Encyclopedia Astronautica
Thor Agena D SLV-2A/D


Thor Agena upgraded with addition of three Castor 1 strap-on motors.

3 stage vehicle consisting of 3 x Castor 1 + 1 x Thor DSV-2C + 1 x Agena D

AKA: Thrust Augmented Thor; DSV-2C; SLV-2A.
Status: Retired 1968.
Gross mass: 67,819 kg (149,515 lb).
Height: 31.00 m (101.00 ft).
Diameter: 2.44 m (8.00 ft).
Thrust: 1,571.00 kN (353,174 lbf).
Apogee: 1,000 km (600 mi).
First Launch: 1963.02.28.
Last Launch: 1968.01.17.
Number: 60 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • KH-5 American military surveillance satellite. 16 launches, 1961.02.17 (Discoverer 20) to 1964.08.21 (KH-5 9066A). US mapping satellite. Carried one frame camera, with a focal length of 76 mm, and a ground resolution of 140 m. More...
  • KH-5 American military surveillance satellite. 16 launches, 1961.02.17 (Discoverer 20) to 1964.08.21 (KH-5 9066A). US mapping satellite. Carried one frame camera, with a focal length of 76 mm, and a ground resolution of 140 m. More...
  • Ferret American military naval signals reconnaisance satellite. 19 launches, 1962.02.21 (Ferret 1) to 1971.07.16 (OPS 8373). More...
  • Ferret American military naval signals reconnaisance satellite. 19 launches, 1962.02.21 (Ferret 1) to 1971.07.16 (OPS 8373). More...
  • KH-4 American military surveillance satellite. 31 launches, 1962.02.27 (Discoverer 38) to 1963.12.21 (KH-4 9062). Early US reconnaissance satellite. Carried two 'Mural' panoramic cameras, with a focal length of 61 cm, and a ground resolution of 7.6 m. More...
  • KH-4 American military surveillance satellite. 31 launches, 1962.02.27 (Discoverer 38) to 1963.12.21 (KH-4 9062). Early US reconnaissance satellite. Carried two 'Mural' panoramic cameras, with a focal length of 61 cm, and a ground resolution of 7.6 m. More...
  • KH-6 American military surveillance satellite. 3 launches, 1963.03.18 (KH-6 8001) to 1963.07.31 (KH 4A-07). US reconnaissance satellite, lashed together to meet an emergency requirement for close-up imaging of a suspected Soviet ICBM site near Tallinn. More...
  • SSF American military naval signals reconnaisance satellite. 54 launches, 1963.03.18 (P-11 No. 1) to 1989.08.08 (USA 41). More...
  • P 11 American technology satellite. One launch, 1963.03.18, P-11. More...
  • P 11 American technology satellite. One launch, 1963.03.18, P-11. More...
  • KH-6 American military surveillance satellite. 3 launches, 1963.03.18 (KH-6 8001) to 1963.07.31 (KH 4A-07). US reconnaissance satellite, lashed together to meet an emergency requirement for close-up imaging of a suspected Soviet ICBM site near Tallinn. More...
  • SSF American military naval signals reconnaisance satellite. 54 launches, 1963.03.18 (P-11 No. 1) to 1989.08.08 (USA 41). More...
  • KH-4A American military surveillance satellite. 70 launches, 1963.08.25 (KH-4A 1001) to 1969.09.22 (SRV 743R). Early US reconnaissance satellite. Carried two 'J-1' panoramic cameras, with a focal length of 61 cm, and a ground resolution of 2.7 m. More...
  • KH-4A American military surveillance satellite. 70 launches, 1963.08.25 (KH-4A 1001) to 1969.09.22 (SRV 743R). Early US reconnaissance satellite. Carried two 'J-1' panoramic cameras, with a focal length of 61 cm, and a ground resolution of 2.7 m. More...
  • Starflash American earth magnetosphere satellite. 2 launches, 1964.06.13 (Starflash 1A) and 1964.08.21 (Starflash 1B). Sub-satellite of unknown purpose, released from KH-5 photo reconnaisance satellites on two missions. More...
  • Starflash American earth magnetosphere satellite. 2 launches, 1964.06.13 (Starflash 1A) and 1964.08.21 (Starflash 1B). Sub-satellite of unknown purpose, released from KH-5 photo reconnaisance satellites on two missions. More...
  • OGO American earth magnetosphere satellite. 6 launches, 1964.09.05 (OGO 1) to 1969.06.05 (OGO 6). More...
  • OGO American earth magnetosphere satellite. 6 launches, 1964.09.05 (OGO 1) to 1969.06.05 (OGO 6). More...
  • Pageos American earth geodetic satellite. 3 launches, 1966.06.24 (Pageos 1) to (Pageos canister half). 100 foot diameter. balloon. More...
  • Pageos American earth geodetic satellite. 3 launches, 1966.06.24 (Pageos 1) to (Pageos canister half). 100 foot diameter. balloon. More...

Associated Engines
  • Bell 8096 Bell Nitric acid/UDMH rocket engine. 71.2 kN. Out of production. Isp=292s. Used in Agena stage on top of Thor, Atlas, and Titan launch vehicles. First flight 1963. More...
  • M33-20-4 Thiokol solid rocket engine. 286 kN. Isp=247s. Used as apogee kick motor on Delta D, LT Thor Agena D, Scout X-1, Scout X-2, Scout X-3, Scout X-4, TA Thor Agena B, TA Thor Agena D. First flight 1960. 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...

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...
  • 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...
  • Douglas American manufacturer of rockets, spacecraft, and rocket engines. Boeing Huntington Beach, Huntington Beach, CA, USA. More...

