LT Thor Agena D - LT Thor Agena D - COSPAR 1969-051 17,222 bytes. 139 x 466 pixels.

Thor Agena upgraded with Long Tank Thor stage. Variant with straight tank from Delta was Thorad (Long Tank Augmented Thrust Thor Delta)

Launches: 43. Failures: 2. Success Rate: 95.35% pct. First Launch Date: 09 August 1966. Last Launch Date: 25 May 1972. Liftoff Thrust: 160,200 kgf. Total Mass: 88,731 kg. Core Diameter: 2.4 m. Total Length: 34.0 m. Flyaway Unit Cost $: 22.17 million. in 1985 unit dollars.

• Stage Number: 0. 3 x Castor 1 Gross Mass: 3,852 kg. Empty Mass: 535 kg. Thrust (vac): 29,164 kgf. Isp: 247 sec. Burn time: 27 sec. Isp(sl): 232 sec. Diameter: 0.8 m. Span: 0.8 m. Length: 5.9 m. Propellants: Solid No Engines: 1. M33-20-4

• Stage Number: 1. 1 x Delta Thor LT Gross Mass: 70,354 kg. Empty Mass: 3,715 kg. Thrust (vac): 88,380 kgf. Isp: 290 sec. Burn time: 215 sec. Isp(sl): 256 sec. Diameter: 2.4 m. Span: 2.4 m. Length: 21.4 m. Propellants: Lox/Kerosene No Engines: 1. MB-3-3

• Stage Number: 2. 1 x Agena D Gross Mass: 6,821 kg. Empty Mass: 673 kg. Thrust (vac): 7,257 kgf. Isp: 300 sec. Burn time: 265 sec. Isp(sl): 0 sec. Diameter: 1.5 m. Span: 1.5 m. Length: 7.1 m. Propellants: Nitric acid/UDMH No Engines: 1. Bell 8096

• KH-4A 1036 Spacecraft: KH-4A. Payload: KH-4A s/n 1036 / Agena D 1631. Mass: 1,500 kg.

  KH-4A. All cameras operated satisfactorily.

• SRV 716 Spacecraft: KH-4A. Payload: SRV 1036-2.

• SRV 715 Spacecraft: KH-4A. Payload: SRV 1036-1.

• KH-4A 1037 Spacecraft: KH-4A. Payload: KH-4A s/n 1037 / Agena D 1632. Mass: 1,500 kg.

  KH-4A. Second pan geometry mission. Higher than normal base plus fog encountered on both main camera records.

• SRV 728 Spacecraft: KH-4A. Payload: SRV 1037-2.

• SRV 727 Spacecraft: KH-4A. Payload: SRV 1037-1.

• KH-4A 1041 Spacecraft: KH-4A. Payload: KH-4A s/n 1041 / Agena D 1634. Mass: 2,000 kg.

  KH-4A. Due to the failure of the booster cut-off switch, the satellite went into a highly eccentric orbit. Significant image degradation.

• SRV 731 Spacecraft: KH-4A. Payload: SRV 1041-1. Mass: 60 kg.

  Radar monitoring. Due to the failure of the booster cut-off switch, the satellite went into a highly eccentric orbit.

• OPS 1967 Spacecraft: SSF. Payload: EHH B7.

• SRV 732 Spacecraft: KH-4A. Payload: SRV 1041-2.

• KH-4A 1042 Spacecraft: KH-4A. Payload: KH-4A s/n 1042 / Agena D 1633. Mass: 2,000 kg.

  KH-4A. Small out-of-focus area in forward camera of 1042-1.

• SRV 725 Spacecraft: KH-4A. Payload: SRV 1042-1. Mass: 60 kg.

  Radar monitoring.

• SRV 726 Spacecraft: KH-4A. Payload: SRV 1042-2.

• OPS 1873 Spacecraft: SSF. Payload: EHH B8.

