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

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Family: Atlas. Country: USA. Status: Hardware.

The Atlas II booster was 2.7-meters longer than an Atlas I and included uprated Rocketdyne MA-5A engines. The Atlas I vernier engines were replaced with a hydrazine roll control system. The Centaur stage was stretched 0.9-meters compared to the Centaur I stage. Fixed foam insulation replaced Atlas I's jettisonable insulation panels. The original Atlas II model was developed to support the United States Air Force Medium Launch Vehicle II program. Its Centaur used RL10A-3-3A engines operating at an increased mixture ratio. The first Atlas II flew on 7 December 1991, successfully delivering AC-102/Eutelsat II F3 to orbit.


Specifications

Launches: 10. Failures: 0. Success Rate: 100.00% pct. First Launch Date: 07 December 1991. Last Launch Date: 16 March 1998. LEO Payload: 6,580 kg. to: 185 km Orbit. at: 28.5 degrees. Payload: 2,810 kg. to a: Geosynchronous transfer trajectory. Liftoff Thrust: 215,220 kgf. Total Mass: 187,600 kg. Core Diameter: 3.1 m. Total Length: 47.5 m. Launch Price $: 85.00 million. in 1994 price dollars.


Atlas II Chronology


1991 Dec 7 - - 21:36 GMT. LV Configuration: Atlas II (3) s/n AC-102 / Centaur II s/n 8102. Launch Site: Cape Canaveral . Launch Complex: LC36B.
1992 Feb 11 - - 00:41 GMT. LV Configuration: Atlas II (3) s/n AC-101 / Centaur II s/n 8101. Launch Site: Cape Canaveral . Launch Complex: LC36A.
1992 Jul 2 - - 21:50 GMT. LV Configuration: Atlas II (3) s/n AC-103 / Centaur II s/n 8103. Launch Site: Cape Canaveral . Launch Complex: LC36A.
1993 Jul 19 - - 22:04 GMT. LV Configuration: Atlas II (3) s/n AC-104 / Centaur II s/n 8104. Launch Site: Cape Canaveral . Launch Complex: LC36B.
1993 Nov 28 - - 23:40 GMT. LV Configuration: Atlas II (3) s/n AC-106 / Centaur II s/n 8106. Launch Site: Cape Canaveral . Launch Complex: LC36A.
1995 Jan 29 - - 01:25 GMT. LV Configuration: Atlas II (3) s/n AC-112 / Centaur II s/n 8110. Launch Site: Cape Canaveral . Launch Complex: LC36A.
1995 May 31 - - 15:27 GMT. LV Configuration: Atlas II (3) s/n AC-116 IABS / Centaur II. Launch Site: Cape Canaveral . Launch Complex: LC36A.
1995 Oct 22 - - 08:00 GMT. LV Configuration: Atlas II (3) s/n AC-119 IABS / Centaur II. Launch Site: Cape Canaveral . Launch Complex: LC36A.
1996 Jul 25 - - 12:42 GMT. LV Configuration: Atlas II (3) s/n AC-125 IABS / Centaur II. Launch Site: Cape Canaveral . Launch Complex: LC36A.
1998 Mar 16 - - 21:32 GMT. LV Configuration: Atlas II s/n AC-132. Launch Site: Cape Canaveral . Launch Complex: LC36A.

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Last update 12 March 2001.
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