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Delta 2310

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Status: Retired 1981. First Launch: 1974-11-15. Last Launch: 1981-10-06. Number: 3 . Thrust: 1,737.00 kN (390,493 lbf). Gross mass: 131,000 kg (288,000 lb). Height: 35.00 m (114.00 ft). Diameter: 2.44 m (8.00 ft). Apogee: 1,500 km (900 mi).

• NOAA 4 - . Payload: ITOS G. Mass: 340 kg (740 lb). Nation: USA. Agency: NOAA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: ITOS. USAF Sat Cat: 7529 . COSPAR: 1974-089A. Apogee: 1,459 km (906 mi). Perigee: 1,445 km (897 mi). Inclination: 101.80 deg. Period: 114.90 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

• Intasat 1 - . Payload: Intasat. Mass: 20 kg (44 lb). Nation: Spain. Agency: INTA. Class: Technology. Type: Communications technology satellite. Spacecraft: Intasat. USAF Sat Cat: 7531 . COSPAR: 1974-089C. Apogee: 1,459 km (906 mi). Perigee: 1,442 km (896 mi). Inclination: 101.80 deg. Period: 114.90 min.

• Oscar 7 - . Payload: Amsat-Oscar-7. Mass: 29 kg (63 lb). Nation: USA. Agency: AmSat. Program: Oscar. Class: Communications. Type: Amateur radio communications satellite. Spacecraft: Oscar. USAF Sat Cat: 7530 . COSPAR: 1974-089B. Apogee: 1,459 km (906 mi). Perigee: 1,440 km (890 mi). Inclination: 101.80 deg. Period: 114.90 min.

  AMSAT-OSCAR 7 was launched piggyback with ITOS-G (NOAA 4) and the Spanish INTASAT. The second phase 2 satellite (Phase II-B). Weight 28.6 kg. Octahedrally shaped 360 mm high and 424 mm in diameter. Circularly polarized canted turnstile VHF/UHF antenna system and HF dipole. Firsts: Satellite-to-satellite relay communication via AO-6; Early demonstrations of low-budget medical data relay and doppler location of ground transmitters for search-and-rescue operations were done using this satellite. AO-7 was fully operational for 6.5 years until a battery failed in mid 1981. However the satellite was still functional in day-side passes when its ever-degrading solar cells could function, and was still responding to amateurs as of August 2006. Additional Details: here....

• NOAA 5 - . Payload: ITOS H. Mass: 340 kg (740 lb). Nation: USA. Agency: NOAA. Program: Tiros. Class: Earth. Type: Weather satellite. Spacecraft: ITOS. USAF Sat Cat: 9057 . COSPAR: 1976-077A. Apogee: 1,523 km (946 mi). Perigee: 1,507 km (936 mi). Inclination: 102.30 deg. Period: 116.30 min. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

• SME - . Payload: Solar Mesosphere Explorer. Mass: 437 kg (963 lb). Nation: USA. Class: Astronomy. Type: X-ray astronomy satellite. Spacecraft: SME. Decay Date: 1991-03-05 . USAF Sat Cat: 12887 . COSPAR: 1981-100A. Apogee: 337 km (209 mi). Perigee: 335 km (208 mi). Inclination: 97.60 deg. Period: 91.30 min. Solar Mesosphere Explorer. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C)..

• Oscar 9 - . Payload: UoSAT 1. Mass: 52 kg (114 lb). Nation: UK. Agency: Surrey. Manufacturer: Surrey. Program: Oscar. Class: Communications. Type: Amateur radio communications satellite. Spacecraft: SSTL-70. Decay Date: 1989-10-13 . USAF Sat Cat: 12888 . COSPAR: 1981-100B. Apogee: 374 km (232 mi). Perigee: 372 km (231 mi). Inclination: 97.60 deg. Period: 92.00 min.

  University of Surrey research microsatellite. Radio science; also carried amateur radio package. Communication and geophysics research satellite. Launch time 1127 GMT. Also registered by the United States in ST/SG/SER.E/59, with category D and orbital parameters 95.3 min, 531 x 533 km x 97.5 deg. UoSAT-OSCAR 9 was launched piggyback with Solar Mesosphere Explorer satellite. Weight 52 kg. Box shaped 740 x 420 x 420 mm. Deployable gravity gradient boom. Firsts: First on-board computer (IHU - Integrated Housekeeping Unit) for battery and attitude management, remote control, and experiments. Built by the University of Surrey in the United Kingdom, UO-9 was UoSAT's first experimental satellite. It was a scientific and educational low-Earth orbit satellite containing many experiments and beacons but no amateur transponders. UO-9 was fully operational until it re-entered October 13, 1989 from a decaying orbit after nine years of service.