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Titan IIID

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Commercial Titan 3 Commercial Titan 3 - COSPAR 1990-056

AKA: SLV-5D;Titan 23D;Titan 3D. Status: Retired 1982. First Launch: 1971-06-15. Last Launch: 1982-11-17. Number: 22 . Payload: 12,300 kg (27,100 lb). Thrust: 10,586.80 kN (2,380,007 lbf). Gross mass: 612,990 kg (1,351,410 lb). Height: 36.00 m (118.00 ft). Diameter: 3.05 m (10.00 ft). Apogee: 185 km (114 mi).

LEO Payload: 12,300 kg (27,100 lb) to a 185 km orbit. Launch Price $: 52.200 million in 1985 dollars.

Stage Data - Titan 3D

• Stage 0. 2 x Titan UA1205. Gross Mass: 226,233 kg (498,758 lb). Empty Mass: 33,798 kg (74,511 lb). Thrust (vac): 5,849.411 kN (1,315,000 lbf). Isp: 263 sec. Burn time: 115 sec. Isp(sl): 238 sec. Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Length: 25.91 m (85.00 ft). Propellants: Solid. No Engines: 1. Engine: UA1205. Status: Out of Production.

• Stage 1. 1 x Titan 3A-1. Gross Mass: 116,573 kg (256,999 lb). Empty Mass: 5,443 kg (11,999 lb). Thrust (vac): 2,339.760 kN (525,999 lbf). Isp: 302 sec. Burn time: 147 sec. Isp(sl): 250 sec. Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Length: 22.28 m (73.09 ft). Propellants: N2O4/Aerozine-50. No Engines: 2. Engine: LR-87-11. Status: In Production.

• Stage 2. 1 x Titan 3A-2. Gross Mass: 29,188 kg (64,348 lb). Empty Mass: 2,653 kg (5,848 lb). Thrust (vac): 453.714 kN (101,999 lbf). Isp: 316 sec. Burn time: 205 sec. Isp(sl): 145 sec. Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Length: 7.90 m (25.90 ft). Propellants: N2O4/Aerozine-50. No Engines: 1. Engine: LR-91-11. Status: In Production.

Photo Gallery

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Titan 3D Titan 3D - COSPAR 1978-060

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Titan 3D Credit: © Mark Wade

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• Titan IIIX space booster definition - .

  Space Systems Division began definition phase efforts for a new member of the Titan III family - the Titan IIIX space booster. The new vehicle would be two stages, Stage I with the man-rated components of the Titan Gemini Launch Vehicle and Stage II similar to that being used on the Titan III. The Titan IIIX would use radio rather then inertial guidance.

• Titan IIID launch vehicle work begins. - . The Titan III System Program Office (SMVT) of SAMSO's Deputy for Launch Vehicles initiated work on the design, development, and production of the Titan IIID launch vehicle system..

• Initial launch of a Titan IIID space booster - . Nation: USA. Initial launch of a Titan IIID space booster from Vandenberg AFB..

• KH-9 no. 01 (Big Bird) - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1971-08-06 . USAF Sat Cat: 5297 . COSPAR: 1971-056A. Apogee: 300 km (180 mi). Perigee: 180 km (110 mi). Inclination: 96.40 deg. Period: 89.30 min. The 6595th Space Test Group at Vandenberg AFB launched the first Titan HID space booster (Vehicle D-l). KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• KH-9 no. 02 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1972-02-29 . USAF Sat Cat: 5769 . COSPAR: 1972-002A. Apogee: 330 km (200 mi). Perigee: 153 km (95 mi). Inclination: 97.00 deg. Period: 89.30 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• OPS 7719 - . Payload: SSF-B No. 22. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1979-04-17 . USAF Sat Cat: 5772 . COSPAR: 1972-002D. Apogee: 545 km (338 mi). Perigee: 474 km (294 mi). Inclination: 96.00 deg. Period: 94.80 min. Radar monitoring..

