Encyclopedia Astronautica
Delta 2910


American orbital launch vehicle. Three stage vehicle consisting of 9 x Castor 2 + 1 x ELT Thor/RS-27 + 1 x Delta P /TR-201

Status: Retired 1978.
Gross mass: 131,000 kg (288,000 lb).
Height: 35.00 m (114.00 ft).
Diameter: 2.44 m (8.00 ft).
Thrust: 2,560.00 kN (575,510 lbf).
Apogee: 3,000 km (1,800 mi).
First Launch: 1975.01.22.
Last Launch: 1978.10.24.
Number: 6 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • Oscar International series of amateur radio communications satellites. Operational, first launch 1961.12.12. Launched in a variety of configurations and by many nations. More...
  • AE American earth atmosphere satellite. 5 launches, 1963.04.03 (Explorer 17) to 1975.11.20 (Explorer 55). Atmospheric research. More...
  • Nimbus American earth weather satellite. 8 launches, 1964.08.28 (Nimbus 1) to 1978.10.13 (Nimbus 7). More...
  • Landsat 1-2-3 American earth land resources satellite. 3 launches, 1972.07.23 (Landsat 1) to 1978.03.05 (Landsat 3). The first 3 Landsat missions were also known as the Earth Resources Technology Satellite (ERTS) series. More...
  • PIX American technology satellite. One launch, 1978.03.05. Plasma Interaction Experiment. More...
  • CAMEO American earth magnetosphere satellite. One launch, 1978.10.13. Released barium cloud. 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...
  • Oscar Amateur radio satellite network. For over a third of a century a series of OSCAR satellites have been launched in a variety of configurations and by many nations. 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
  • Castor 2 Solid propellant rocket stage. Loaded/empty mass 4,424/695 kg. Thrust 258.92 kN. Vacuum specific impulse 262 seconds. More...
  • Delta P N2O4/Aerozine-50 propellant rocket stage. Loaded/empty mass 5,434/820 kg. Thrust 41.92 kN. Vacuum specific impulse 301 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 2910 Chronology


1975 January 22 - . 17:55 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Delta 2910. LV Configuration: Delta 2910 598/D107.
  • Landsat 2 - . Payload: Landsat B. Mass: 953 kg (2,101 lb). Nation: USA. Agency: NASA Greenbelt. Program: Landsat. Class: Earth. Type: Earth resources satellite. Spacecraft: Landsat 1-2-3. USAF Sat Cat: 7615 . COSPAR: 1975-004A. Apogee: 913 km (567 mi). Perigee: 900 km (550 mi). Inclination: 99.3000 deg. Period: 103.10 min. Summary: Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

1975 June 12 - . 08:12 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Delta 2910. LV Configuration: Delta 2910 595/D111.
  • Nimbus 6 - . Payload: Nimbus F. Mass: 829 kg (1,827 lb). Nation: USA. Agency: NASA Greenbelt. Class: Earth. Type: Weather satellite. Spacecraft: Nimbus. USAF Sat Cat: 7924 . COSPAR: 1975-052A. Apogee: 1,114 km (692 mi). Perigee: 1,101 km (684 mi). Inclination: 100.0000 deg. Period: 107.40 min. Environmental research. The experiments selected for Nimbus-6 were the earth radiation budget (ERB), electrically scanning microwave radiometer (ESMR), high-resolution infrared radiation sounder (HIRS), limb radiance inversion radiometer (LRIR), pressure modulated radiometer (PMR), scanning microwave spectrometer (SCAMS), temperature-humidity infrared radiometer (THIR), tracking and data relay experiment (T+DRE), and the tropical wind energy conversion and reference level experiment (TWERLE). This complement of advanced sensors was capable of mapping tropospheric temperature, water vapor abundance, and cloud water content; providing vertical profiles of temperature, ozone, and water vapor; transmitting real-time data to a geostationary spacecraft (ATS 6); and yielding data on the earth's radiation budget.

