Encyclopedia Astronautica
Delta 7920-10L


American orbital launch vehicle. Three stage vehicle consisting of 9 x GEM-40 + 1 x EELT Thor/RS-27A + 1 x Delta K with 3.05 m (10 foot) diameter long fairing

Status: Active.
Gross mass: 232,000 kg (511,000 lb).
Height: 40.00 m (131.00 ft).
Diameter: 2.44 m (8.00 ft).
First Launch: 2002.05.04.
Last Launch: 2009.03.07.
Number: 3 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • Aqua American earth sea satellite. One launch, 2002.05.04. Aqua was also designated the EOS-PM Earth Observing System satellite, joining EOS-AM/Terra. The CERES and MODIS instruments aboard Aqua were also carried on the Terra satellite. More...
  • Aura American earth atmosphere satellite. One launch, 2004.07.15. Earth Observing System (EOS) Aura was a NASA mission to study the Earth's ozone, air quality and climate. 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 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...
  • 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...
  • 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...
  • Vandenberg SLC2W Delta launch complex. Originally a Thor 75 SMS launch pad. Upgraded to a space launch complex in 1966. More...

Associated Stages
  • Delta K N2O4/Aerozine-50 propellant rocket stage. Loaded/empty mass 6,954/950 kg. Thrust 43.63 kN. Vacuum specific impulse 319 seconds. More...
  • Delta Thor XLT-C Lox/Kerosene propellant rocket stage. Loaded/empty mass 101,900/5,900 kg. Thrust 1,054.20 kN. Vacuum specific impulse 302 seconds. More...
  • GEM 40 Solid propellant rocket stage. Loaded/empty mass 13,064/1,361 kg. Thrust 492.93 kN. Vacuum specific impulse 274 seconds. More...

Delta 7920-10L Chronology


2002 May 4 - . 09:54 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Delta 7920-10L. LV Configuration: Delta 7920-10L D291.
  • Aqua - . Payload: EOS-PM1. Mass: 2,934 kg (6,468 lb). Nation: USA. Agency: NASA. Manufacturer: TRW. Class: Earth. Type: Earth resources satellite. Spacecraft: Aqua. USAF Sat Cat: 27424 . COSPAR: 2002-022A. Apogee: 706 km (438 mi). Perigee: 699 km (434 mi). Inclination: 98.2000 deg. Period: 98.80 min. Climatology and environment satellite. Launch delayed from December 20, 2001, and January 30, April 18 and 26, May 2. NASA's Aqua remote sensing satellite was placed in a 185 x 707 km x 98.1 deg transfer orbit at 1006 UTC. A second burn of the second stage of the Delta at 1048:58 UTC put Aqua in a 676 x 687 km x 98.2 deg orbit.

2004 July 15 - . 10:02 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Delta 7920-10L. LV Configuration: Delta 7920-10L D306.
  • Aura - . Payload: EOS-CHEM1 / T330 (AB1200). Mass: 2,967 kg (6,541 lb). Nation: USA. Agency: NASA. Manufacturer: TRW. Class: Earth. Type: Atmosphere satellite. Spacecraft: Aura. USAF Sat Cat: 28376 . COSPAR: 2004-026A. Apogee: 694 km (431 mi). Perigee: 688 km (427 mi). Inclination: 98.2000 deg. Period: 98.60 min. Summary: Atmosphere Dynamics & Chemistry. Delayed from January 29, February 6, March 19, June 17, 19 and 26, July 8, 10, 11, 13 and 14..

2009 March 7 - . 03:50 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. Launch Pad: SLC17B. LV Family: Delta. Launch Vehicle: Delta 7920-10L. LV Configuration: Delta 7920-10L s/n D339.
  • Kepler - . Mass: 1,050 kg (2,310 lb). Nation: USA. Agency: Martin. Spacecraft: Kepler. USAF Sat Cat: 34380 . COSPAR: 2009-011A.

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