23A
20 April 1973
LTTAT-Delta
Skylab 1
1973-27A
14 May 1973
Saturn V
Skylab 2
1973-32A
25 May 1973
Saturn IB
Explorer 49
1973-39A
10 June 1973
LTTAT-Delta
Skylab 3
1973-50A
28 July 1973
Saturn IB
Intelsat-IV F-7
1973-58A
23 August 1973
Atlas-Centaur
Explorer 50
1973-78A
25 October 1973
LTTAT-Delta
NNSS-O-20
1973-81A
29 October 1973
Scout
Mariner 10
1973-85A
3 November 1973
Atlas-Centaur
NOAA 3
1973-86A
6 November 1973
LTTAT-Delta
Skylab 4
1973-90A
16 November 1973
Saturn IB
Explorer 51
1973-101A
15 December 1973
LTTAT-Delta
Skynet IIA
1974-2A
18 January 1974
LTTAT-Delta
San Marco 4
1974-9A
18 February 1974
Scout
Miranda (UK-X4)
1974-13A
8 March 1974
Scout
Westar 1
1974-22a
13 April 1974
LTTAT-Delta
SMS 1
1974-33A
17 May 1974
LTTAT-Delta
ATS 6
1974-39A
30 May 1974
Titan IIIC
Hawkeye 1 (Explorer 52)
1974-40A
3 June 1974
Scout
Aeros 2
1974-55A
16 July 1974
Scout
ANS
1974-70A
30 August 1974
Scout
Westar 2
1974-75A
10 October 1974
LTTAT-Delta
Ariel 5(UK-5)
1974-77A
15 October 1974
Scout
NOAA 4 and OSCAR 7 and INTASAT
1974-89A, 1974-89B, 1974-89C
15 November 1974
LTTAT-Delta
Intelsat-IV F-8
1974-93A
21 November 1974
Atlas-Centaur
Skynet IIB
1974-94A
24 November 1974
LTTAT-Delta
Helios 1
1974-97A
10 December 1974
Titan IIIE-Centaur-TE-M-364-4
Symphonie 1
1974-101a
18 December 1974
LTTAT-Delta
* For simplicity, manned Apollo flights are represented in this list by single designations (lunar orbital and landing missions have separate letter designations in the international system for lunar module and S-IVB stage). Suborbital flights are not assigned international designations.
** Date given is determined by local time at the launch site.
***Thor-Delta launch vehicle configurations are abbreviated as follows: Thor-Delta (Thor-Delta, Thor-improved Delta), TAT-Delta (thrust-augmented Thor-Delta), TAID (thrust-augmented Thor-improved Delta), LTTAT-Delta (long-tank, thrust-augmented Thor-improved Delta), TAT-Agena (thrust-augmented Thor-Agena).