Associated Programs
  • ELINT Various US electronic intelligence satellites, most of them from the Naval Research Laboratory, were orbited in the 1960's and still remain classified. More...

Associated Launch Sites
  • 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 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 SLC1E Delta launch complex. Originally a Thor 75 SMS launch pad. Upgraded to a space launch complex in 1967. More...
  • Vandenberg SLC1W Delta launch complex. Originally a Thor 75 SMS launch pad. Upgraded to a space launch complex in 1966. More...
  • Vandenberg SLC2E Delta launch complex. Originally a Thor 75 SMS launch pad. Upgraded to a space launch complex in 1966. More...
  • Vandenberg SLC3W Delta, Atlas launch complex. First designated LC1-1 and used to launch Atlas Agena B with Samos payloads. After Samos cancellation, rebuilt in 1963 to support launch of KH-4 Corona spysats atop Thor-Agena. Refurbished in 1973 to accomodate surplus Atlas ICBM's in space launch role. More...
  • Vandenberg SLC2W Delta launch complex. Originally a Thor 75 SMS launch pad. Upgraded to a space launch complex in 1966. More...

Associated Stages
  • Agena D Nitric acid/UDMH propellant rocket stage. Loaded/empty mass 6,821/673 kg. Thrust 71.17 kN. Vacuum specific impulse 300 seconds. One of the real workhorses of US space exploration, Agena was a restartable upper stage which was also employed as a spacecraft, the whole vehicle going into orbit. A mainstay of the US Air Force reconnaisance satellite program, it also boosted early NASA probes to the moon and planets. Agena played a key role in manned space flight as the target vehicle for rendezvous and docking manoeuvres in NASA's Gemini project. It More...
  • Agena D Nitric acid/UDMH propellant rocket stage. Loaded/empty mass 6,821/673 kg. Thrust 71.17 kN. Vacuum specific impulse 300 seconds. One of the real workhorses of US space exploration, Agena was a restartable upper stage which was also employed as a spacecraft, the whole vehicle going into orbit. A mainstay of the US Air Force reconnaisance satellite program, it also boosted early NASA probes to the moon and planets. Agena played a key role in manned space flight as the target vehicle for rendezvous and docking manoeuvres in NASA's Gemini project. It More...
  • Castor 1 Solid propellant rocket stage. Loaded/empty mass 3,852/535 kg. Thrust 286.00 kN. Vacuum specific impulse 247 seconds. More...
  • Castor 1 Solid propellant rocket stage. Loaded/empty mass 3,852/535 kg. Thrust 286.00 kN. Vacuum specific impulse 247 seconds. More...
  • Delta Thor TA Lox/Kerosene propellant rocket stage. Loaded/empty mass 49,442/3,175 kg. Thrust 866.71 kN. Vacuum specific impulse 290 seconds. More...
  • Delta Thor TA Lox/Kerosene propellant rocket stage. Loaded/empty mass 49,442/3,175 kg. Thrust 866.71 kN. Vacuum specific impulse 290 seconds. More...

Thor Agena D SLV-2A/D Chronology


1963 February 28 - . 21:48 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 354 / Agena D 1159 (No solids). FAILURE: Failure. Failed Stage: U.
  • KH-4 9052 - . Payload: KH-4 s/n 9052. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4. Decay Date: 1963-02-28 . COSPAR: F630228A. Summary: KH-4. Mission failed..
  • SRV 610 - . Nation: USA. Agency: USAF. Spacecraft: KH-4. COSPAR: F630228B.

1963 March 18 - . 21:13 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 360 / Agena D 1164 (No solids). FAILURE: Failure. Failed Stage: U.
  • KH-6 8001 - . Payload: KH-6 s/n 8001. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-6. Decay Date: 1963-03-18 . COSPAR: F630318A. Summary: First launch of KH-6. Mission failed..
  • P-11 No. 1 - . Payload: P-11 No. 1. Mass: 80 kg (176 lb). Nation: USA. Agency: USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: SSF. Decay Date: 1963-03-18 . COSPAR: F630318B. Summary: Ferret subsatellite aboard first launch of KH-6. Mission failed..
  • P-11 - . Payload: P-11. Nation: USA. Agency: USAF. Spacecraft: P 11. COSPAR: F630318C.

1963 May 18 - . 22:21 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 364 / Agena D 1165.
  • KH-6 8002 - . Payload: KH-6 s/n 8002 / Agena D 1165. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-6. Decay Date: 1963-05-27 . USAF Sat Cat: 578 . COSPAR: 1963-016A. Apogee: 506 km (314 mi). Perigee: 147 km (91 mi). Inclination: 74.5000 deg. Period: 91.00 min. Summary: KH-6. Second launch of KH-6. Operation was successful but no film was used. Officially: Spacecraft Engaged in investigation of spaceflight techniques and technology (US Cat A)..

1963 June 12 - . 23:58 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 362 / Agena D 1161.
  • KH-4 9054 - . Payload: KH-4 s/n 9054 / Agena D 1161. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4. Decay Date: 1963-07-11 . USAF Sat Cat: 590 . COSPAR: 1963-019A. Apogee: 416 km (258 mi). Perigee: 193 km (119 mi). Inclination: 81.8000 deg. Period: 90.70 min. Summary: KH-4. Some imagery seriously affected by corona..

