1959 September 9 - 17:50 GMT - Launch Vehicle: Atlas. Atlas D 12D Initial operational capability demonstration launch Agency: USAF SAC. Apogee: 1,800 km (1,100 mi). First SAC operational (IOC) launch, 576th SMS, successful: impacted within one mile of target near Wake Island, a 4,480 nautical mile flight. Afterwards, General Thomas S. Power, Commander in Chief of Strategic Air Command, declared the Atlas system to be operational.

1965 August 5 - 13:21 GMT - Launch Vehicle: Atlas. Atlas F 147F ABRES LORV-2A re-entry vehicle test flight Agency: USAF AFSC. Apogee: 1,400 km (800 mi).

1966 August 8 - 17:47 GMT - Launch Vehicle: Atlas. Atlas F 149F FAILURE: Failure. ABRES MBRV-1 re-entry vehicle test flight Agency: USAF AFSC. Apogee: 500 km (310 mi).

1966 October 11 - 19:59 GMT - Launch Vehicle: Atlas. Atlas F 115F FAILURE: Failure. ABRES SBGRV-1 re-entry vehicle test flight Agency: USAF AFSC. Apogee: 50 km (31 mi).

1967 January 18 - 01:34 GMT - Launch Vehicle: Atlas. Atlas F 148F ABRES TVX-13 (21) re-entry vehicle test flight Agency: USAF AFSC. Apogee: 1,400 km (800 mi).

1967 March 16 - 17:56 GMT - Launch Vehicle: Atlas. Atlas F 151F ABRES MBRV-2 re-entry vehicle test flight Agency: USAF AFSC. Apogee: 1,400 km (800 mi).

1967 July 29 - 08:48 GMT - Launch Vehicle: Atlas. Atlas F 150F ABRES MBRV-3 re-entry vehicle test flight Agency: USAF AFSC. Apogee: 1,400 km (800 mi).

1967 October 14 - Launch Vehicle: Atlas. Atlas F 118F ABRES MBRV-4 re-entry vehicle test flight Agency: USAF AFSC. Apogee: 1,400 km (800 mi).

1968 April 6 - 09:59 GMT - Launch Vehicle: Atlas. Atlas F 107F / OV-1 (2x) OV1-13 Mass: 107 kg (235 lb). Spacecraft: OV1. Agency: USAF OAR. Perigee: 587 km (364 mi). Apogee: 9,214 km (5,725 mi). Inclination: 100.00 deg. Period: 198.70 min. Radiation, engineering experiments. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

1968 May 3 - Launch Vehicle: Atlas. Atlas F 95F FAILURE: Failure. ABRES Penaid TVX re-entry vehicle test flight Agency: USAF AFSC. Apogee: 100 km (60 mi).

1968 June 1 - Launch Vehicle: Atlas. Atlas F 89F ABRES PDV re-entry vehicle test flight Agency: USAF AFSC. Apogee: 1,400 km (800 mi).

1968 July 11 - 19:30 GMT - Launch Vehicle: Atlas. Atlas F 75F / OV-1 (2x) OV1-15S Mass: 470 kg (1,030 lb). Spacecraft: OV1. Agency: USAF OAR. Perigee: 153 km (95 mi). Apogee: 1,800 km (1,100 mi). Inclination: 89.80 deg. Period: 104.60 min. Studied relationship between atmospheric density and solar radiation. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

1969 March 18 - 07:40 GMT - Launch Vehicle: Atlas. Atlas F 104F / OV-1 (3x) OV1-17S Mass: 142 kg (313 lb). Spacecraft: OV1. Agency: USAF OAR. Perigee: 400 km (240 mi). Apogee: 466 km (289 mi). Inclination: 99.10 deg. Period: 93.20 min. Solar radiation experiments. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).