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Atlas II

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Atlas 2 Atlas 2 - AC-102 - COSPAR 1991-083

Status: Retired 1998. First Launch: 1991-12-07. Last Launch: 1998-03-16. Number: 10 . Payload: 6,580 kg (14,500 lb). Thrust: 2,110.60 kN (474,482 lbf). Gross mass: 187,600 kg (413,500 lb). Height: 47.50 m (155.80 ft). Diameter: 3.05 m (10.00 ft). Apogee: 185 km (114 mi).

LEO Payload: 6,580 kg (14,500 lb) to a 185 km orbit at 28.50 degrees. Payload: 2,810 kg (6,190 lb) to a GTO. Launch Price $: 85.000 million in 1994 dollars.

Stage Data - Atlas II

• Stage 0. 1 x Atlas MA-5A. Gross Mass: 4,187 kg (9,230 lb). Empty Mass: 4,187 kg (9,230 lb). Thrust (vac): 2,093.700 kN (470,682 lbf). Isp: 299 sec. Burn time: 172 sec. Isp(sl): 263 sec. Diameter: 4.90 m (16.00 ft). Span: 4.90 m (16.00 ft).Propellants: Lox/Kerosene. No Engines: 2. Engine: RS-56-OBA. Status: In Production.

• Stage 1. 1 x Atlas II. Gross Mass: 161,995 kg (357,137 lb). Empty Mass: 6,095 kg (13,437 lb). Thrust (vac): 386.300 kN (86,844 lbf). Isp: 316 sec. Burn time: 283 sec. Isp(sl): 220 sec. Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Length: 24.90 m (81.60 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: RS-56-OSA. Status: In Production.

• Stage 2. 1 x Centaur II. Gross Mass: 18,833 kg (41,519 lb). Empty Mass: 2,053 kg (4,526 lb). Thrust (vac): 146.800 kN (33,002 lbf). Isp: 444 sec. Burn time: 488 sec. Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Length: 10.10 m (33.10 ft). Propellants: Lox/LH2. No Engines: 2. Engine: RL-10A-3A. Status: In Production.

• Stage 3. 1 x IABS. Gross Mass: 1,578 kg (3,478 lb). Empty Mass: 275 kg (606 lb). Thrust (vac): 980 N (220 lbf). Isp: 312 sec. Burn time: 60 sec. Diameter: 2.90 m (9.50 ft). Span: 2.90 m (9.50 ft). Length: 0.68 m (2.23 ft). Propellants: N2O4/MMH. No Engines: 2. Engine: R-4D. Other designations: Integrated Apogee Boost Subsystem. Status: In Production.

Photo Gallery

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Atlas III Atlas II Variants - Atlas IIA and IIAS Credit: © Mark Wade

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Atlas 2 Credit: © Mark Wade

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• Eutelsat II F3 - . Mass: 1,874 kg (4,131 lb). Nation: Europe. Agency: Eutelsat. Program: Eutelsat. Class: Communications. Type: Civilian communications satellite. Spacecraft: Spacebus 100. USAF Sat Cat: 21803 . COSPAR: 1991-083A. Apogee: 35,802 km (22,246 mi). Perigee: 35,769 km (22,225 mi). Inclination: 2.00 deg. Period: 1,436.10 min.

  Stationed at 16 deg E. Telecommunications satellite. French registration 1991-8. Transfer orbit was 663 min, 200 x 36000 km x 7.0 deg. Registered by France in ST/SG/SER.E/249 until EUTELSAT can register the satellite. EUTELSAT is the European Telecommunications Satellite Organi zation. Launch vehicle put payload into supersynchronous earth orbit with IFR trajectory option. Positioned in geosynchronous orbit at 16 deg E in 1992-1998; 36 deg E in 1999. As of 1 September 2001 located at 21.51 deg E drifting at 0.017 deg E per day. As of 2007 Mar 11 located at 74.40E drifting at 3.531W degrees per day.

• USA 78 - . Payload: DSCS III B-14. Mass: 2,613 kg (5,760 lb). Nation: USA. Agency: USAF. Program: DSCS. Class: Communications. Type: Military communications satellite. Spacecraft: DSCS III. USAF Sat Cat: 21873 . COSPAR: 1992-006A. Apogee: 35,503 km (22,060 mi). Perigee: 30,675 km (19,060 mi). Inclination: 0.90 deg. Period: 1,300.50 min. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). Launch vehicle put payload into geosynchronous transfer orbit with GCS trajectory option. Positioned in geosynchronous orbit; at 135 deg W in 1995..

• USA 82 - . Payload: DSCS III B-12. Mass: 2,613 kg (5,760 lb). Nation: USA. Agency: USAF. Program: DSCS. Class: Communications. Type: Military communications satellite. Spacecraft: DSCS III. USAF Sat Cat: 22009 . COSPAR: 1992-037A. Apogee: 35,800 km (22,200 mi). Perigee: 35,775 km (22,229 mi). Inclination: 0.20 deg. Period: 1,436.20 min.