1963 June 27 - . 00:37 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 381 / Agena D 1166.
  • KH-4 9056 - . Payload: KH-4 s/n 9056 / Agena D 1166. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4. Decay Date: 1963-07-26 . USAF Sat Cat: 609 . COSPAR: 1963-025A. Apogee: 338 km (210 mi). Perigee: 199 km (123 mi). Inclination: 81.6000 deg. Period: 89.90 min. Summary: KH-4. Experimental camera carried. Film affected by light leaks..
  • Hitch Hiker 1 - . Payload: P-11 No. 2. Mass: 80 kg (176 lb). Nation: USA. Agency: USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: SSF. USAF Sat Cat: 614 . COSPAR: 1963-025B. Apogee: 2,506 km (1,557 mi). Perigee: 323 km (200 mi). Inclination: 82.1000 deg. Period: 114.10 min. Summary: Radiation data. First successful flight of P-11 bus, mainly used for radar signals intelligence gathering..

1963 July 31 - . 00:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 382 / Agena D 1167.
  • KH 4A-07 - . Payload: KH-6 s/n 8003 / Agena D 1167. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-6. Decay Date: 1963-08-12 . USAF Sat Cat: 626 . COSPAR: 1963-032A. Apogee: 455 km (282 mi). Perigee: 152 km (94 mi). Inclination: 74.9000 deg. Period: 90.60 min. Summary: KH-6. Third and final KH-6 mission (LANYARD). Mission was successful but image quality was poor. Officially: Spacecraft Engaged in investigation of spaceflight techniques and technology (US Cat A)..

1963 August 25 - . 00:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 377 / Agena D 1162.
  • KH-4A 1001 - . Payload: KH-4A s/n 1001 / Agena D 1162. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1963-09-12 . USAF Sat Cat: 636 . COSPAR: 1963-034A. Apogee: 320 km (190 mi). Perigee: 161 km (100 mi). Inclination: 75.0000 deg. Period: 89.40 min. Summary: KH-4A. First mission of KH-4A. Some film was fogged. Two buckets but 1001-2 was never recovered..

1963 September 23 - . 23:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 383 / Agena D 1163.
  • KH-4A 1002 - . Payload: KH-4A s/n 1002 / Agena D 1163. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1963-10-12 . USAF Sat Cat: 668 . COSPAR: 1963-037A. Apogee: 442 km (274 mi). Perigee: 162 km (100 mi). Inclination: 74.8000 deg. Period: 90.60 min. Summary: KH-4A. Severe light leaks, 1002-2 never recovered, indefinite postponement of KH-4A series..

1963 October 29 - . 21:19 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 386 / Agena D 1601.
  • KH-5 9059A - . Payload: KH-5 s/n 9059A/Agena D 1601. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-5. Decay Date: 1964-01-21 . USAF Sat Cat: 681 . COSPAR: 1963-042A. Apogee: 318 km (197 mi). Perigee: 283 km (175 mi). Inclination: 89.9000 deg. Period: 90.60 min. Summary: KH-5; deployed ELINT subsatellite. Fourth film payload retrieved in ARGON program. Film comparable to that of 9058A. Officially: Spacecraft Engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • Hitch Hiker 2 - . Payload: P-11 s/n A3. Mass: 80 kg (176 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: SSF. Decay Date: 1965-05-23 . USAF Sat Cat: 682 . COSPAR: 1963-042B. Apogee: 581 km (361 mi). Perigee: 288 km (178 mi). Inclination: 90.0000 deg. Period: 93.30 min. Summary: Radar monitoring..

1963 December 21 - . 21:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 398 / Agena D 1168.
  • KH-4 9062 - . Payload: KH-4 s/n 9062 / Agena D 1168. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4. Decay Date: 1964-01-08 . USAF Sat Cat: 718 . COSPAR: 1963-055A. Apogee: 337 km (209 mi). Perigee: 178 km (110 mi). Inclination: 64.8000 deg. Period: 89.70 min. Summary: KH-4; deployed ELINT subsatellite. Corona static fogged much of film..
  • Hitch Hiker 3 - . Payload: P-11 s/n A4. Mass: 80 kg (176 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: SSF. Decay Date: 1964-11-07 . USAF Sat Cat: 719 . COSPAR: 1963-055B. Apogee: 394 km (244 mi). Perigee: 316 km (196 mi). Inclination: 64.5000 deg. Period: 91.70 min. Summary: Radar monitoring..
  • P-11 motor - . Nation: USA. Agency: USAF. Spacecraft: KH-4. Decay Date: 1964-01-08 . COSPAR: 1963-055xx.

1964 February 15 - . 21:38 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 389 / Agena D 1174.
  • KH-4A 1004 - . Payload: KH-4A s/n 1004 / Agena D 1174 / OPS 3444. Mass: 1,590 kg (3,500 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-03-09 . USAF Sat Cat: 752 . COSPAR: 1964-008A. Apogee: 429 km (266 mi). Perigee: 172 km (106 mi). Inclination: 74.9000 deg. Period: 90.50 min. Summary: KH-4A. Main cameras operated satisfactorily. Minor degradations due to static and light leaks..

1964 February 28 - . 03:20 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 402 / Agena D 2316.
  • OPS 3722 - . Payload: Ferret 5 / Agena D 2316. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Ferret. Decay Date: 1969-02-19 . USAF Sat Cat: 759 . COSPAR: 1964-011A. Apogee: 516 km (320 mi). Perigee: 491 km (305 mi). Inclination: 82.1000 deg. Period: 94.70 min.

1964 March 24 - . 22:22 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 396 / Agena D 1175. FAILURE: Failure. Failed Stage: U.
  • KH-4A 1003 - . Payload: KH-4A s/n 1003. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-03-24 . COSPAR: F640324AA. Summary: KH-4A. Mission failed..
  • ORBIS 1 - . Payload: ORBIS 1. Nation: USA. Agency: USAF. Spacecraft: KH-4A. COSPAR: F640324AD.
  • SRV 630 - . Payload: SRV 1003-2. Nation: USA. Agency: USAF. Spacecraft: KH-4A. COSPAR: F640324AC.
  • SRV 631 - . Payload: SRV 1003-1. Nation: USA. Agency: USAF. Spacecraft: KH-4A. COSPAR: F640324AB.