• KH-4A 1043 Spacecraft: KH-4A. Payload: KH-4A s/n 1043 / Agena D 1637. Mass: 2,000 kg.

  KH-4A. Forward camera film came out of the rails on pass 230D. Film degraded past this point.

• SRV 735 Spacecraft: KH-4A. Payload: SRV 1043-1.

• SRV 736 Spacecraft: KH-4A. Payload: SRV 1043-2.

• KH-4B 1101 Spacecraft: KH-4B. Payload: KH-4B s/n 1101 / Agena D 1641. Mass: 2,000 kg.

  KH-4B. First mission of the KH-4B series. Best film to date.

• SRV 803 Spacecraft: KH-4B. Payload: SRV 1101-1.

• SRV 804 Spacecraft: KH-4B. Payload: SRV 1101-2.

• SRV 733 Spacecraft: KH-4A. Payload: SRV 1044-1. Mass: 60 kg.

  Radar monitoring.

• KH-4A 1044 Spacecraft: KH-4A. Payload: KH-4A s/n 1044. Mass: 2,000 kg.

  KH-4A. All cameras operated fine.

• SRV 734 Spacecraft: KH-4A. Payload: SRV 1044-2.

• OPS 1587 Spacecraft: SSF. Payload: EHH B9.

• KH-4B 1102 Spacecraft: KH-4B. Payload: KH-4B s/n 1102 / Agena D 1642. Mass: 2,000 kg.

  KH-4B. Noticeable image smear for forward camera, but best imagery to date.

• SRV 805 Spacecraft: KH-4B. Payload: SRV 1102-1.

• SRV 806 Spacecraft: KH-4B. Payload: SRV 1102-2.

• KH-4A 1045 Spacecraft: KH-4A. Payload: KH-4A s/n 1045 / Agena D 1640. Mass: 2,000 kg.

  KH-4A. All cameras operated satisfactorily.

• SRV 741 Spacecraft: KH-4A. Payload: SRV 1045-1. Mass: 60 kg.

  Radar monitoring.

• OPS 6236 Spacecraft: SSF. Payload: EHH B10.

• SRV 742 Spacecraft: KH-4A. Payload: SRV 1045-2.

• KH-4A 1046 Spacecraft: KH-4A. Payload: KH-4A s/n 1046 / Agena D 1638. Mass: 2,000 kg.

  KH-4A. Image quality good for 1046-1 and fair for 1046-2.

• SRV 747 Spacecraft: KH-4A. Payload: SRV 1046-1. Mass: 60 kg.

  Radar monitoring.

• SRV 748 Spacecraft: KH-4A. Payload: SRV 1046-2.

• OPS 7076 Spacecraft: SSF. Payload: EHH B11.

• KH-4B 1103 Spacecraft: KH-4B. Payload: KH-4B s/n 1103. Mass: 2,000 kg.

  KH-4B. Out-of-focus imagery is present on both main camera records.

• SRV 808 Spacecraft: KH-4B. Payload: SRV 1103-2.

• SRV 807 Spacecraft: KH-4B. Payload: SRV 1103-1.

• EGRS 10 Spacecraft: Secor. Payload: Secor 10.

• Nimbus B Spacecraft: Nimbus. Mass: 570 kg.

  Launched with Secor 10.

• SRV 745 Spacecraft: KH-4A. Payload: SRV 1047-1. Mass: 60 kg.

  Radar monitoring.

• KH-4A 1047 Spacecraft: KH-4A. Payload: KH-4A s/n 1047 / Agena D 1645. Mass: 2,000 kg.

  KH-4A. Out-of-focus imagery is present on both main camera records.

• OPS 5259 Spacecraft: SSF. Payload: EHH B12.

• SRV 746 Spacecraft: KH-4A. Payload: SRV 1047-2.

• KH-4B 1104 Spacecraft: KH-4B. Payload: KH-4B s/n 1104 / Agena D 1644. Mass: 3,000 kg.

