Encyclopedia Astronautica
Delta N



deln7016.jpg
Delta N6 no. 81
Delta N6 no. 81 - COSPAR 1970-106
American orbital launch vehicle. Long Tank Thor augmented with 3 Castor 2 boosters and Delta E upper stage.

Flyaway Unit Cost $: 18.820 million in 1985 dollars.

Stage Data - Delta N

  • Stage 0. 6 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 LT. Gross Mass: 70,354 kg (155,104 lb). Empty Mass: 3,715 kg (8,190 lb). Thrust (vac): 866.710 kN (194,844 lbf). Isp: 290 sec. Burn time: 215 sec. Isp(sl): 256 sec. Diameter: 2.44 m (8.00 ft). Span: 2.44 m (8.00 ft). Length: 21.43 m (70.30 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: MB-3-3. Other designations: Long Tank 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.

AKA: Long Tank Thor.
Status: Out of production.
Gross mass: 90,000 kg (198,000 lb).
Height: 33.00 m (108.00 ft).
Diameter: 2.44 m (8.00 ft).
Thrust: 1,590.00 kN (357,440 lbf).
First Launch: 1968.08.16.
Last Launch: 1972.03.12.
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...
  • OSO American solar satellite. 9 launches, 1962.03.07 (OSO 1) to 1975.06.21 (OSO 8). The Orbiting Solar Observatories, developed for NASA's Goddard Space Flight Center, were designed primarily as stabilized platforms for solar-oriented scientific instruments. More...
  • TOS American earth weather satellite. 7 launches, 1966.10.02 (ESSA 3) to 1969.02.26 (ESSA 9). TOS spacecraft marked the first operational system of US polar-orbiting meteorological satellites. More...
  • Biosatellite American biology satellite. 3 launches, 1966.12.14 (Biosatellite 1) to 1969.06.29 (Biosatellite 3). Biosatellite was a NASA spacecraft designed in the early 1960's to study the effects of the space environment on living organisms in missions. More...
  • PAC American technology satellite. One launch, 1969.08.09. Package Attitude Control; semi-active gravity gradient stabilization tests. More...
  • TETR American tracking network technology satellite. 2 launches, 1969.08.27 (TETR C) and 1971.09.29 (TETR 3). Test satellite for NASA's Manned Space Flight Network. More...
  • ITOS American earth weather satellite. 8 launches, 1970.01.23 (ITOS 1) to 1976.07.29 (NOAA 5). ITOS was the follow-on to the TIROS series of polar-orbiting US weather satellites, and marked the beginning of the use of the NOAA designator. More...
  • TD-1A European technology satellite. One launch, 1972.03.12. Sixth satellite of ESRO. More...

Associated Engines
  • AJ10-118E Aerojet Nitric acid/UDMH rocket engine. 35.1 kN. Isp=278s. Used on Delta E, Delta G, Delta J, Delta L, Delta M, Delta N upper stages. First flight 1965. More...
  • MB-3-3 Rocketdyne Lox/Kerosene rocket engine. 866.7 kN. Out of Production. License built in Japan for H-1. Isp=290s. First flight 1964. More...
  • TX-354-3 Thiokol solid rocket engine. 258.9 kN. Used in Scout A; Delta E; H-1-0; Castor 2. License built in Japan for H-1. Isp=262s. First flight 1960. 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
  • Tiros TIROS spacecraft were the beginning of a long series of polar-orbiting meteorological satellites. TIROS was followed by the TOS (TIROS Operational System) series, and then the ITOS (Improved TIROS) series, and later the NOAA series. TIROS spacecraft were developed by GSFC and managed by ESSA (Environmental Science Services Administration). The objective was to establish a global weather satellite system. 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...
  • Vandenberg SLC2E Delta launch complex. Originally a Thor 75 SMS launch pad. Upgraded to a space launch complex in 1966. More...
  • Cape Canaveral LC17A Delta launch complex. Part of a dual launch pad complex built for the Thor ballistic missile program in 1956. Pad 17A supported Thor, Delta, and Delta II launches into the 21st 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 E Nitric acid/UDMH propellant rocket stage. Loaded/empty mass 6,009/785 kg. Thrust 35.10 kN. Vacuum specific impulse 278 seconds. More...
  • Delta Thor LT Lox/Kerosene propellant rocket stage. Loaded/empty mass 70,354/3,715 kg. Thrust 866.71 kN. Vacuum specific impulse 290 seconds. More...