1964 April 27 - . 23:23 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 395 / Agena D 1604.
  • KH-4A 1005 - . Payload: KH-4A s/n 1005 / Agena D 1604 / OPS 2921. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-05-26 . USAF Sat Cat: 796 . COSPAR: 1964-022A. Apogee: 445 km (276 mi). Perigee: 175 km (108 mi). Inclination: 79.9000 deg. Period: 90.80 min. Summary: KH-4A. Mission failed. Recovery vehicle impacted in Venezuela..

1964 June 4 - . 22:59 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 403 / Agena D 1176.
  • KH-4A 1006 - . Payload: KH-4A s/n 1006 / Agena D 1176 / OPS 3483. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-06-18 . USAF Sat Cat: 802 . COSPAR: 1964-027A. Apogee: 429 km (266 mi). Perigee: 149 km (92 mi). Inclination: 80.0000 deg. Period: 90.30 min. Summary: KH-4A. Highest quality imagery attained to date from the KH-4 system..

1964 June 13 - . 15:47 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 408 / Agena D 1606.
  • KH-5 9065A - . Payload: KH-5 s/n 9065A / OPS 3236. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-5. Decay Date: 1965-06-02 . USAF Sat Cat: 811 . COSPAR: 1964-030A. Apogee: 362 km (224 mi). Perigee: 352 km (218 mi). Inclination: 114.9000 deg. Period: 91.70 min. Summary: KH-5; carried Star Flash experiment. Officially: Spacecraft Engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • Starflash 1A - . Nation: USA. Agency: USAF. Spacecraft: Starflash. COSPAR: 1964-030xx.

1964 June 19 - . 23:18 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 410 / Agena D 1609.
  • KH-4A 1007 - . Payload: KH-4A s/n 1007 / Agena D 1609 / OPS 3754. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-07-16 . USAF Sat Cat: 814 . COSPAR: 1964-032A. Apogee: 451 km (280 mi). Perigee: 180 km (110 mi). Inclination: 85.0000 deg. Period: 90.90 min. Summary: KH-4A. Out-of-focus area on some film..

1964 July 2 - . 23:59 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 409 / Agena D 2315.
  • OPS 3395 - . Payload: Ferret 6 / Agena D 2315. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Ferret. Decay Date: 1969-08-07 . USAF Sat Cat: 824 . COSPAR: 1964-035A. Apogee: 520 km (320 mi). Perigee: 502 km (311 mi). Inclination: 82.1000 deg. Period: 94.90 min.

1964 July 10 - . 23:15 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 404 / Agena D 1177.
  • KH-4A 1008 - . Payload: KH-4A s/n 1008 / Agena D 1117 / OPS 3491. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-08-06 . USAF Sat Cat: 828 . COSPAR: 1964-037A. Apogee: 346 km (214 mi). Perigee: 173 km (107 mi). Inclination: 84.9000 deg. Period: 89.70 min. Summary: KH-4A. Cameras operated satisfactorily, some light leaks..

1964 August 5 - . 23:15 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 413 / Agena D 1605.
  • KH-4A 1009 - . Payload: KH-4A s/n 1009 / Agena D 1605 / OPS 3042. Mass: 1,540 kg (3,390 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-09-01 . USAF Sat Cat: 846 . COSPAR: 1964-043A. Apogee: 436 km (270 mi). Perigee: 182 km (113 mi). Inclination: 80.0000 deg. Period: 90.70 min. Summary: KH-4A. Cameras operated successfully..

1964 August 21 - . 15:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 412 / Agena D 1603.
  • KH-5 9066A - . Payload: KH-5 s/n 9066A / Agena D 1603 / OPS 2739. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-5. Decay Date: 1965-03-31 . USAF Sat Cat: 861 . COSPAR: 1964-048A. Apogee: 363 km (225 mi). Perigee: 351 km (218 mi). Inclination: 114.9000 deg. Period: 91.70 min. Summary: KH-5. 15% of stellar film degraded by flare. Image smearing on leading edge of main camera film. Final ARGON mission. Officially: Spacecraft Engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • Starflash 1B - . Nation: USA. Agency: USAF. Spacecraft: Starflash. Decay Date: 1965-03-31 . USAF Sat Cat: 861 . COSPAR: 1964-048xx. Apogee: 200 km (120 mi). Perigee: 196 km (121 mi). Inclination: 115.0000 deg. Period: 88.50 min.

1964 September 14 - . 22:53 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 405 / Agena D 1178.
  • KH-4A 1010 - . Payload: KH-4A s/n 1010 / Agena D 1178 / OPS 3497. Mass: 1,330 kg (2,930 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-10-06 . USAF Sat Cat: 882 . COSPAR: 1964-056A. Apogee: 455 km (282 mi). Perigee: 174 km (108 mi). Inclination: 84.9000 deg. Period: 90.90 min. Summary: KH-4A. Small out of focus areas on both cameras at random times throughout the mission..

1964 October 5 - . 21:50 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 421 / Agena D SS-01A 1170.
  • KH-4A 1011 - . Payload: KH-4A s/n 1011 / Agena D 1170 / OPS 3333. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-10-26 . USAF Sat Cat: 890 . COSPAR: 1964-061A. Apogee: 440 km (270 mi). Perigee: 182 km (113 mi). Inclination: 80.0000 deg. Period: 90.80 min. Summary: KH-4A. Primary mode of recovery failed on second portion of the mission (1011-2). Small out of focus areas present at random on both cameras..