• KH-9 no. 03 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1972-09-13 . USAF Sat Cat: 6094 . COSPAR: 1972-052A. Apogee: 254 km (157 mi). Perigee: 176 km (109 mi). Inclination: 96.00 deg. Period: 88.70 min. KH-9 type satellite. Investigation of the upper atmosphere and outer space. .

• OPS 7803 - . Payload: SSF-B No. 23. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1978-05-06 . USAF Sat Cat: 6096 . COSPAR: 1972-052C. Apogee: 504 km (313 mi). Perigee: 498 km (309 mi). Inclination: 96.20 deg. Period: 94.70 min. Radar monitoring..

• KH-9 no. 04 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1973-01-08 . USAF Sat Cat: 6227 . COSPAR: 1972-079A. Apogee: 281 km (174 mi). Perigee: 160 km (90 mi). Inclination: 96.50 deg. Period: 88.90 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• OPS 8314/2 - . Payload: SSF-C No. 3 / OPS 8314. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 6822 . COSPAR: 1972-079C. Apogee: 1,464 km (909 mi). Perigee: 1,420 km (880 mi). Inclination: 95.60 deg. Period: 114.70 min. ABM monitoring..

• KH-9 no. 05 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1973-05-17 . USAF Sat Cat: 6382 . COSPAR: 1973-014A. Apogee: 262 km (162 mi). Perigee: 150 km (90 mi). Inclination: 95.70 deg. Period: 88.70 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• KH-9 no. 06 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1973-10-12 . USAF Sat Cat: 6727 . COSPAR: 1973-046A. Apogee: 291 km (180 mi). Perigee: 143 km (88 mi). Inclination: 96.20 deg. Period: 88.80 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• Titan 23D no. 8 stage - . Payload: SSF 32. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1973-11-13 . USAF Sat Cat: 6929 . COSPAR: 1973-088C. Apogee: 508 km (315 mi). Perigee: 486 km (301 mi). Inclination: 96.30 deg. Period: 94.50 min. ABM monitoring. .

• KH-9 no. 07 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1974-03-13 . USAF Sat Cat: 6928 . COSPAR: 1973-088A. Apogee: 275 km (170 mi). Perigee: 158 km (98 mi). Inclination: 96.90 deg. Period: 88.80 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• OPS 7705 - . Payload: SSF-B No. 24. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1978-12-26 . USAF Sat Cat: 6931 . COSPAR: 1973-088B. Apogee: 505 km (313 mi). Perigee: 488 km (303 mi). Inclination: 96.30 deg. Period: 94.50 min. Radar monitoring..

• OPS 6630 P/L 2 - . Payload: SSF-C No. 4 / OPS 6630. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 6938 . COSPAR: 1973-088D. Apogee: 1,457 km (905 mi). Perigee: 1,414 km (878 mi). Inclination: 97.00 deg. Period: 114.60 min.

• KH-9 no. 08 Capsule - . Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. COSPAR: 1974-020xx. Apogee: 830 km (510 mi). Perigee: 786 km (488 mi). Inclination: 94.60 deg. Period: 101.10 min. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• KH-9 no. 08 - . Payload: OPS 6245. Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1974-07-28 . USAF Sat Cat: 7242 . COSPAR: 1974-020A. Apogee: 285 km (177 mi). Perigee: 153 km (95 mi). Inclination: 94.50 deg. Period: 88.90 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• OPS 4547 - . Payload: OPS 4547 / SSF-B No. 25. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1980-02-22 . USAF Sat Cat: 7247 . COSPAR: 1974-020C. Apogee: 531 km (329 mi). Perigee: 503 km (312 mi). Inclination: 94.00 deg. Period: 95.00 min. Radar monitoring..

• S73-7 Cal Balloon - . Payload: OPS 6935 / P 73-7. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF AFSC. Spacecraft Bus: Space Test Program Payloads. Spacecraft: S73-7 Cal Balloon. Decay Date: 1974-07-28 . USAF Sat Cat: 7244 . COSPAR: 1974-020B. Apogee: 247 km (153 mi). Perigee: 148 km (91 mi). Inclination: 94.40 deg. Period: 88.50 min. Space Test Program flight S73-7 was launched. The launch was successful but the mission failed when the payload -an infrared calibration balloon - failed to deploy..