  KH-4B. Best imagery to date on any KH-4 systems. Bicolor and color infrared experiments were conducted on this mission.

• SRV 809 Spacecraft: KH-4B. Payload: SRV 1104-1.

• SRV 810 Spacecraft: KH-4B. Payload: SRV 1104-2.

• KH-4A 1048 Spacecraft: KH-4A. Payload: KH-4A s/n 1048 / Agena D 1647. Mass: 2,000 kg.

  KH-4A. Film in the forward camera separated and camera failed on mission 1048-2, also the stellar/index camera unit failed.

• SRV 749 Spacecraft: KH-4A. Payload: SRV 1048-1. Mass: 60 kg.

  Radar monitoring.

• SRV 750 Spacecraft: KH-4A. Payload: SRV 1048-2.

• OPS 8595 Spacecraft: SSF. Payload: EHH B13.

• OPS 0964 Spacecraft: Ferret. Payload: Ferret 13 / Agena D 2734. Mass: 1,500 kg.

• KH-4B 1105 Spacecraft: KH-4B. Payload: KH-4B s/n 1105 / Agena D 1646. Mass: 2,000 kg.

  KH-4B. Image quality is variable and displays areas of soft focus and image smear.

• SRV 811 Spacecraft: KH-4B. Payload: SRV 1105-2.

• SRV 810 Spacecraft: KH-4B. Payload: SRV 1105-1.

• SRV 751 Spacecraft: KH-4A. Payload: SRV 1049-1. Mass: 60 kg.

  ABM monitoring.

• KH-4A 1049 Spacecraft: KH-4A. Payload: KH-4A s/n 1049 / Agena D 1648. Mass: 2,000 kg.

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  KH-4A. Degraded film

• OPS 7684 Spacecraft: SSF. Payload: EHH C1.

• SRV 752 Spacecraft: KH-4A. Payload: SRV 1049-2.

• KH-4B 1106 Spacecraft: KH-4B. Payload: KH-4B s/n 1106 / Agena D 1650. Mass: 2,000 kg.

  KH-4B. The best image quality to date.

• SRV 801R Spacecraft: KH-4B. Payload: SRV 1106-1. Mass: 60 kg.

  ABM monitoring.

• OPS 2644 Spacecraft: SSF. Payload: EHH C2.

• SRV 802R Spacecraft: KH-4B. Payload: SRV 1106-2.

• KH-4A 1050 Spacecraft: KH-4A. Payload: KH-4A s/n 1050 / Agena D 1651. Mass: 2,000 kg.

  KH-4A. Due to abnormal rotational rates after revolution 22, the mission was terminated after a total of three days collecting photography.

• SRV 737 Spacecraft: KH-4A. Payload: SRV 1050-1. Mass: 60 kg.

  Radar monitoring.

• SRV 738 Spacecraft: KH-4A. Payload: SRV 1050-2.

• OPS 2285 Spacecraft: SSF. Payload: EHH B14.

• SECOR 13 Spacecraft: SECOR. Payload: EGRS 13. Mass: 20 kg.

  Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• Nimbus 3 Spacecraft: Nimbus. Payload: Nimbus B2. Mass: 575 kg.

  Primary experiments consisted of a satellite infrared spectrometer (SIRS) for determining the vertical temperature profiles of the atmosphere, an infrared interferometer spectrometer (IRIS) for measuring the emission spectra of the earth-atmosphere system, both high- and medium-resolution infrared radiometers (HRIR and MRIR) for yielding information on the distribution and intensity of infrared radiation emitted and reflected by the earth and its atmosphere, monitor of ultraviolet solar energy (MUSE) for detecting solar UV radiation, image dissector camera system for providing daytime cloudcover pictures in both real-time mode using the real time transmission system and tape recorder mode using the high data rate storage system, radioisotope thermoelectric generator (RTG) SNAP-19 to assess the operational capability of radioisotope power for space applications, and an interrogation, recording and location system (IRLS) experiment designed to locate, interrogate, record, and retransmit meteorological and geophysical data from remote collection stations. Nimbus-3 was successful and performed normally until July 22, 1969, when the IRIS experiment failed. The HRIR and the SIRS experiments were terminated on January 25, 1970, and June 21, 1970, respectively. The remaining experiments continued operation until September 25, 1970, when the rear horizon scanner failed. Without this horizon scanner, it was impossible to maintain proper spacecraft attitude, thus making most experimental observations useless. All spacecraft operations were terminated on January 22, 1972.