1964 October 17 - . 22:02 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 418 / Agena D SS-01A 1179.
  • KH-4A 1012 - . Payload: KH-4A s/n 1012 / Agena D 1179 / OPS 3559. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-11-04 . USAF Sat Cat: 911 . COSPAR: 1964-067A. Apogee: 416 km (258 mi). Perigee: 189 km (117 mi). Inclination: 75.0000 deg. Period: 90.60 min. Summary: KH-4A. Vehicle attitude became erratic on the second portion of the mission necessitating an early recovery..

1964 November 2 - . 21:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 420 / Agena D SS-01A 1173.
  • KH-4A 1013 - . Payload: KH-4A s/n 1013 - Agena D 1173 / OPS 5434. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-11-28 . USAF Sat Cat: 921 . COSPAR: 1964-071A. Apogee: 210 km (130 mi). Perigee: 181 km (112 mi). Inclination: 51.2000 deg. Period: 88.40 min. Summary: KH-4A. Program anomaly occurred immediately after launch when both cameras operated for 417 frames. Main cameras ceased operation on rev 52D of first portion of mission negating second portion. About 65% of aft camera film is out of focus..

1964 November 4 - . 02:12 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 430 / Agena D SS-01A 2317.
  • OPS 3062 - . Payload: Ferret 7 / Agena D 2317. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Ferret. Decay Date: 1969-11-05 . USAF Sat Cat: 922 . COSPAR: 1964-072A. Apogee: 526 km (326 mi). Perigee: 512 km (318 mi). Inclination: 82.0000 deg. Period: 95.00 min.

1964 November 18 - . 20:35 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 416 / Agena D SS-01A 1180.
  • KH-4A 1014 (ORBIS) - . Payload: KH-4A s/n 1014 & Orbis / Agena D 1180 / OPS 3360. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1964-12-06 . USAF Sat Cat: 930 . COSPAR: 1964-075A. Apogee: 329 km (204 mi). Perigee: 177 km (109 mi). Inclination: 70.0000 deg. Period: 89.60 min. Summary: KH-4A. Cameras operated successfully..
  • ORBIS - . Nation: USA. Agency: USAF. Spacecraft: KH-4A. Decay Date: 1964-12-06 . USAF Sat Cat: 930 . COSPAR: 1964-075xx. Apogee: 276 km (171 mi). Perigee: 167 km (103 mi). Inclination: 70.0000 deg. Period: 88.90 min.

1964 December 19 - . 21:10 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 424 / Agena D SS-01A 1607.
  • KH-4A 1015 - . Payload: KH-4A s/n 1015 / Agena D 1607 / OPS 3358. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-01-14 . USAF Sat Cat: 961 . COSPAR: 1964-085A. Apogee: 405 km (251 mi). Perigee: 193 km (119 mi). Inclination: 74.9000 deg. Period: 90.50 min. Summary: KH-4A. Discrepancies in planned and actual coverage due to telemetry problems during the first 6 revolutions. Small out-of-focus areas on film from aft camera..

1964 December 21 - . 19:08 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 425 / Agena D SS-01A 2355.
  • OPS 3762/Agena D 2355 - . Nation: USA. Agency: NRO; USAF. Program: ELINT. Spacecraft: Ferret. Decay Date: 1965-01-11 . USAF Sat Cat: 964 . COSPAR: 1964-087A. Apogee: 264 km (164 mi). Perigee: 238 km (147 mi). Inclination: 70.1000 deg. Period: 89.50 min. Summary: Unknown mission. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..

1965 January 15 - . 21:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 414 / Agena D SS-01A 1608.
  • KH-4A 1016 - . Payload: KH-4A s/n 1016 / Agena D 1608 / OPS 3928. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-02-09 . USAF Sat Cat: 972 . COSPAR: 1965-002A. Apogee: 420 km (260 mi). Perigee: 180 km (110 mi). Inclination: 75.0000 deg. Period: 90.50 min. Summary: KH-4A. Smearing of highly reflective images due to reflections within camera..

1965 February 25 - . 21:44 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 432 / Agena D SS-01B 1611.
  • KH-4A 1017 - . Payload: KH-4A s/n 1017 / Agena D 1611 / OPS 4782. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-03-18 . USAF Sat Cat: 1096 . COSPAR: 1965-013A. Apogee: 377 km (234 mi). Perigee: 177 km (109 mi). Inclination: 75.1000 deg. Period: 90.10 min. Summary: KH-4A. Capping shutter malfunction occurred during last 5 passes of mission..

1965 March 25 - . 21:11 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 429 / Agena D SS-01B 1612.
  • KH-4A 1018 - . Payload: KH-4A s/n 1018 / Agena D 1612 / OPS 4803. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-04-04 . USAF Sat Cat: 1307 . COSPAR: 1965-026A. Apogee: 381 km (236 mi). Perigee: 237 km (147 mi). Inclination: 96.0000 deg. Period: 90.70 min. Summary: KH-4A. Cameras operated successfully. First KH-4A reconnaissance system to be launched into a retrograde orbit..

1965 April 29 - . 21:44 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 437 / Agena D SS-01B 1614.
  • KH-4A 1019 - . Payload: KH-4A s/n 1019 / Agena D 1614 / OPS 5023. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-05-26 . USAF Sat Cat: 1330 . COSPAR: 1965-033A. Apogee: 461 km (286 mi). Perigee: 181 km (112 mi). Inclination: 85.0000 deg. Period: 91.00 min. Summary: KH-4A. Cameras operated successfully. Malfunction in recovery mode on 1019-2 negated recovery..
  • SRV 627 - . Payload: SRV 1019-2 / OPS 5023. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO; CIA. Spacecraft: KH-4A. Decay Date: 1965-06-08 . USAF Sat Cat: 1367 . COSPAR: 1965-033B. Apogee: 509 km (316 mi). Perigee: 134 km (83 mi). Inclination: 84.9000 deg. Period: 91.00 min. Summary: Cameras operated successfully. Malfunction in recovery mode on 1019-2 negated recovery..