• KH-9 no. 09 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1975-03-18 . USAF Sat Cat: 7495 . COSPAR: 1974-085A. Apogee: 272 km (169 mi). Perigee: 115 km (71 mi). Inclination: 96.70 deg. Period: 88.40 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• SESP 73-5 - . Payload: P 73 5 / OPS 8452. Mass: 260 kg (570 lb). Nation: USA. Agency: USAF. Class: Technology. Type: Military technology satellite. Spacecraft Bus: Space Test Program Payloads. Spacecraft: SESP. Decay Date: 1975-05-26 . USAF Sat Cat: 7499 . COSPAR: 1974-085C. Apogee: 2,888 km (1,794 mi). Perigee: 150 km (90 mi). Inclination: 96.90 deg. Period: 116.30 min. Space Test Program flight S73-5 was successfully launched. This was the first of three launches to be made under the Small Secondary Satellite (S3) project. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..

• OPS 6239 - . Payload: SSF-B No. 26. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1980-01-23 . USAF Sat Cat: 7498 . COSPAR: 1974-085B. Apogee: 531 km (329 mi). Perigee: 521 km (323 mi). Inclination: 96.00 deg. Period: 95.10 min. Radar monitoring; may or may not have existed!!!..

• KH-9 no. 10 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1975-11-05 . USAF Sat Cat: 7918 . COSPAR: 1975-051A. Apogee: 272 km (169 mi). Perigee: 157 km (97 mi). Inclination: 96.30 deg. Period: 88.70 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• KH-9 no. 11 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1976-04-01 . USAF Sat Cat: 8467 . COSPAR: 1975-114A. Apogee: 234 km (145 mi). Perigee: 157 km (97 mi). Inclination: 96.30 deg. Period: 88.40 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• KH 9-11 Subsatellite - . Payload: SSF 9 / OPS 5547. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1978-05-01 . USAF Sat Cat: 8468 . COSPAR: 1975-114B. Apogee: 1,558 km (968 mi). Perigee: 236 km (146 mi). Inclination: 96.30 deg. Period: 103.00 min. Not identified as a subsatellite ferret by McDowell..

• KH-9 no. 12 - . Mass: 13,000 kg (28,000 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1976-12-13 . USAF Sat Cat: 9006 . COSPAR: 1976-065A. Apogee: 242 km (150 mi). Perigee: 159 km (98 mi). Inclination: 97.00 deg. Period: 88.50 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• OPS 5366 - . Payload: SSF-D No. 1. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 9008 . COSPAR: 1976-065C. Apogee: 632 km (392 mi). Perigee: 628 km (390 mi). Inclination: 96.40 deg. Period: 97.30 min. Radar monitoring..

• SESP 74-2 - . Payload: P 74-2 / OPS 3986. Mass: 260 kg (570 lb). Nation: USA. Agency: USAF. Class: Technology. Type: Military technology satellite. Spacecraft: SESP. Decay Date: 1986-04-24 . USAF Sat Cat: 9007 . COSPAR: 1976-065B. Apogee: 8,048 km (5,000 mi). Perigee: 236 km (146 mi). Inclination: 97.50 deg. Period: 179.00 min. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• KH-11 no. 1 - . Payload: KH-11 no. 1 / OPS 5705. Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-11. Decay Date: 1979-01-28 . USAF Sat Cat: 9627 . COSPAR: 1976-125A. Apogee: 531 km (329 mi). Perigee: 246 km (152 mi). Inclination: 96.90 deg. Period: 92.30 min. KH-11 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..

• KH-9 no. 13 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1977-12-23 . USAF Sat Cat: 10111 . COSPAR: 1977-056A. Apogee: 239 km (148 mi). Perigee: 155 km (96 mi). Inclination: 97.00 deg. Period: 88.50 min. KH-9 type satellite. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). .