• SRV 739 Spacecraft: KH-4A. Payload: SRV 1051-1. Mass: 60 kg.

  Radar monitoring.

• KH-4A 1051 Spacecraft: KH-4A. Payload: KH-4A s/n 1051 / Agena D 1649. Mass: 2,000 kg.

  KH-4A. Imagery of both pan camera records is soft and lacks crispness and edge sharpness.

• OPS 1721 Spacecraft: SSF. Payload: EHH B15.

• SRV 740 Spacecraft: KH-4A. Payload: SRV 1051-2.

• OGO 6 Spacecraft: OGO. Payload: OGO F. Mass: 634 kg.

  OGO 6 was a large observatory instrumented with 26 experiments designed to study the various interrelationships between, and latitudinal distributions of, high-altitude atmospheric parameters during a period of increased solar activity. On June 22, 1969, the spacecraft potential dropped significantly during sunlight operation and remained so during subsequent sunlight operation. This unexplained shift affected seven experiments which made measurements dependent upon knowledge of the spacecraft plasma sheath. During October 1969, a string of solar cells failed, but the only effect of the decreased power was to cause two experiments to change their mode of operation. Also during October 1969, a combination of manual and automatic attitude control was initiated, which extended the control gas lifetime of the attitude control system. In August 1970, tape recorder (TR) no. 1 operation degraded, so all recorded data were subsequently taken with TR no. 2. By September 1970, power and equipment degradation left 14 experiments operating normally, 3 partially, and 9 off. From October 14, 1970, TR no. 2 was used only on Wednesdays (world days) to conserve power and extend TR operation. In June 1971, the number of 'on' experiments decreased from 13 to 7, and on June 28, 1971, the spacecraft was placed in a spin-stabilized mode about the yaw (Z) axis and turned off due to difficulties with spacecraft power. OGO 6 was turned on again from October 10, 1971, through March 1972, for operation of experiment 25 by The Radio Research Laboratory, Japan.

• KH-4B 1107 Spacecraft: KH-4B. Payload: KH-4B s/n 1107 / Agena D 1652. Mass: 2,000 kg.

  KH-4B. Forward camera failed on pass 1 and remained inoperative throughout the rest of the mission.

• SRV 814 Spacecraft: KH-4B. Payload: SRV 1107-2.

• SRV 813 Spacecraft: KH-4B. Payload: SRV 1107-1.

• OPS 8285 Spacecraft: Ferret. Payload: Ferret 14 / Agena D 2735. Mass: 1,500 kg.

• SRV 743R Spacecraft: KH-4A. Payload: SRV 1052-1. Mass: 60 kg.

  Radar monitoring. Last of the KH-4A missions.

• KH-4A 1052 Spacecraft: KH-4A. Payload: KH-4A s/n 1052 / Agena D 1653. Mass: 2,000 kg.

  KH-4A. Last of the KH-4A missions, all camera systems operated satisfactorily.

• OPS 4710 Spacecraft: SSF. Payload: EHH B16.

• SRV 744R Spacecraft: KH-4A. Payload: SRV 1052-2.

• Timation 2 Spacecraft: Timation.

  Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• OPS 1807 Spacecraft: SSF. Payload: EHH B17. Mass: 60 kg.

• Surcal Spacecraft: Surcal. Payload: NRL PL176.

  Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• Surcal Spacecraft: Surcal. Payload: NRL PL161.

  Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• Surcal Spacecraft: Surcal. Payload: NRL PL162.

  Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• Surcal Spacecraft: Surcal. Payload: NRL PL163.

  Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• Surcal Spacecraft: NRL ELINT. Payload: NRL PL164. Mass: 40 kg.

  Identified by McDowell as probable NRL ELINT satellite.

• Tempsat 2 Spacecraft: Tempsat.

  Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• SOICAL Cylinder Spacecraft: SOICAL. Payload: S69-4 Cylinder.

  Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• SOICAL Cone Spacecraft: SOICAL. Payload: S69-4 Cone.

  Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• KH-4B 1108 Spacecraft: KH-4B. Payload: KH-4B s/n 1108 / Agena D 1655. Mass: 2,000 kg.

  KH-4B. Cameras operated satisfactorily and the mission carried 811 ft of aerial color film added to the end of the film supply.

• SRV 818 Spacecraft: KH-4B. Payload: SRV 1108-2.

• SRV 817 Spacecraft: KH-4B. Payload: SRV 1108-1.

• SERT 2 Spacecraft: SERT. Mass: 1,404 kg.

  Space Electric Rocket Test; electric ion engine tests. Two engines, operated until 1980

• SRV 819 Spacecraft: KH-4B. Payload: SRV 1109-1. Mass: 60 kg.

  Radar monitoring; may or may not have existed!!!

• KH-4B 1109 Spacecraft: KH-4B. Payload: KH-4B s/n 1109 / Agena D 1657. Mass: 2,000 kg.

  KH-4B. Cameras operated satisfactorily but the overall image quality of both the forward and aft records is variable.

• SRV 820 Spacecraft: KH-4B. Payload: SRV 1109-2.

• OPS 3402 Spacecraft: SSF. Payload: EHH B18.

• Nimbus 4 Spacecraft: Nimbus. Payload: Nimbus D. Mass: 620 kg.

  Environmental research. Primary experiments consisted of an image dissector camera system for providing daytime cloudcover pictures both in real-time and recorded modes, temperature-humidity infrared radiometer (THIR) for measuring daytime and nighttime surface and cloudtop temperatures as well as the water vapor content of the upper atmosphere, infrared interferometer spectrometer (IRIS) for measuring the emission spectra of the earth/atmosphere system, satellite infrared spectrometer (SIRS) for determining the vertical profiles of temperature and water vapor in the atmosphere, a monitor of ultraviolet solar energy (MUSE) for detecting solar UV radiation, a backscatter ultraviolet (BUV) detector for monitoring the vertical distribution and total amount of atmospheric ozone on a global scale, a filter wedge spectrometer (FWS) for accurate measurement of IR radiance as a function of wavelength from the earth/atmosphere system, a selective chopper radiometer (SCR) for determining the temperatures of six successive 10-km layers in the atmosphere from absorption measurements in the 15-micrometer CO2 band, and an interrogation, recording, and location system (IRLS) for locating, interrogating, recording, and retransmitting meteorological and geophysical data from remote collection stations. The spacecraft performed well until April 14, 1971, when attitude problems started. The experiments then operated on a limited time basis until September 30, 1980.

• TOPO 1 Spacecraft: TOPO. Payload: Topo A. Mass: 18 kg.

  Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• KH-4B 1110 Spacecraft: KH-4B. Payload: KH-4B s/n 1110 / Agena D 1656. Mass: 2,000 kg.

  KH-4B. The overall image quality is less than that provided by recent missions and 2,000 feet of S0-349

• OPS 8520 Spacecraft: SSF. Payload: EHH B19. Mass: 60 kg.

  Radar monitoring; may or may not have existed!!!.

• SRV 822 Spacecraft: KH-4B. Payload: SRV 1110-2.

• SRV 821 Spacecraft: KH-4B. Payload: SRV 1110-1.

• KH-4B 1111 Spacecraft: KH-4B. Payload: KH-4B s/n 1111 / Agena D 1654. Mass: 2,000 kg.

