Encyclopedia Astronautica
Home - Search - Browse - Alphabetic Index: 0- 1- 2- 3- 4- 5- 6- 7- 8- 9
A- B- C- D- E- F- G- H- I- J- K- L- M- N- O- P- Q- R- S- T- U- V- W- X- Y- Z

---

---

Thor SLV-2A Agena D

---

AKA: DSV-2C; SLV-2A; Thor Agena D SLV-2A/D; Thrust Augmented Thor. Status: Retired 1968. First Launch: 1963-02-28. Last Launch: 1968-01-17. Number: 61 . Thrust: 1,571.00 kN (353,174 lbf). Gross mass: 67,819 kg (149,515 lb). Height: 31.00 m (101.00 ft). Diameter: 2.44 m (8.00 ft). Apogee: 1,000 km (600 mi).

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

Family: orbital launch vehicle. Country: USA. Engines: Bell 8096, MB-3-3. Spacecraft: GRAB, KH-5, SECOR, Ferret, KH-4, NRL ELINT, KH-6, P 11, SSF, KH-4A, GGSE, Starflash, OGO, Quill, Pageos. Projects: ELINT. Launch Sites: Vandenberg, Vandenberg SLC2E, Vandenberg SLC1W, Vandenberg SLC1E, Vandenberg SLC2W, Vandenberg SLC3W. Stages: Delta Thor TA, Agena D, Castor 1. Agency: Douglas.

• 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 Bus: WS-117. Spacecraft: KH-4. Decay Date: 1963-02-28 . KH-4. Mission failed..

• SRV 610 - . Mass: 1,200 kg (2,600 lb). Nation: USA. Agency: USAF. Spacecraft Bus: WS-117. Spacecraft: KH-4.

• 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 Bus: WS-117. Spacecraft: KH-6. Decay Date: 1963-03-18 . 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: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: SSF. Spacecraft: SSF. Decay Date: 1963-03-18 . Ferret subsatellite aboard first launch of KH-6. Mission failed..

• P-11 - . Payload: P-11. Nation: USA. Agency: USAF. Spacecraft Bus: P 11. Spacecraft: P 11.

• KH-6 8002 - . Payload: KH-6 s/n 8002 / Agena D 1165 / OPS 0924. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. 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)..

• KH-4 9054 - . Payload: KH-4 s/n 9054 / Agena D 1161 / OPS 0954. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4. Some imagery seriously affected by corona..

• KH-4 9056 - . Payload: KH-4 s/n 9056 / Agena D 1166 / OPS 0999. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. 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: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: SSF. 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. Radiation data. First successful flight of P-11 bus, mainly used for radar signals intelligence gathering..

• KH 4A-07 - . Payload: KH-6 s/n 8003 / Agena D 1167 / OPS 1370. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. 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)..

• KH-4A 1001 - . Payload: KH-4A s/n 1001 / Agena D 1162 / OPS 1419. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. First mission of KH-4A. Some film was fogged. Two buckets but 1001-2 was never recovered..

• KH-4A 1002 - . Payload: KH-4A s/n 1002 / Agena D 1163 / OPS 1353. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Severe light leaks, 1002-2 never recovered, indefinite postponement of KH-4A series..

• KH-5 9059A - . Payload: KH-5 s/n 9059A/Agena D 1601 / OPS 2437. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. 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: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: SSF. 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. Radar monitoring..

• KH-4 9062 - . Payload: KH-4 s/n 9062 / Agena D 1168 / OPS 1388. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. 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: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: SSF. 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. Radar monitoring..

• P-11 motor - . Mass: 1,200 kg (2,600 lb). Nation: USA. Agency: USAF. Spacecraft Bus: WS-117. Spacecraft: KH-4. Decay Date: 1964-01-08 . COSPAR: 1963-055xx.