• KH-9 no. 14 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1978-09-11 . USAF Sat Cat: 10733 . COSPAR: 1978-029A. Apogee: 240 km (140 mi). Perigee: 160 km (90 mi). Inclination: 96.40 deg. Period: 88.50 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• OPS 7858 - . Payload: SSF-D No. 2. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 10734 . COSPAR: 1978-029B. Apogee: 645 km (400 mi). Perigee: 639 km (397 mi). Inclination: 95.80 deg. Period: 97.60 min. Radar monitoring..

• KH-11 no. 2 - . Payload: KH-11 no. 2 / OPS 4515. Mass: 13,000 kg (28,000 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-11. Decay Date: 1981-08-23 . USAF Sat Cat: 10947 . COSPAR: 1978-060A. Apogee: 509 km (316 mi). Perigee: 223 km (138 mi). Inclination: 97.00 deg. Period: 91.90 min.

  SAMSO held a successful preliminary design review with Martin Marietta on the radio guidance system equipment for Titan III34Ds launched from Vandenberg AFB. KH-11 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• KH-9 no. 15 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1979-09-22 . USAF Sat Cat: 11305 . COSPAR: 1979-025A. Apogee: 258 km (160 mi). Perigee: 170 km (100 mi). Inclination: 96.40 deg. Period: 88.80 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• OPS 6675 - . Payload: SSF-D No. 3. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 11306 . COSPAR: 1979-025B. Apogee: 628 km (390 mi). Perigee: 621 km (385 mi). Inclination: 95.80 deg. Period: 97.20 min.

• KH-11 no. 3 - . Payload: KH-11 no. 3 / OPS 2581. Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-11. Decay Date: 1982-10-30 . USAF Sat Cat: 11687 . COSPAR: 1980-010A. Apogee: 498 km (309 mi). Perigee: 220 km (130 mi). Inclination: 97.00 deg. Period: 91.70 min. KH-11 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• KH-9 no. 16 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1981-03-06 . USAF Sat Cat: 11850 . COSPAR: 1980-052A. Apogee: 262 km (162 mi). Perigee: 164 km (101 mi). Inclination: 96.40 deg. Period: 88.80 min. KH-9 type satellite. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

• OPS 1292 - . Payload: SSF-C No. 6. Mass: 60 kg (132 lb). Nation: USA. Agency: CIA, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 11852 . COSPAR: 1980-052C. Apogee: 1,333 km (828 mi). Perigee: 1,331 km (827 mi). Inclination: 96.60 deg. Period: 112.30 min. ABM monitoring; may or may not have existed!!!..

• KH-11 no. 4 - . Payload: KH-11 no. 4 / OPS 3984. Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-11. Decay Date: 1984-11-23 . USAF Sat Cat: 12799 . COSPAR: 1981-085A. Apogee: 526 km (326 mi). Perigee: 244 km (151 mi). Inclination: 97.00 deg. Period: 92.30 min. KH-11 type satellite. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). .

• KH-9 no. 17 - . Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-9. Decay Date: 1982-12-05 . USAF Sat Cat: 13170 . COSPAR: 1982-041A. Apogee: 262 km (162 mi). Perigee: 177 km (109 mi). Inclination: 96.40 deg. Period: 88.90 min. KH-9 type satellite. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). .

• OPS 6553 - . Payload: SSF-D No. 4. Mass: 60 kg (132 lb). Nation: USA. Agency: CIA, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 13172 . COSPAR: 1982-041C. Apogee: 707 km (439 mi). Perigee: 701 km (435 mi). Inclination: 96.00 deg. Period: 98.90 min. Radar monitoring; may or may not have existed!!!..

• Final launch of a Titan IIID - . Nation: USA. Final launch of a Titan IIID from Vandenberg AFB (first launch on 1 5 June 1971)..

• KH-11 no. 5 - . Payload: KH-11 no. 5 / OPS 9627. Mass: 13,300 kg (29,300 lb). Nation: USA. Agency: CIA, NRO. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-11. Decay Date: 1985-08-13 . USAF Sat Cat: 13659 . COSPAR: 1982-111A. Apogee: 520 km (320 mi). Perigee: 280 km (170 mi). Inclination: 97.00 deg. Period: 92.60 min. KH-11 type satellite. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). .