  KH-4B. The overall image quality is good.

• SRV 823 Spacecraft: KH-4B. Payload: SRV 1111-1.

• SRV 824 Spacecraft: KH-4B. Payload: SRV 1111-2.

• OPS 8329 Spacecraft: Ferret. Payload: Ferret 15. Mass: 1,500 kg.

• KH-4B 1112 Spacecraft: KH-4B. Payload: KH-4B s/n 1112 / Agena D 1658. Mass: 2,000 kg.

  KH-4B. The forward camera failed on pass 104 and remained inoperative throughout the rest of the mission.

• SRV 827 Spacecraft: KH-4B. Payload: SRV 1112-1. Mass: 60 kg.

  Radar monitoring.

• SRV 828 Spacecraft: KH-4B. Payload: SRV 1112-2.

• OPS 6829 Spacecraft: SSF. Payload: EHH B20.

• SRV 826 Spacecraft: KH-4B. Payload: SRV 1113-2.

• KH-4B 1113 Spacecraft: KH-4B. Payload: KH-4B s/n 1113. Mass: 2,000 kg.

  KH-4B. Mission failed.

• SRV 825 Spacecraft: KH-4B. Payload: SRV 1113-1.

• KH-4B 1114 Spacecraft: KH-4B. Payload: KH-4B s/n 1114 / Agena D 1660. Mass: 2,000 kg.

  KH-4B. The overall image quality is good and comparable to the best of past missions. On-board program failed

• SRV 830 Spacecraft: KH-4B. Payload: SRV 1114-2.

• SRV 829 Spacecraft: KH-4B. Payload: SRV 1114-1.

• OPS 8373 Spacecraft: Ferret. Payload: Ferret 16 / Agena D 2737?. Mass: 1,500 kg.

• SRV 831 Spacecraft: KH-4B. Payload: SRV 1115-1. Mass: 60 kg.

  Radar monitoring.

• KH-4B 1115 Spacecraft: KH-4B. Payload: KH-4B s/n 1115 / Agena D 1662. Mass: 2,000 kg.

  KH-4B. Overall image quality is good.

• OPS 7681 Spacecraft: SSF. Payload: EHH B21.

• SRV 832 Spacecraft: KH-4B. Payload: SRV 1115-2.

• ASTEX Spacecraft: ASTEX. Payload: P71-2 / Agena D. Mass: 1,500 kg.

  Space Test Program; technology experiments. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• OPS 7898 P/L 1 Spacecraft: NOSS. Payload: NRL PL171. Mass: 700 kg.

  Ocean surveillance; White Cloud (?) type spacecraft; test flight. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• OPS 7898 P/L 4 Spacecraft: NOSS. Payload: NRL PL174.

  Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• OPS 7898 P/L 2 Spacecraft: NOSS. Payload: NRL PL172.

  Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• OPS 7898 P/L 3 Spacecraft: NOSS. Payload: NRL PL173.

  Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• KH-4B 1116 Spacecraft: KH-4B. Payload: KH-4B s/n 1116 / Agena D 1661. Mass: 2,000 kg.

  KH-4B. Very successful mission and image quality was good.

• SRV 834 Spacecraft: KH-4B. Payload: SRV 1116-2.

• SRV 833 Spacecraft: KH-4B. Payload: SRV 1116-1.

• KH-4B 1117 Spacecraft: KH-4B. Payload: KH-4B s/n 1117 / Agena D 1663. Mass: 2,000 kg.

  KH-4B. Last KH-4B mission. Very successful mission, image quality was good. Final CORONA mission.

• SRV 816R Spacecraft: KH-4B. Payload: SRV 1117-2.

• SRV 815R Spacecraft: KH-4B. Payload: SRV 1117-1.

• 42 - Isakowitz, Steven J,, International Reference to Space Launch Systems Second Edition, AIAA, Washington DC, 1991.