• Agena D 2354 - . Mass: 700 kg (1,540 lb). Nation: USA. Agency: USAF. Spacecraft Bus: Ferret. Spacecraft: Ferret. USAF Sat Cat: 727 . COSPAR: 1964-001A. Apogee: 937 km (582 mi). Perigee: 906 km (562 mi). Inclination: 69.9000 deg. Period: 103.50 min. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• SECOR 1 - . Payload: EGRS 1. Mass: 18 kg (39 lb). Nation: USA. Agency: US Army. Class: Earth. Type: Geodetic satellite. Spacecraft Bus: SECOR. Spacecraft: SECOR. USAF Sat Cat: 729 . COSPAR: 1964-001C. Apogee: 922 km (572 mi). Perigee: 904 km (561 mi). Inclination: 69.9000 deg. Period: 103.30 min. Located Pacific islands. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• GGSE 1 - . Payload: NRL PL134 / Poppy 3C (Poppy 20-inch). Mass: 39 kg (85 lb). Nation: USA. Agency: NRL. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Poppy. Spacecraft: Poppy. USAF Sat Cat: 728 . COSPAR: 1964-001B. Apogee: 916 km (569 mi). Perigee: 899 km (558 mi). Inclination: 69.9000 deg. Period: 103.20 min.

  First launch of a triplet of Poppy naval signals intelligence satellites, which would lead to the NOSS production series. Official and secondary mission: Gravity gradient stabilization tests. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• Unidentified - . Payload: NRL PL135 / Poppy 3B (Poppy 20-inch). Mass: 40 kg (88 lb). Nation: USA. Agency: NRL. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Poppy. Spacecraft: Poppy. USAF Sat Cat: 731 . COSPAR: 1964-001E. Apogee: 919 km (571 mi). Perigee: 902 km (560 mi). Inclination: 69.9000 deg. Period: 103.20 min. Poppy naval signals intelligence satellite..

• Solrad 7A - . Payload: NRL PL124 / Poppy 3A (Poppy 24-inch). Mass: 45 kg (99 lb). Nation: USA. Agency: NRL. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Poppy. Spacecraft: Poppy. USAF Sat Cat: 730 . COSPAR: 1964-001D. Apogee: 920 km (570 mi). Perigee: 902 km (560 mi). Inclination: 69.9000 deg. Period: 103.20 min. Poppy naval signals intelligence satellite. Official and secondary mission: Solar radiation data. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..

• KH-4A 1004 - . Payload: KH-4A s/n 1004 / Agena D 1174 / OPS 3444. Mass: 1,590 kg (3,500 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Main cameras operated satisfactorily. Minor degradations due to static and light leaks..

• OPS 3722 - . Payload: Ferret 5 / Agena D 2316. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Ferret. 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.

• 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 Bus: WS-117. Spacecraft: KH-4A. Decay Date: 1964-03-24 . KH-4A. Mission failed..

• ORBIS 1 - . Payload: ORBIS 1. Mass: 2,000 kg (4,400 lb). Nation: USA. Agency: USAF. Spacecraft Bus: WS-117. Spacecraft: KH-4A.

• SRV 631 - . Payload: SRV 1003-1. Mass: 2,000 kg (4,400 lb). Nation: USA. Agency: USAF. Spacecraft Bus: WS-117. Spacecraft: KH-4A.

• SRV 630 - . Payload: SRV 1003-2. Mass: 2,000 kg (4,400 lb). Nation: USA. Agency: USAF. Spacecraft Bus: WS-117. Spacecraft: KH-4A.

• KH-4A 1005 - . Payload: KH-4A s/n 1005 / Agena D 1604 / OPS 2921. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Mission failed. Recovery vehicle impacted in Venezuela..

• KH-4A 1006 - . Payload: KH-4A s/n 1006 / Agena D 1176 / OPS 3483. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Highest quality imagery attained to date from the KH-4 system..

• KH-5 9065A - . Payload: KH-5 s/n 9065A / OPS 3236. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. 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 Bus: Starflash. Spacecraft: Starflash. COSPAR: 1964-030xx.

• KH-4A 1007 - . Payload: KH-4A s/n 1007 / Agena D 1609 / OPS 3754. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Out-of-focus area on some film..

• OPS 3395 - . Payload: Ferret 6 / Agena D 2315. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Ferret. 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.

• KH-4A 1008 - . Payload: KH-4A s/n 1008 / Agena D 1117 / OPS 3491. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Cameras operated satisfactorily, some light leaks..

• KH-4A 1009 - . Payload: KH-4A s/n 1009 / Agena D 1605 / OPS 3042. Mass: 1,540 kg (3,390 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Cameras operated successfully..

• KH-5 9066A - . Payload: KH-5 s/n 9066A / Agena D 1603 / OPS 2739. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. 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 Bus: Starflash. 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.