1975 October 6 - . 09:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Delta 2910. LV Configuration: Delta 2910 600/D115.
  • Explorer 54 - . Payload: AE D. Mass: 676 kg (1,490 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Earth. Type: Atmosphere satellite. Spacecraft: AE. Decay Date: 1976-03-12 . USAF Sat Cat: 8353 . COSPAR: 1975-096A. Apogee: 3,819 km (2,373 mi). Perigee: 151 km (93 mi). Inclination: 90.1000 deg. Period: 126.80 min. Summary: Atmospheric Explorer; atmospheric research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1975 November 20 - . 02:06 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Delta. Launch Vehicle: Delta 2910. LV Configuration: Delta 2910 604/D117.
  • Explorer 55 - . Payload: AE E. Mass: 721 kg (1,589 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Earth. Type: Atmosphere satellite. Spacecraft: AE. Decay Date: 1981-06-10 . USAF Sat Cat: 8440 . COSPAR: 1975-107A. Apogee: 3,002 km (1,865 mi). Perigee: 154 km (95 mi). Inclination: 19.7000 deg. Period: 117.70 min. Summary: Atmospheric Explorer. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1978 March 5 - . 17:54 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Delta 2910. LV Configuration: Delta 2910 621/D139.
  • Landsat 3 - . Payload: Landsat C. Mass: 960 kg (2,110 lb). Nation: USA. Agency: NASA Greenbelt. Program: Landsat. Class: Earth. Type: Earth resources satellite. Spacecraft: Landsat 1-2-3. USAF Sat Cat: 10702 . COSPAR: 1978-026A. Apogee: 915 km (568 mi). Perigee: 895 km (556 mi). Inclination: 98.9000 deg. Period: 103.10 min. Summary: Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..
  • PIX - . Payload: PIX 1 / Delta 139. Mass: 350 kg (770 lb). Nation: USA. Agency: NASA Greenbelt. Class: Technology. Type: Navigation technology satellite. Spacecraft: PIX. Decay Date: 1981-01-27 . USAF Sat Cat: 10704 . COSPAR: 1978-026C. Apogee: 920 km (570 mi). Perigee: 903 km (561 mi). Inclination: 99.1000 deg. Period: 103.20 min. Summary: Plasma Interaction Experiment. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • Oscar 8 - . Payload: Amsat-Oscar-8. Mass: 27 kg (59 lb). Nation: USA. Agency: AmSat. Program: Oscar. Class: Communications. Type: Amateur radio communications satellite. Spacecraft: Oscar. USAF Sat Cat: 10703 . COSPAR: 1978-026B. Apogee: 903 km (561 mi). Perigee: 894 km (555 mi). Inclination: 99.2000 deg. Period: 103.00 min. AMSAT-OSCAR 8 was launched piggyback with LandSat 3 (ERTS 3) and PIX. The third phase 2 satellite (Phase II-D). Weight 27.2 kg. Box shaped, 33 cm high, 38 x 38 cm. Circularly polarized VHF canted turnstile, UHF quarter wave monopole, and HF half-wave dipole antenna system. Another cooperative international effort (United States, Canada, Germany and Japan). AO-8 had a similar store-and-forward service as AO-7 and carried Mode A (145.850-900 MHz uplink and 29.400-500 MHz downlink) and Mode J (145.900-146.000 MHz uplink and 435.100 MHz downlink (inverted)) linear transponders and telemetry beacons on 435.095 MHz and 29.402 MHz. AO-8's primary mission was for educational applications and amateur communications. It was in operation for six years until the battery failed on June 24, 1983.

1978 October 24 - . 08:15 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Delta 2910. LV Configuration: Delta 2910 630/D145.
  • Nimbus 7 - . Payload: Nimbus G. Mass: 907 kg (1,999 lb). Nation: USA. Agency: NASA Greenbelt. Class: Earth. Type: Weather satellite. Spacecraft: Nimbus. USAF Sat Cat: 11080 . COSPAR: 1978-098A. Apogee: 957 km (594 mi). Perigee: 943 km (585 mi). Inclination: 99.0000 deg. Period: 104.10 min. Environmental research. The experiments carried were a limb infrared monitoring of the stratosphere (LIMS), stratospheric and mesopheric sounder (SAMS), coastal-zone color scanner (CZCS), stratospheric aerosol measurement (SAM II), earth radiation budget (ERB), scanning multichannel microwave radiometer (SMMR), solar backscatter UV and total ozone mapping spectrometer (SBUV/TOMS), and temperature-humidity infrared radiometer (THIR). These sensors were capable of observing several parameters at and below the mesospheric levels. After 11 years in orbit, three experiments, SAM II, SBUV/TOMS, and ERB, were still functioning successfully.
  • CAMEO - . Payload: CAMEO Li Canister/CAMEO Ba Canister. Mass: 350 kg (770 lb). Nation: USA. Agency: NASA Greenbelt. Class: Earth. Type: Magnetosphere satellite. Spacecraft: CAMEO. USAF Sat Cat: 11081 . COSPAR: 1978-098B. Apogee: 968 km (601 mi). Perigee: 924 km (574 mi). Inclination: 99.4000 deg. Period: 104.00 min. Summary: Released barium cloud..

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