  Launch vehicle put payload into geosynchronous transfer orbit with GCS trajectory option. Positioned in geosynchronous orbit at 12 deg W in 1995-1996. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• USA 93 - . Payload: DSCS III B-9. Mass: 2,615 kg (5,765 lb). Nation: USA. Agency: USAF. Program: DSCS. Class: Communications. Type: Military communications satellite. Spacecraft: DSCS III. USAF Sat Cat: 22719 . COSPAR: 1993-046A. Apogee: 35,764 km (22,222 mi). Perigee: 183 km (113 mi). Inclination: 26.10 deg. Period: 625.80 min.

  Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Launch vehicle put payload into geosynchronous transfer orbit with GCS trajectory option. Positioned in geosynchronous orbit at 175 deg E in 1995-1997.

• USA 97 - . Payload: DSCS III B-10. Mass: 2,615 kg (5,765 lb). Nation: USA. Agency: USAF. Program: DSCS. Class: Communications. Type: Military communications satellite. Spacecraft: DSCS III. USAF Sat Cat: 22915 . COSPAR: 1993-074A. Apogee: 35,501 km (22,059 mi). Perigee: 195 km (121 mi). Inclination: 26.40 deg. Period: 625.40 min.

  Launch vehicle put payload into geosynchronous transfer orbit with GCS trajectory option. Positioned in geosynchronous orbit at 52 deg W in 1995; 60 deg E in 1997. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• USA 108 - . Payload: UHF F/O F4. Mass: 3,023 kg (6,664 lb). Nation: USA. Agency: HCI. Program: UHF. Class: Communications. Type: Military communications satellite. Spacecraft: HS 601. USAF Sat Cat: 23467 . COSPAR: 1995-003A. Apogee: 35,799 km (22,244 mi). Perigee: 35,775 km (22,229 mi). Inclination: 2.20 deg. Period: 1,436.10 min. UHF Follow-On #4; US Navy communications . Stationed at 177.0 deg W. Launch vehicle put payload into subsynchronous earth orbit with MRS trajectory option. Positioned in geosynchronous orbit at 177 deg W in 1995-1999..

• USA 111 - . Payload: UHF F/O F5-EHF. Mass: 3,015 kg (6,646 lb). Nation: USA. Agency: USN. Program: UHF. Class: Communications. Type: Military communications satellite. Spacecraft: HS 601. USAF Sat Cat: 23589 . COSPAR: 1995-027A. Apogee: 35,796 km (22,242 mi). Perigee: 35,774 km (22,228 mi). Inclination: 4.80 deg. Period: 1,436.10 min. UHF Follow-On #5; US Navy communications . Stationed at 72.3 deg E. Launch vehicle put payload into subsynchronous earth orbit with MRS trajectory option. Positioned in geosynchronous orbit at 72 deg E in 1995-1999..

• USA 114 - . Payload: UHF F/O F6-EHF. Mass: 3,015 kg (6,646 lb). Nation: USA. Agency: USN. Program: UHF. Class: Communications. Type: Military communications satellite. Spacecraft: HS 601. USAF Sat Cat: 23696 . COSPAR: 1995-057A. Apogee: 35,797 km (22,243 mi). Perigee: 35,776 km (22,230 mi). Inclination: 5.00 deg. Period: 1,436.10 min. UHF Follow-On #6; US Navy communications. Stationed at 105.3 deg W. Launch vehicle put payload into subsynchronous earth orbit with MRS trajectory option. Positioned in geosynchronous orbit at 105 deg W in 1995-1999..

• USA 127 - . Payload: UHF F/O F7-EHF. Mass: 3,015 kg (6,646 lb). Nation: USA. Agency: HCI. Program: UHF. Class: Communications. Type: Military communications satellite. Spacecraft: HS 601. USAF Sat Cat: 23967 . COSPAR: 1996-042A. Apogee: 35,791 km (22,239 mi). Perigee: 35,784 km (22,235 mi). Inclination: 4.90 deg. Period: 1,436.20 min. Positioned in geosynchronous orbit at 170 deg W in 1996; 23 deg W in 1996-1999; 100 deg W in 1999. As of 29 July 1999) 99.21 deg W drifting at 0.011 deg W per day. As of 2007 Feb 22 located at 21.85W drifting at 0.014W degrees per day..

• USA 138 - . Payload: UHF F/O F8-EHF. Mass: 3,206 kg (7,068 lb). Nation: USA. Agency: USN. Manufacturer: El Segundo. Program: UHF. Class: Communications. Type: Military communications satellite. Spacecraft: HS 601. USAF Sat Cat: 25258 . COSPAR: 1998-016A. Apogee: 35,803 km (22,246 mi). Perigee: 35,771 km (22,227 mi). Inclination: 3.30 deg. Period: 1,436.10 min.

  UHF Follow-On F8 was the first Block III UHF Follow-On satellite, replacing the old FLTSATCOM satellites. It carried UHF, EHF and Ka-band transponders, including a video broadcast payload. This was the last Atlas II launch; future Atlas launches would use the Atlas IIA, IIAS and III models. Positioned in geosynchronous orbit at 172 deg E in 1998-1999.