• KH-4A 1010 - . Payload: KH-4A s/n 1010 / Agena D 1178 / OPS 3497. Mass: 1,330 kg (2,930 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Small out of focus areas on both cameras at random times throughout the mission..

• KH-4A 1011 - . Payload: KH-4A s/n 1011 / Agena D 1170 / OPS 3333. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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.

  The 100th Thor/Agena, a Thrust Augmented Thor/Agena D (421/1170) was launched from Vandenberg AFB by the 6595th ATWg. 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.

• KH-4A 1012 - . Payload: KH-4A s/n 1012 / Agena D 1179 / OPS 3559. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Vehicle attitude became erratic on the second portion of the mission necessitating an early recovery..

• 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 Bus: WS-117. 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. 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..

• OPS 3062 - . Payload: Ferret 7 / Agena D 2317. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Ferret. 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.

• 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: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Cameras operated successfully..

• ORBIS - . Mass: 2,000 kg (4,400 lb). Nation: USA. Agency: USAF. Spacecraft Bus: WS-117. 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.

• KH-4A 1015 - . Payload: KH-4A s/n 1015 / Agena D 1607 / OPS 3358. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. 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..

• OPS 3762/Agena D 2355 - . Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO, USAF. Spacecraft Bus: WS-117. Spacecraft: Quill. Duration: 4.00 days. 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.

  First test of a side-looking radar from outer space. The mission lasted only four days, as planned, before the batteries ran out of power during orbits 72-73. The radar operated 14 times in orbit, between 22 and 26 December, imaging swaths of the northeastern and western United States. Data collected from the 14 radar passes were transmitted over a wideband (UHF) data link as they were obtained ("real time") to the Vandenberg or New Boston ground station in view. In addition, during the first seven radar passes data were recorded on film on board the satellite, and on 23 December, during the 33rd orbit, the reentry capsule was jettisoned and recovered. The vehicle and payload performance were within acceptable limits on all parameters. The radar maps covered about 80,000 square miles and the resolution was better than 15 feet in azimuth and 80 feet in ground range. The mission, not declassified until 2012, proved the feasibility of space-based surveillance, leading to the operational Lacrosse satellites of the 1980's.

• KH-4A 1016 - . Payload: KH-4A s/n 1016 / Agena D 1608 / OPS 3928. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Smearing of highly reflective images due to reflections within camera..

• KH-4A 1017 - . Payload: KH-4A s/n 1017 / Agena D 1611 / OPS 4782. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Capping shutter malfunction occurred during last 5 passes of mission..

• KH-4A 1018 - . Payload: KH-4A s/n 1018 / Agena D 1612 / OPS 4803. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Cameras operated successfully. First KH-4A reconnaissance system to be launched into a retrograde orbit..

• KH-4A 1019 - . Payload: KH-4A s/n 1019 / Agena D 1614 / OPS 5023. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. 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: CIA, NRO. Spacecraft Bus: WS-117. 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. Cameras operated successfully. Malfunction in recovery mode on 1019-2 negated recovery..

• KH-4A 1021 - . Payload: KH-4A s/n 1021 / Agena D 1615 / OPS 8431. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Aft camera ceased operation on pass 102..

• KH-4A 1020 - . Payload: KH-4A s/n 1020 / Agena D 1613 / OPS 8425. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. All cameras operated satisfactorily. Erratic attitude caused an early recovery after the second day of 1020-2..

• OPS 8411 - . Payload: Ferret 8 / Agena D 2702. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Ferret. 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.

• KH-4A 1022 - . Payload: KH-4A s/n 1022 / Agena D 1617 / OPS 5543. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. All cameras operated satisfactorily..

• KH-4A 1023 - . Payload: KH-4A s/n 1023 / Agena D 1618 / OPS 7208. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Program anomaly caused the fore camera to cease operation during revolutions 103-132..

• KH-4A 102 - . Payload: KH-4A s/n 102 / Agena D 1619 / OPS 7221. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. All cameras operated satisfactorily. Cameras not operated on passes 88D-93D..

• KH-4A 1025 - . Payload: KH-4A s/n 1025 / Agena D 1616 / OPS 5325. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Main cameras operated satisfactorily..