1965 May 18 - . 18:02 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 438 / Agena D SS-01B 1615.
  • KH-4A 1021 - . Payload: KH-4A s/n 1021 / Agena D 1615 / OPS 8431. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-06-15 . USAF Sat Cat: 1374 . COSPAR: 1965-037A. Apogee: 399 km (247 mi). Perigee: 321 km (199 mi). Inclination: 75.0000 deg. Period: 91.70 min. Summary: KH-4A. Aft camera ceased operation on pass 102..

1965 June 9 - . 21:58 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 444 / Agena D SS-01B 1613.
  • KH-4A 1020 - . Payload: KH-4A s/n 1020 / Agena D 1613 / OPS 8425. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-06-15 . USAF Sat Cat: 1396 . COSPAR: 1965-045A. Apogee: 355 km (220 mi). Perigee: 176 km (109 mi). Inclination: 75.1000 deg. Period: 89.90 min. Summary: KH-4A. All cameras operated satisfactorily. Erratic attitude caused an early recovery after the second day of 1020-2..

1965 July 17 - . 05:55 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 422 / Agena D SS-01B 2702.
  • OPS 8411 - . Payload: Ferret 8 / Agena D 2702. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Ferret. Decay Date: 1968-12-18 . USAF Sat Cat: 1447 . COSPAR: 1965-055A. Apogee: 512 km (318 mi). Perigee: 471 km (292 mi). Inclination: 70.2000 deg. Period: 94.50 min.

1965 July 19 - . 22:01 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 446 / Agena D SS-01B 1617.
  • KH-4A 1022 - . Payload: KH-4A s/n 1022 / Agena D 1617 / OPS 5543. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-08-18 . USAF Sat Cat: 1457 . COSPAR: 1965-057A. Apogee: 461 km (286 mi). Perigee: 189 km (117 mi). Inclination: 85.1000 deg. Period: 91.00 min. Summary: KH-4A. All cameras operated satisfactorily..

1965 August 17 - . 20:59 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 449 / Agena D SS-01B 1618.
  • KH-4A 1023 - . Payload: KH-4A s/n 1023 / Agena D 1618 / OPS 7208. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-10-11 . USAF Sat Cat: 1513 . COSPAR: 1965-067A. Apogee: 399 km (247 mi). Perigee: 179 km (111 mi). Inclination: 70.0000 deg. Period: 90.30 min. Summary: KH-4A. Program anomaly caused the fore camera to cease operation during revolutions 103-132..

1965 September 22 - . 21:31 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 458 / Agena D SS-01B 1619.
  • KH-4A 102 - . Payload: KH-4A s/n 102 / Agena D 1619 / OPS 7221. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-10-11 . USAF Sat Cat: 1602 . COSPAR: 1965-074A. Apogee: 364 km (226 mi). Perigee: 191 km (118 mi). Inclination: 80.0000 deg. Period: 90.00 min. Summary: KH-4A. All cameras operated satisfactorily. Cameras not operated on passes 88D-93D..

1965 October 5 - . 17:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 433 / Agena D SS-01B 1616.
  • KH-4A 1025 - . Payload: KH-4A s/n 1025 / Agena D 1616 / OPS 5325. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-10-29 . USAF Sat Cat: 1615 . COSPAR: 1965-079A. Apogee: 322 km (200 mi). Perigee: 202 km (125 mi). Inclination: 75.1000 deg. Period: 89.70 min. Summary: KH-4A. Main cameras operated satisfactorily..

1965 October 14 - . 13:11 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 435 (TA4) / Agena D SS-01B 680.
  • OGO 2 - . Payload: OGO C (S-50). Mass: 507 kg (1,117 lb). Nation: USA. Agency: NASA Greenbelt. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OGO. Decay Date: 1981-09-17 . USAF Sat Cat: 1620 . COSPAR: 1965-081A. Apogee: 1,515 km (941 mi). Perigee: 419 km (260 mi). Inclination: 87.4000 deg. Period: 104.40 min. OGO 2 was a large observatory instrumented with 20 experiments designed to make simultaneous, correlative observations of aurora and airglow emissions, energetic particles, magnetic field variations, ionospheric properties, etc., especially over the polar areas. Soon after achieving orbit, difficulties in maintaining earth lock with horizon scanners caused exhaustion of attitude control gas by October 23, 1965, 10 days after launch. At this time, the spacecraft entered a spin mode (about 0.11 rpm) with a large coning angle about the previously vertical axis. Five experiments became useless when the satellite went into this spin mode. Six additional experiments were degraded by this loss of attitude control. By April 1966, both batteries had failed, so subsequent observations were limited to sunlit portions of the orbit. By December 1966, only eight experiments were operational, five of which were not degraded by the spin mode operation. By April 1967, the tape recorders had malfunctioned and only one third of the recorded data could be processed. Spacecraft power and periods of operational scheduling conflicts created six large data gaps so that data were observed on a total of about 306 days of the 2-yr, 18-day total span of observed satellite data to November 1, 1967. The spacecraft was shut down on November 1, 1967, with eight experiments still operational. It was reactivated for 2 weeks in February 1968 to operate the rubidium vapor magnetometer experiment.

