Encyclopedia Astronautica
Delta 1900


American orbital launch vehicle. Three stage vehicle consisting of 9 x Castor 2 + 1 x ELT Thor/MB-3 + 1 x Delta F

Status: Retired 1973.
Gross mass: 130,000 kg (280,000 lb).
Height: 35.00 m (114.00 ft).
Diameter: 2.44 m (8.00 ft).
Thrust: 2,410.00 kN (541,780 lbf).
Apogee: 4,000 km (2,400 mi).
First Launch: 1973.12.16.
Number: 1 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • AE American earth atmosphere satellite. 5 launches, 1963.04.03 (Explorer 17) to 1975.11.20 (Explorer 55). Atmospheric research. More...

See also
  • Delta The Delta launch vehicle was America's longest-lived, most reliable, and lowest-cost space launch vehicle. Development began in 1955 and it continued in service in the 21st Century despite numerous candidate replacements. More...

Associated Manufacturers and Agencies
  • Douglas American manufacturer of rockets, spacecraft, and rocket engines. Boeing Huntington Beach, Huntington Beach, CA, USA. More...

Associated Programs
  • Explorer Series of satellites launched by Jet Propulsion Laboratory for the exploration of the space environment (micrometeoroids, charged particles, radiation, etc) from both earth orbital and heliocentric orbital locations. More...

Associated Launch Sites
  • Vandenberg Vandenberg Air Force Base is located on the Central Coast of California about 240 km northwest of Los Angeles. It is used for launches of unmanned government and commercial satellites into polar orbit and intercontinental ballistic missile test launches toward the Kwajalein Atoll. More...
  • Vandenberg SLC2W Delta launch complex. Originally a Thor 75 SMS launch pad. Upgraded to a space launch complex in 1966. More...

Associated Stages
  • Castor 2 Solid propellant rocket stage. Loaded/empty mass 4,424/695 kg. Thrust 258.92 kN. Vacuum specific impulse 262 seconds. More...
  • Delta F Nitric acid/UDMH propellant rocket stage. Loaded/empty mass 5,629/784 kg. Thrust 41.36 kN. Vacuum specific impulse 280 seconds. More...
  • Delta Thor ELT Lox/Kerosene propellant rocket stage. Loaded/empty mass 84,067/4,059 kg. Thrust 1,030.21 kN. Vacuum specific impulse 296 seconds. More...

Delta 1900 Chronology


1973 December 16 - . 06:18 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Delta 1900. LV Configuration: Delta 1900 585/D99.
  • Explorer 51 - . Payload: AE C. Mass: 658 kg (1,450 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Earth. Type: Atmosphere satellite. Spacecraft: AE. Decay Date: 1978-12-12 . USAF Sat Cat: 6977 . COSPAR: 1973-101A. Apogee: 4,306 km (2,675 mi). Perigee: 155 km (96 mi). Inclination: 68.1000 deg. Period: 132.50 min. Summary: Atmospheric Explorer; upper atmospheric research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

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