Delta J

Launch history
Launch of the Delta J with Explorer 38
Function	Expendable launch system
Country of origin	United States
Status	Retired
Launch sites	Vandenberg SLC-2E
Total launches	1
Success(es)	1
UTC date of spacecraft launch	4 July 1968
[edit on Wikidata]

The Delta J, or Thor-Delta J was an American expendable launch system of the late 1960s. Only one was launched, with the Explorer 38 spacecraft. It was a member of the Delta family of rockets.

The Delta J was derived from the Delta E. The first stage was a Thor missile in the DSV-2C configuration, with three Castor-1 solid rocket boosters clustered around it. A Delta E was used as the second stage. The Altair third stage of the Delta E was replaced with the more powerful Star 37D SRM.

The only Delta J to fly was launched from Vandenberg Air Force Base Space Launch Complex 2E on 4 July 1968. It successfully placed the Explorer 38 satellite into medium Earth orbit.^[1]^[2]

References

^ Wade, Mark. "Delta". Archived from the original on 2008-07-24.
^ Krebs, Gunter. "Thor Family". Gunter's Space Page. Archived from the original on 2007-08-06. Retrieved 2021-12-21.

Orbital launch systems

Current

Angara
- 1.2
- A5
Atlas V
Ceres
- 1
- 1S
Chollima-1
Electron
Falcon 9 Block 5
Falcon Heavy
Firefly Alpha
Gravity-1
GSLV
H-IIA
H3
Hyperbola-1
Jielong
- 1
- 3
KAIROS^†
Kaituozhe 2
Kinetica-1
Kuaizhou
- 1
- 1A
- 11
Long March
- 2C
- 2D
- 2F
- 3A
- 3B/E
- 3C
- 4B
- 4C
- 5
- 5B
- 6
- 6A
- 7
- 7A
- 8
- 11
- 11H
LVM3
Minotaur
- I
- IV
- V
- C
Nuri
OS-M1^†
Pegasus XL
Proton-M
PSLV
Qaem 100
Qased
RS1^†
Shavit 2
Simorgh
SLS
- Block 1
Soyuz-2
- 2.1a / STA
- 2.1b / STB
- 2-1v
SSLV
Starship
Tianlong-2
Unha
Vega
- original
- C
Vulcan Centaur
Zenit
- 3SL
- 3SLB
- 3F
Zhuque
- 2

In development

Antares 330
Ariane 6
Bloostar
Cyclone-4M
Epsilon S
Eris
Gravity-2
Hyperbola-2
Irtysh
Kuaizhou
- 21
- 31
Long March
- 9
- 10
- 12
Miura 5
MLV
Neutron
New Glenn
New Line 1
NGLV
OS-M
- 2
- 4
Orbex Prime
Pallas-1
Red Dwarf
SLS
- Block 1B
- Block 2
Soyuz-7
Terran R
Tianlong-3
VLM
Vega E
Zero
Zhuque
- 3
Zuljanah

Retired

Antares
- 110
- 120
- 130^†
- 230
- 230+
Ariane
- 1
- 2
- 3
- 4
- 5
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
- II
- III
- IV
- IV Heavy
Diamant
Dnepr
Energia
Epsilon
Europa
- I^†
- II^†
Falcon 1
Falcon 9
- v1.0
- v1.1
- v1.2 "Full Thrust"
Feng Bao 1
GSLV
- Mk I
H-I
H-II
H-IIB
Juno I
Juno II
Kaituozhe-1
Kosmos
- original
- 1
- 2/2I
- 3
- 3M
Lambda
- 4S
LauncherOne
Long March
- 1
- 1D^†
- 2A
- 2E
- 3
- 3B
- 4A
Mu
- 4S
- 3C
- 3H
- 3S
- 3SII
- V
N1^†
N-I
N-II
Naro-1
Paektusan^†
Pilot-2^†
R-7
- Luna
- Molniya
  - M
  - L
- Polyot
- Soyuz
  - original
  - FG
  - L
  - M
  - U
  - U2
- Soyuz/Vostok
- Sputnik
- Voskhod
- Vostok
  - L
  - K
  - 2
  - 2M
R-29
- Shtil'
- Volna^†
Rocket 3
Safir
- 1
- 1A
- 1B
Saturn
- I
- IB
- V
Scout
- X-1
- Blue Scout II^†
- X-2^†
- X-2M
- X-3
- X-3M
- X-4
- X-2B^†
- B
- A
- B-1
- D-1
- A-1
- E-1
- F-1
- G-1
Shavit
- original
- 1
SLV
Space Shuttle
SPARK^†
Sparta
SS-520
Start-1
Terran 1^†
Thor
- Able
- Ablestar
  - 1
  - 2
- Agena
  - A
  - B
  - D
- Burner
  - 1
  - 2
- Delta
- DSV-2U
Thorad-Agena
- SLV-2G
- SLV-2H
Titan
- II GLV
- IIIA
- IIIB
- IIIC
- IIID
- IIIE
- 34D
- 23G
- CT-3
- IV
Tsyklon
- R-36-O
- original
- 2
- 3
Universal Rocket
- UR-500 Proton
- Proton-K
- Rokot
- Strela
Vanguard
VLS-1^†
Zenit
- 2
- 2M
- 2FG
Zhuque
- 1^†

Classes

This Template lists historical, current, and future space rockets that at least once attempted (but not necessarily succeeded in) an orbital launch or that are planned to attempt such a launch in the future
Symbol ^† indicates past or current rockets that attempted orbital launches but never succeeded (never did or has yet to perform a successful orbital launch)

v t e Orbital launch systems developed in the United States
Active	Atlas V**^†† Electron Falcon 9 Block 5 Falcon Heavy Firefly Alpha Minotaur I IV V C Pegasus XL RS1^† SLS Block 1 Starship Vulcan Centaur
In development	Antares 330 Daytona I Firefly Beta New Glenn Neutron Red Dwarf SLS Block 1B Block 2 Terran R
Retired	Antares 110/120/130/230/230+^††† 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 II III IV IV Heavy Falcon 1 Falcon 9 v1.0 v1.1 v1.2 "Full Thrust" H-I* Juno I Juno II LauncherOne N-I* N-II* Pilot Rocket 3 Saturn I IB V Scout Space Shuttle SPARK Sparta Terran 1 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 ** - uses Russian engines ^† - never succeeded ^†† - no new orders accepted ^††† - used Ukrainian first stage

Thor and Delta rockets

PGM-17 Thor
Thor family
Delta family

Rockets

Thor

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	Delta II Delta III Delta IV Delta IV Heavy

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