1965 October 28 - . 21:17 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 439 / Agena D SS-01B 1620.
  • KH-4A 1026 - . Payload: KH-4A s/n 1026 / Agena D 1620 / OPS 2155. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-11-17 . USAF Sat Cat: 1637 . COSPAR: 1965-086A. Apogee: 432 km (268 mi). Perigee: 173 km (107 mi). Inclination: 74.9000 deg. Period: 90.50 min. Summary: KH-4A. All cameras operated satisfactorily..

1965 December 9 - . 21:10 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 448 / Agena D SS-01B 1621.
  • KH-4A 1027 - . Payload: KH-4A s/n 1027 / Agena D 1621 / OPS 7249. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1965-12-26 . USAF Sat Cat: 1816 . COSPAR: 1965-102A. Apogee: 439 km (272 mi). Perigee: 186 km (115 mi). Inclination: 80.1000 deg. Period: 90.80 min. Summary: KH-4A. Erratic attitude necessitated recovery after two days of operation. All cameras operated satisfactorily..

1965 December 24 - . 21:06 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 451 / Agena D SS-01B 1610.
  • KH-4A 1028 - . Payload: KH-4A s/n 1028 / Agena D 1610 / OPS 4639. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1966-01-20 . USAF Sat Cat: 1866 . COSPAR: 1965-110A. Apogee: 443 km (275 mi). Perigee: 181 km (112 mi). Inclination: 80.0000 deg. Period: 90.70 min. Summary: KH-4A. Cameras operated satisfactorily..

1966 February 2 - . 21:32 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 450 / Agena D SS-01B 1623.
  • KH-4A 1029 - . Payload: KH-4A s/n 1029 / Agena D 1623 / OPS 7291. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1966-02-27 . USAF Sat Cat: 1968 . COSPAR: 1966-007A. Apogee: 428 km (265 mi). Perigee: 182 km (113 mi). Inclination: 75.0000 deg. Period: 90.60 min. Summary: KH-4A. Both panoramic cameras were operational throughout..

1966 February 9 - . 19:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 428 / Agena D SS-01B 2703.
  • OPS 1439 - . Payload: Ferret 9 / Agena D 2703. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Ferret. Decay Date: 1969-09-26 . USAF Sat Cat: 1997 . COSPAR: 1966-009A. Apogee: 511 km (317 mi). Perigee: 507 km (315 mi). Inclination: 82.0000 deg. Period: 94.70 min.

1966 March 9 - . 22:02 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 452 / Agena D SS-01B 1622.
  • KH-4A 1030 - . Payload: KH-4A s/n 1030 / Agena D 1622 / OPS 3488. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1966-03-29 . USAF Sat Cat: 2099 . COSPAR: 1966-018A. Apogee: 418 km (259 mi). Perigee: 180 km (110 mi). Inclination: 75.0000 deg. Period: 90.40 min. Summary: KH-4A. All cameras operated satisfactorily..

1966 April 7 - . 22:02 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 474 / Agena D SS-01B 1627.
  • KH-4A 1031 - . Payload: KH-4A s/n 1031 / Agena D 1627 / OPS 1612. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1966-04-26 . USAF Sat Cat: 2136 . COSPAR: 1966-029A. Apogee: 312 km (193 mi). Perigee: 193 km (119 mi). Inclination: 75.1000 deg. Period: 89.60 min. Summary: KH-4A. The aft-looking camera malfunctioned after the recovery of bucket '1'. No material was received in bucket '2' (1031-2)..

1966 May 3 - . 19:25 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 465 / Agena D SS-01B 1625. FAILURE: Failure. Failed Stage: U.
  • KH-4A 1032 - . Payload: KH-4A s/n 1032. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1966-05-04 . COSPAR: F660503A.
  • SRV 707 - . Payload: SRV 1032-1. Nation: USA. Agency: USAF. Spacecraft: KH-4A. COSPAR: F660503B.
  • SRV 708 - . Payload: SRV 1032-2. Nation: USA. Agency: USAF. Spacecraft: KH-4A. COSPAR: F660503C.

1966 May 24 - . 02:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 469 / Agena D SS-01B 1630.
  • KH-4A 1033 - . Payload: KH-4A s/n 1033 / Agena D 1630 / OPS 1778. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1966-06-09 . USAF Sat Cat: 2181 . COSPAR: 1966-042A. Apogee: 271 km (168 mi). Perigee: 179 km (111 mi). Inclination: 66.0000 deg. Period: 89.00 min. Summary: KH-4A. The stellar camera shutter of bucket '2' remained open for approximately 200 frames..

1966 June 21 - . 21:31 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 466 / Agena D SS-01B 1626.
  • KH-4A 1034 - . Payload: KH-4A s/n 1034 / Agena D 1626 / OPS 1599. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1966-07-14 . USAF Sat Cat: 2227 . COSPAR: 1966-055A. Apogee: 359 km (223 mi). Perigee: 207 km (128 mi). Inclination: 80.1000 deg. Period: 90.10 min. Summary: KH-4A. Failure of velocity/altitude programmer produced poor imagery after revolution 5..

