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Thor Delta E
Part of Thor Family
Delta E
Delta E
Credit: © Thomas Kladiva - Thomas Kladiva
American orbital launch vehicle. Thor augmented with 3 x Castor 2 motors with Delta E and Altair 2 upper stage.

AKA: Delta E;Thrust Augmented Thor. Status: Retired 1967. First Launch: 1965-11-06. Last Launch: 1967-04-20. Number: 6 . Payload: 540 kg (1,190 lb). Thrust: 1,452.90 kN (326,625 lbf). Gross mass: 69,023 kg (152,169 lb). Height: 31.00 m (101.00 ft). Diameter: 2.44 m (8.00 ft). Apogee: 400,000 km (240,000 mi).

LEO Payload: 540 kg (1,190 lb). Payload: 150 kg (330 lb) to a GTO. Flyaway Unit Cost 1985$: 13.930 million.

Stage Data - Delta E

  • Stage 0. 3 x Castor 2. Gross Mass: 4,424 kg (9,753 lb). Empty Mass: 695 kg (1,532 lb). Thrust (vac): 258.915 kN (58,206 lbf). Isp: 262 sec. Burn time: 37 sec. Isp(sl): 232 sec. Diameter: 0.79 m (2.59 ft). Span: 0.79 m (2.59 ft). Length: 6.04 m (19.81 ft). Propellants: Solid. No Engines: 1. Engine: TX-354-3. Status: In Production.
  • Stage 1. 1 x Delta Thor TA. Gross Mass: 49,442 kg (109,000 lb). Empty Mass: 3,175 kg (6,999 lb). Thrust (vac): 866.710 kN (194,844 lbf). Isp: 290 sec. Burn time: 150 sec. Isp(sl): 256 sec. Diameter: 2.44 m (8.00 ft). Span: 2.44 m (8.00 ft). Length: 18.41 m (60.40 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: MB-3-3. Other designations: Thrust Augmented Thor. Status: Out of Production.
  • Stage 2. 1 x Delta E. Gross Mass: 6,009 kg (13,247 lb). Empty Mass: 785 kg (1,730 lb). Thrust (vac): 35.098 kN (7,890 lbf). Isp: 278 sec. Burn time: 400 sec. Isp(sl): 0.0000 sec. Diameter: 1.40 m (4.50 ft). Span: 1.40 m (4.50 ft). Length: 6.28 m (20.60 ft). Propellants: Nitric acid/UDMH. No Engines: 1. Engine: AJ10-118E. Status: Out of Production.
  • Stage 3. 1 x FW-4D. Gross Mass: 300 kg (660 lb). Empty Mass: 25 kg (55 lb). Thrust (vac): 24.997 kN (5,620 lbf). Isp: 287 sec. Burn time: 31 sec. Isp(sl): 250 sec. Diameter: 0.50 m (1.64 ft). Span: 0.50 m (1.64 ft). Length: 1.48 m (4.85 ft). Propellants: Solid. No Engines: 1. Engine: FW4-D. Status: Out of Production.



Family: orbital launch vehicle. Country: USA. Engines: AJ10-118E, MB-3-3. Spacecraft: TIROS, IMP, GEOS, Pioneer 6-7-8-9-E, TOS, Intelsat 2, TTS, HEOS, Isis. Projects: Explorer, Pioneer series. Launch Sites: Cape Canaveral, Vandenberg, Cape Canaveral LC17B, Cape Canaveral LC17A, Vandenberg SLC2E. Stages: Delta Thor TA, Altair 3D, Altair 2, Delta E, Castor 1, Castor 2. Agency: Douglas.
Photo Gallery

Delta E1 no. 44  Delta E1 no. 44
Delta E1 no. 44 - COSPAR 1967-001



1965 November 6 - . 18:38 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Thor Delta E.
  • Explorer 29 - . Payload: GEOS A. Mass: 175 kg (385 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Astronomy. Type: Solar satellite. Spacecraft: GEOS. USAF Sat Cat: 1726 . COSPAR: 1965-089A. Apogee: 2,269 km (1,409 mi). Perigee: 1,120 km (690 mi). Inclination: 59.4000 deg. Period: 120.30 min.

    The primary objective of GEOS-A was to provide global geodetic measurements for determining the positions of fiducial control points on the Earth to an accuracy of 10 meters in an Earth centre of mass co-ordinate system, and to determine the structure of the Earth's gravity field to 5 parts in 10 million. Instrumentation included (1) four optical beacons, (2) laser reflectors, (3) a radio range transponder, (4) Doppler beacons, and (5) a range and range rate transponder. These were designed to operate simultaneously to fulfil the objectives of locating observation points (geodetic control stations) in a three dimensional earth centre-of-mass co-ordinate system within 10 m of accuracy, of defining the structure of the earth's irregular gravitational field and refining the locations and magnitudes of the large gravity anomalies, and of comparing results of the various systems onboard the spacecraft to determine the most accurate and reliable system. In January 1967, a failure in the satellite's command system rendered several geodetic systems inoperable. Radio doppler measurements and the passive laser reflector experiment could continue indefinitely, however. Additional Details: here....


1965 December 16 - . 07:31 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Thor Delta E.
  • Pioneer 6 - . Payload: Pioneer A. Mass: 63 kg (138 lb). Nation: USA. Agency: NASA Ames. Program: Pioneer. Class: Astronomy. Type: Solar satellite. Spacecraft: Pioneer 6-7-8-9-E. USAF Sat Cat: 1841 . COSPAR: 1965-105A. Measured solar wind, Sun's magnetic field. Solar Orbit (Heliocentric). Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B)..

1966 February 28 - . 13:58 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Thor. Launch Vehicle: Thor Delta E.
  • ESSA 2 - . Payload: Tiros OT2. Mass: 132 kg (291 lb). Nation: USA. Agency: ESSA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: Tiros. USAF Sat Cat: 2091 . COSPAR: 1966-016A. Apogee: 1,415 km (879 mi). Perigee: 1,355 km (841 mi). Inclination: 101.3000 deg. Period: 113.50 min. Environmental Survey Satellite; carried APT cameras. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

1966 October 2 - . 10:39 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Thor. Launch Vehicle: Thor Delta E.
  • ESSA 3 - . Payload: TOS A. Mass: 145 kg (319 lb). Nation: USA. Agency: ESSA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: TOS. USAF Sat Cat: 2435 . COSPAR: 1966-087A. Apogee: 1,486 km (923 mi). Perigee: 1,387 km (861 mi). Inclination: 100.9000 deg. Period: 114.60 min. Environmental Survey Satellite 3; replace ESSA 1. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

1967 January 26 - . 17:31 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Thor. Launch Vehicle: Thor Delta E.
  • ESSA 4 - . Payload: TOS B. Mass: 132 kg (291 lb). Nation: USA. Agency: ESSA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: TOS. USAF Sat Cat: 2657 . COSPAR: 1967-006A. Apogee: 1,440 km (890 mi). Perigee: 1,326 km (823 mi). Inclination: 102.0000 deg. Period: 113.40 min. Replaced ESSA 2. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

1967 April 20 - . 11:21 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Thor. Launch Vehicle: Thor Delta E.
  • ESSA 5 - . Payload: TOS C. Mass: 145 kg (319 lb). Nation: USA. Agency: ESSA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: TOS. USAF Sat Cat: 2757 . COSPAR: 1967-036A. Apogee: 1,422 km (883 mi). Perigee: 1,355 km (841 mi). Inclination: 102.0000 deg. Period: 113.50 min. Replaced ESSA 3. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..


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