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S73-7 Cal Balloon
 KH-9 Hexagon Credit: Manufacturer Image |
Status: Operational 1974. First Launch: 1974-04-10. Last Launch: 1974-04-10. Number: 1 .
Family: Military, Military target sat. Country: USA. Launch Vehicles: Titan, Titan IIID. Launch Sites: Vandenberg, Vandenberg SLC4E. Bibliography: 2, 279.
1974 April 10 - . 20:20 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.
- 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..
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