• OGO 2 - . Payload: OGO C (S-50). Mass: 507 kg (1,117 lb). Nation: USA. Agency: NASA Greenbelt. Class: Earth. Type: Magnetosphere satellite. Spacecraft Bus: OGO. 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.

• KH-4A 1026 - . Payload: KH-4A s/n 1026 / Agena D 1620 / OPS 2155. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. All cameras operated satisfactorily..

• KH-4A 1027 - . Payload: KH-4A s/n 1027 / Agena D 1621 / OPS 7249. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Erratic attitude necessitated recovery after two days of operation. All cameras operated satisfactorily..

• KH-4A 1028 - . Payload: KH-4A s/n 1028 / Agena D 1610 / OPS 4639. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Cameras operated satisfactorily..

• KH-4A 1029 - . Payload: KH-4A s/n 1029 / Agena D 1623 / OPS 7291. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Both panoramic cameras were operational throughout..

• OPS 1439 - . Payload: Ferret 9 / Agena D 2703. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Ferret. 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.

• KH-4A 1030 - . Payload: KH-4A s/n 1030 / Agena D 1622 / OPS 3488. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. All cameras operated satisfactorily..

• KH-4A 1031 - . Payload: KH-4A s/n 1031 / Agena D 1627 / OPS 1612. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. The aft-looking camera malfunctioned after the recovery of bucket '1'. No material was received in bucket '2' (1031-2)..

• 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 Bus: WS-117. Spacecraft: KH-4A. Decay Date: 1966-05-04 .

• SRV 707 - . Payload: SRV 1032-1. Mass: 2,000 kg (4,400 lb). Nation: USA. Agency: USAF. Spacecraft Bus: WS-117. Spacecraft: KH-4A.

• SRV 708 - . Payload: SRV 1032-2. Mass: 2,000 kg (4,400 lb). Nation: USA. Agency: USAF. Spacecraft Bus: WS-117. Spacecraft: KH-4A.

• KH-4A 1033 - . Payload: KH-4A s/n 1033 / Agena D 1630 / OPS 1778. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. The stellar camera shutter of bucket '2' remained open for approximately 200 frames..

• KH-4A 1034 - . Payload: KH-4A s/n 1034 / Agena D 1626 / OPS 1599. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Failure of velocity/altitude programmer produced poor imagery after revolution 5..

• Pageos 1 - . Payload: Pageos A. Mass: 55 kg (121 lb). Nation: USA. Agency: NASA Langley. Class: Earth. Type: Geodetic satellite. Spacecraft Bus: Pageos. 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. Mass: 55 kg (121 lb). Nation: USA. Agency: NASA Langley. Spacecraft Bus: Pageos. 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.

• Pageos canister half - . Payload: Pageos canister half. Mass: 55 kg (121 lb). Nation: USA. Agency: NASA Langley. Spacecraft Bus: Pageos. 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.

• KH-4A 1035 - . Payload: KH-4A s/n 1035 / Agena D 1628 / OPS 1703. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. All cameras operated satisfactorily. First mission flown with pan geometry modification..

• OPS 1584 - . Payload: Ferret 10 / Agena D 2731. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Ferret. 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.

• KH-4A 1038 - . Payload: KH-4A s/n 1038 / Agena D 1629 / OPS 1664. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Fair image quality..

• KH-4A 1039 - . Payload: KH-4A s/n 1039 / Agena D 1635 / OPS 4750. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Normal KH-4 mission. Light from horizon camera on both main camera records during 1039-1..

• KH-4A 1040 - . Payload: KH-4A s/n 1040 / Agena D 1636 / OPS 4779. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft Bus: WS-117. 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. KH-4A. Satellite flown nose first, all cameras operated satisfactorily..

• OPS 1879 - . Payload: Ferret 11 / Agena D 2732. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Ferret. 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.

• 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 Bus: OGO. 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.

• OPS 1965 - . Payload: Ferret 12 / Agena D 2733. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: Ferret. 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.

  The last scheduled Air Force Thrust Augmented Thor/Agena (SLV-2A //498/SS-01B #2733) to be launched from Vandenberg AFB was the 150th Thor/ Agena vehicle fired from there since Discoverer I was launched on 28 February 1959. From now on, the Air Force would use the more advanced Long Tank Thrust Augmented Thor (SLV-2G) - Thorad - and the newer SLV-2H.