Delta N Chronology


1968 August 16 - . 11:24 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Delta N. LV Configuration: Thor Delta N 528/D58.
  • ESSA 7 - . Payload: TOS E. Mass: 145 kg (319 lb). Nation: USA. Agency: ESSA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: TOS. USAF Sat Cat: 3345 . COSPAR: 1968-069A. Apogee: 1,473 km (915 mi). Perigee: 1,431 km (889 mi). Inclination: 101.9000 deg. Period: 114.90 min. Summary: Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

1968 December 15 - . 17:21 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Delta N. LV Configuration: Thor Delta N 532/D62.
  • ESSA 8 - . Payload: TOS F. Mass: 132 kg (291 lb). Nation: USA. Agency: ESSA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: TOS. USAF Sat Cat: 3615 . COSPAR: 1968-114A. Apogee: 1,464 km (909 mi). Perigee: 1,414 km (878 mi). Inclination: 102.0000 deg. Period: 114.60 min. Summary: Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

1969 June 29 - . 03:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Delta. Launch Vehicle: Delta N. LV Configuration: Thor Delta N 539/D70.
  • Biosatellite 3 - . Payload: Biosat 3. Mass: 695 kg (1,532 lb). Nation: USA. Agency: NASA Ames. Class: Biology. Type: Biology satellite. Spacecraft: Biosatellite. Decay Date: 1970-01-20 . USAF Sat Cat: 4000 . COSPAR: 1969-056A. Apogee: 374 km (232 mi). Perigee: 363 km (225 mi). Inclination: 33.5000 deg. Period: 92.00 min. Biological capsule reentered 7/7/69. The intent had been to fly a 6 kg male pig-tailed monkey (Macaca nemestrina) named Bonnie in Earth-orbit for 30 days. However, after only 8.8 days in orbit, the mission was terminated because of the subject's deteriorating health. High development costs were a strong incentive for maximising the scientific return from the mission. Because of this, the scientific goals had become exceedingly ambitious over time, and a great many measurements were conducted on the single research subject flown. Although the mission was highly successful from a technical standpoint, the science results were apparently compromised. Additional Details: here....

1969 August 9 - . 07:52 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Delta. Launch Vehicle: Delta N. LV Configuration: Thor Delta N 548/D72.
  • OSO 6 - . Payload: OSO G. Mass: 290 kg (630 lb). Nation: USA. Agency: NASA Greenbelt. Class: Astronomy. Type: Solar astronomy satellite. Spacecraft: OSO. Decay Date: 1981-03-07 . USAF Sat Cat: 4065 . COSPAR: 1969-068A. Apogee: 554 km (344 mi). Perigee: 489 km (303 mi). Inclination: 32.9000 deg. Period: 95.10 min. Summary: Orbiting Solar Observatory; solar physics experiments. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .
  • PAC 1 - . Mass: 120 kg (260 lb). Nation: USA. Agency: NASA Greenbelt. Class: Technology. Type: Navigation technology satellite. Spacecraft: PAC. Decay Date: 1977-04-28 . USAF Sat Cat: 4066 . COSPAR: 1969-068B. Apogee: 552 km (342 mi). Perigee: 486 km (301 mi). Inclination: 32.9000 deg. Period: 95.00 min. Summary: Package Attitude Control; semi-active gravity gradient stabilization tests. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1971 September 29 - . 09:45 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Delta. Launch Vehicle: Delta N. LV Configuration: Thor Delta N 565/D85.
  • OSO 7 - . Payload: OSO H. Mass: 635 kg (1,399 lb). Nation: USA. Agency: NASA Greenbelt. Class: Astronomy. Type: Solar astronomy satellite. Spacecraft: OSO. Decay Date: 1974-07-09 . USAF Sat Cat: 5491 . COSPAR: 1971-083A. Apogee: 572 km (355 mi). Perigee: 326 km (202 mi). Inclination: 33.1000 deg. Period: 93.50 min. Summary: Orbiting Solar Observatory. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .
  • TETR 3 - . Payload: TETR D. Mass: 20 kg (44 lb). Nation: USA. Agency: NASA Greenbelt. Class: Technology. Type: Tracking network technology satellite. Spacecraft: TETR. Decay Date: 1978-09-19 . USAF Sat Cat: 5492 . COSPAR: 1971-083B. Apogee: 570 km (350 mi). Perigee: 403 km (250 mi). Inclination: 33.0000 deg. Period: 94.30 min. Summary: Test satellite for NASA's Manned Space Flight Network. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1972 March 12 - . 01:55 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Delta N. LV Configuration: Thor Delta N 573/D88.
  • TD-1A; Thor Delta 1A - . Payload: TD 1A. Mass: 472 kg (1,040 lb). Nation: Europe. Agency: ESRO. Class: Technology. Type: Navigation technology satellite. Spacecraft: TD-1A. Decay Date: 1980-01-09 . USAF Sat Cat: 5879 . COSPAR: 1972-014A. Apogee: 550 km (340 mi). Perigee: 523 km (324 mi). Inclination: 97.6000 deg. Period: 95.40 min. Summary: Sixth satellite of ESRO. Also registered as US object 1972-14A in A/AC.105/INF.255 with orbit 95.3 min, 525 x 548 km x 97.5 deg, category B. .

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