1966 June 24 - . 00:12 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 473 (TA7) / Agena D SS-01B 631.
  • Pageos 1 - . Payload: Pageos A. Mass: 55 kg (121 lb). Nation: USA. Agency: NASA Langley. Class: Earth. Type: Geodetic satellite. Spacecraft: Pageos. Decay Date: 1975-07-12 . USAF Sat Cat: 2253 . COSPAR: 1966-056A. Apogee: 4,220 km (2,620 mi). Perigee: 3,913 km (2,431 mi). Inclination: 85.4000 deg. Period: 177.10 min. The PAGEOS (Passive Geodetic Earth Orbiting Satellite) spacecraft was a 30.48-m inflatable sphere, and had no instrumentation on board. It was the second (following GEOS 1) NASA satellite in the National Geodetic Satellites Program. The launch, orbit, separation, inflation and initial operation were nominal, with more than 40 ground stations participating in the observation program. The orbit was generally considered too high for drag-density study, although some work was done in this area by the Smithsonian Astrophysical Observatory. Additional Details: here....
  • Pageos canister half - . Payload: Pageos canister half. Nation: USA. Agency: NASA Langley. Spacecraft: Pageos. USAF Sat Cat: 2256 . COSPAR: 1966-056C. Apogee: 4,276 km (2,656 mi). Perigee: 4,196 km (2,607 mi). Inclination: 86.9000 deg. Period: 181.40 min.
  • Pageos canister half - . Payload: Pageos canister half. Nation: USA. Agency: NASA Langley. Spacecraft: Pageos. USAF Sat Cat: 2511 . COSPAR: 1966-056D. Apogee: 4,255 km (2,643 mi). Perigee: 4,227 km (2,626 mi). Inclination: 87.0000 deg. Period: 181.50 min.

1966 September 20 - . 21:14 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 477 / Agena D SS-01B 1628.
  • KH-4A 1035 - . Payload: KH-4A s/n 1035 / Agena D 1628 / OPS 1703. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1966-10-12 . USAF Sat Cat: 2427 . COSPAR: 1966-085A. Apogee: 430 km (260 mi). Perigee: 182 km (113 mi). Inclination: 85.1000 deg. Period: 90.60 min. Summary: KH-4A. All cameras operated satisfactorily. First mission flown with pan geometry modification..

1966 December 29 - . 12:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 459 / Agena D SS-01B 2731.
  • OPS 1584 - . Payload: Ferret 10 / Agena D 2731. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Ferret. Decay Date: 1969-04-05 . USAF Sat Cat: 2634 . COSPAR: 1966-118A. Apogee: 495 km (307 mi). Perigee: 487 km (302 mi). Inclination: 75.0000 deg. Period: 94.40 min.

1967 January 14 - . 21:28 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 495 / Agena D SS-01B 1629.
  • KH-4A 1038 - . Payload: KH-4A s/n 1038 / Agena D 1629 / OPS 1664. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1967-02-02 . USAF Sat Cat: 2642 . COSPAR: 1967-002A. Apogee: 355 km (220 mi). Perigee: 177 km (109 mi). Inclination: 80.1000 deg. Period: 89.80 min. Summary: KH-4A. Fair image quality..

1967 February 22 - . 22:02 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 493 / Agena D SS-01B 1635.
  • KH-4A 1039 - . Payload: KH-4A s/n 1039 / Agena D 1635 / OPS 4750. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1967-03-11 . USAF Sat Cat: 2686 . COSPAR: 1967-015A. Apogee: 380 km (230 mi). Perigee: 180 km (110 mi). Inclination: 80.0000 deg. Period: 90.10 min. Summary: KH-4A. Normal KH-4 mission. Light from horizon camera on both main camera records during 1039-1..

1967 March 30 - . 18:54 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 501 / Agena D SS-01B 1636.
  • KH-4A 1040 - . Payload: KH-4A s/n 1040 / Agena D 1636 / OPS 4779. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1967-04-17 . USAF Sat Cat: 2736 . COSPAR: 1967-029A. Apogee: 326 km (202 mi). Perigee: 167 km (103 mi). Inclination: 85.0000 deg. Period: 89.50 min. Summary: KH-4A. Satellite flown nose first, all cameras operated satisfactorily..

1967 July 25 - . 03:48 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 496 / Agena D SS-01B 2732.
  • OPS 1879 - . Payload: Ferret 11 / Agena D 2732. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Ferret. Decay Date: 1969-06-05 . USAF Sat Cat: 2890 . COSPAR: 1967-071A. Apogee: 608 km (377 mi). Perigee: 390 km (240 mi). Inclination: 75.1000 deg. Period: 94.50 min.

1967 July 28 - . 14:21 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 478 (TA8) / Agena D SS-01B 680.
  • OGO 4 - . Payload: OGO D (NASA S-50A). Mass: 634 kg (1,397 lb). Nation: USA. Agency: NASA Greenbelt. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OGO. Decay Date: 1972-08-16 . USAF Sat Cat: 2895 . COSPAR: 1967-073A. Apogee: 885 km (549 mi). Perigee: 422 km (262 mi). Inclination: 86.0000 deg. Period: 97.80 min. OGO 4 was a large observatory instrumented with experiments designed to study the interrelationships between the aurora and airglow emissions, energetic particle activity, geomagnetic field variation, ionospheric ionization and recombination, and atmospheric heating which take place during a period of increased solar activity. After the spacecraft achieved orbit and the experiments were deployed into an operating mode, an attitude control problem occurred. This condition was corrected by ground control procedures until complete failure of the tape recording systems in mid-January 1969. At that time, due to the difficulty of maintaining attitude control without the tape recorders, the attitude control system was commanded off, and the spacecraft was placed into a spin-stabilized mode about the axis which was previously maintained vertically. In this mode, seven of the remaining experiments were turned off since no meaningful data could be observed by them. On October 23, 1969, the satellite was turned off. It was reactivated again in January 1970 for 2 months to obtain VLF observations.

1968 January 17 - . 10:12 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 498 / Agena D 2733.
  • OPS 1965 - . Payload: Ferret 12 / Agena D 2733. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; USAF. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Ferret. Decay Date: 1970-07-07 . USAF Sat Cat: 3097 . COSPAR: 1968-004A. Apogee: 536 km (333 mi). Perigee: 462 km (287 mi). Inclination: 75.1000 deg. Period: 94.60 min.

Home - Browse - Contact
© / Conditions for Use