Encyclopedia Astronautica
Delta 1604


American orbital launch vehicle. Four stage vehicle consisting of 6 x Castor 2 + 1 x ELT Thor/MB-3 + 1 x Delta F + 1 x Star 37C

LEO Payload: 600 kg (1,320 lb). Payload: 600 kg (1,320 lb) to a GTO.

Status: Retired 1973.
Gross mass: 118,000 kg (260,000 lb).
Payload: 600 kg (1,320 lb).
Height: 35.00 m (114.00 ft).
Diameter: 2.44 m (8.00 ft).
Apogee: 200,000 km (120,000 mi).
First Launch: 1972.09.23.
Last Launch: 1973.10.26.
Number: 2 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • IMP American earth magnetosphere satellite. 10 launches, 1963.11.27 (Explorer 18) to 1973.10.26 (Explorer 50). 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
  • Cape Canaveral America's largest launch center, used for all manned launches. Today only six of the 40 launch complexes built here remain in use. Located at or near Cape Canaveral are the Kennedy Space Center on Merritt Island, used by NASA for Saturn V and Space Shuttle launches; Patrick AFB on Cape Canaveral itself, operated the US Department of Defense and handling most other launches; the commercial Spaceport Florida; the air-launched launch vehicle and missile Drop Zone off Mayport, Florida, located at 29.00 N 79.00 W, and an offshore submarine-launched ballistic missile launch area. All of these take advantage of the extensive down-range tracking facilities that once extended from the Cape, through the Caribbean, South Atlantic, and to South Africa and the Indian Ocean. More...
  • Cape Canaveral LC17B Delta launch complex. Part of a dual launch pad complex built for the Thor ballistic missile program in 1956. Upgraded over the decades for use with Thor, Delta, Delta II, and Delta III launch vehicles, it remained in use for over half a century. 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...
  • Star 37C Solid rocket stage. 45.00 kN (10,116 lbf) thrust. Mass 1,048 kg (2,310 lb). More...

Delta 1604 Chronology


1972 September 23 - . 01:20 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Delta. Launch Vehicle: Delta 1604. LV Configuration: Delta 1604 579/D90.
  • Explorer 47 - . Payload: IMP H. Mass: 376 kg (828 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Earth. Type: Magnetosphere satellite. Spacecraft: IMP. USAF Sat Cat: 6197 . COSPAR: 1972-073A. Apogee: 235,600 km (146,300 mi). Perigee: 201,100 km (124,900 mi). Inclination: 17.2000 deg. Period: 17,670.00 min. Summary: Investigated cislunar radiation, Earth's magnetosphere, interplantary magnetic field. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). .

1973 October 26 - . 02:26 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Delta. Launch Vehicle: Delta 1604. LV Configuration: Delta 1604 582/D97.
  • Explorer 50 - . Payload: IMP J. Mass: 371 kg (817 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Earth. Type: Magnetosphere satellite. Spacecraft: IMP. USAF Sat Cat: 6893 . COSPAR: 1973-078A. Apogee: 244,361 km (151,838 mi). Perigee: 190,749 km (118,525 mi). Inclination: 31.6000 deg. Period: 17,576.70 min. Summary: Solar flare and radiation monitor. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

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