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Calsphere
Calsphere 1 Credit: Manufacturer Image |
American military target satellite. Radar calibration objects (but also cover for other classified subsatellites). Radar calibration satellite for Naval Research Laboratory (NRL), USA. Launched 1962-1967.
AKA: Dragsphere. Status: Operational 1962. First Launch: 1962-12-13. Last Launch: 1971-02-17. Number: 12 . Gross mass: 1.00 kg (2.20 lb).
More at: Calsphere.
Family:
Medium earth orbit,
Military,
Military target sat,
Surveillance.
Country:
USA.
Launch Vehicles:
Atlas,
Thor,
Delta,
Thor Ablestar,
Atlas F,
Thor Agena D,
Thor SLV-2 Agena D,
Thor Burner 2,
Atlas Burner 2,
Thor Burner.
Launch Sites:
Vandenberg,
Vandenberg SLC2E,
Vandenberg SLC10W,
Vandenberg SLC2W,
Vandenberg SLC3E.
Agency:
USAF,
U.S. Navy.
Bibliography:
2,
279,
6.
Photo Gallery
| Calsphere 1 Credit: Manufacturer Image |
| Calsphere 4 Credit: Manufacturer Image |
1962 December 13 - .
04:07 GMT - .
Launch Site:
Vandenberg.
Launch Complex:
Vandenberg SLC2E.
LV Family:
Thor.
Launch Vehicle:
Thor Agena D.
- Calsphere 1A - .
Mass: 23 kg (50 lb). Nation: USA.
Agency: USAF,
USN.
Class: Surveillance.
Type: Naval signals intelligence satellite. Spacecraft: Calsphere.
Decay Date: 1967-02-05 . USAF Sat Cat: 513 . COSPAR: 1962-B-Tau-5. Apogee: 2,069 km (1,285 mi). Perigee: 228 km (141 mi). Inclination: 70.30 deg. Period: 108.40 min. Surveillance calibration..
1964 October 6 - .
17:04 GMT - .
Launch Site:
Vandenberg.
Launch Complex:
Vandenberg SLC2W.
LV Family:
Thor.
Launch Vehicle:
Thor Ablestar.
- Calsphere 2 - .
Payload: Dragsphere 2. Mass: 10 kg (22 lb). Nation: USA.
Agency: USN.
Class: Surveillance.
Type: Radar calibration target. Spacecraft: Calsphere.
USAF Sat Cat: 902 . COSPAR: 1964-063E. Apogee: 1,078 km (669 mi). Perigee: 1,049 km (651 mi). Inclination: 90.20 deg. Period: 106.50 min. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
- Calsphere 1 - .
Payload: Dragsphere 1. Mass: 1.00 kg (2.20 lb). Nation: USA.
Agency: USN.
Class: Surveillance.
Type: Radar calibration target. Spacecraft: Calsphere.
USAF Sat Cat: 900 . COSPAR: 1964-063C. Apogee: 1,034 km (642 mi). Perigee: 997 km (619 mi). Inclination: 90.10 deg. Period: 105.50 min. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
1965 August 13 - .
22:11 GMT - .
Launch Site:
Vandenberg.
Launch Complex:
Vandenberg SLC2E.
LV Family:
Thor.
Launch Vehicle:
Thor Ablestar.
- Calsphere 4A - .
Payload: NRL PL 158?. Mass: 2.00 kg (4.40 lb). Nation: USA.
Agency: USN.
Class: Surveillance.
Type: Radar calibration target. Spacecraft: Calsphere.
USAF Sat Cat: 1520 . COSPAR: 1965-065H. Apogee: 1,179 km (732 mi). Perigee: 1,077 km (669 mi). Inclination: 90.10 deg. Period: 107.90 min. Surveillance Calibration; white 14 inch dia. sphere. .
1967 May 31 - .
09:30 GMT - .
Launch Site:
Vandenberg.
Launch Complex:
Vandenberg SLC2W.
LV Family:
Thor.
Launch Vehicle:
Thor SLV-2 Agena D.
- Calsphere 4 - .
Payload: Agena D 2704 / OPS 5712. Nation: USA.
Agency: NRL.
Class: Surveillance.
Type: Radar calibration target. Spacecraft: Calsphere.
USAF Sat Cat: 2826 . COSPAR: 1967-053A. Apogee: 834 km (518 mi). Perigee: 815 km (506 mi). Inclination: 69.90 deg. Period: 101.40 min. The last Air Force Thor/Agena D, SLV-2 #443 and SS-01B #2704, was launched from Vandenberg. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
- Calsphere 3 - .
Payload: NRL PL159. Mass: 38 kg (83 lb). Nation: USA.
Agency: NRL.
Class: Surveillance.
Type: Radar calibration target. Spacecraft: Calsphere.
USAF Sat Cat: 2872 . COSPAR: 1967-053F. Apogee: 906 km (562 mi). Perigee: 900 km (550 mi). Inclination: 70.00 deg. Period: 103.10 min. Surveillance Calibration. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
1968 August 16 - .
20:57 GMT - .
Launch Site:
Vandenberg.
Launch Complex:
Vandenberg SLC3E.
LV Family:
Atlas.
Launch Vehicle:
Atlas Burner 2.
FAILURE: Failure.
- AVL-802 Rigid Sphere - .
Payload: AVL-802. Nation: USA.
Agency: USAF AFSC.
Spacecraft: Calsphere.
An Atlas/Burner II (SLV-3, #7004), the first Atlas to be launched with a Burner II upper stage, was launched from Space Launch Complex 3 East (SLC-3E) at Vandenberg but failed to place its payload in orbit due to a malfunction of the nose-fairing heat shield separation system.
1971 February 17 - .
03:52 GMT - .
Launch Site:
Vandenberg.
Launch Complex:
Vandenberg SLC10W.
LV Family:
Thor.
Launch Vehicle:
Thor Burner 2.
- Calsphere 3A - .
Payload: NRL PL170A / OPS 5268. Mass: 1.00 kg (2.20 lb). Nation: USA.
Agency: NRL.
Class: Surveillance.
Type: Radar calibration target. Spacecraft: Calsphere.
Decay Date: 1989-10-17 . USAF Sat Cat: 4957 . COSPAR: 1971-012C. Apogee: 531 km (329 mi). Perigee: 509 km (316 mi). Inclination: 98.40 deg. Period: 95.00 min. Radar calibarion sphere. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
- Calsphere 4 - .
Payload: NRL PL170B / OPS 5268. Mass: 1.00 kg (2.20 lb). Nation: USA.
Agency: NRL.
Class: Surveillance.
Type: Radar calibration target. Spacecraft: Calsphere.
Decay Date: 1989-09-20 . USAF Sat Cat: 4958 . COSPAR: 1971-012D. Apogee: 502 km (311 mi). Perigee: 486 km (301 mi). Inclination: 98.40 deg. Period: 94.50 min. Radar calibarion sphere. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
- Calsphere 5 - .
Payload: NRL PL170C / OPS 5268. Mass: 1.00 kg (2.20 lb). Nation: USA.
Agency: NRL.
Class: Surveillance.
Type: Radar calibration target. Spacecraft: Calsphere.
Decay Date: 1990-01-07 . USAF Sat Cat: 4963 . COSPAR: 1971-012E. Apogee: 360 km (220 mi). Perigee: 340 km (210 mi). Inclination: 98.20 deg. Period: 91.50 min. Radar calibarion sphere. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
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