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Object Name | RELAY 1 (A-15) |
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Object Full Name | - |
Norad ID | 503 |
Cospar ID | 1962-068A |
Object Type | Satellite |
Object Status | - |
Object Class | - |
End of Life | - |
Relay 1 was principally a communications satellite. Included in its payload were radiation experiments designed to map the earth's radiation belts. The spin-stabilized spacecraft had an initial spin rate of 167.3 rpm and an initial spin axis orientation with a declination of -68.3 deg and a right ascension of -56 deg. Shortly after launch, two basic problems evolved. One was the satellite's response to spurious commands, and the other was the leakage of a high-power regulator. This leakage caused the first 2 weeks of satellite operation to be useless. After this period, satellite operation returned to normal. The satellite carried one transmitter for tracking and one for telemetry. The telemetry system was PCM at 1152 bps. Each 128 words per telemetry frame (of 1 s duration) used 113 words for the particle experiment. The leakage problem caused the spacecraft to revert to a low voltage state early in 1965. Sporadic transmission occurred until February 10, 1965, after which no usable scientific data were obtained.
Launch Date | 1962-12-13 |
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Decay Date | - |
Launch Vehicle | - |
Launch Site | Air Force Eastern Test Range, Florida, USA |
Launch Provider | - |
Launch Provider Country | - |
Launch Mass | - |
Dry Mass | - |
User | - |
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Mission | - |
Mission Detail | - |
Country of Registry | - |
Programme | - |
Operator | - |
Country of Operator | United States |
Contractor | - |
Country of Contractor | - |
Payload Contractor | - |
Payload Contractor Country | - |
Orbit Status | Earth Orbit |
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Orbit | - |
Orbit Type | - |
Period: | 185.1 min |
Inclination: | 47.5° |
Apogee: | 7437.0 km |
Perigee: | 1320.0 km |
Longitude of Geo | - |
ECT | - |
Payload | - |
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Platform | - |
Propulsion | - |
Propulsion Type | - |
Life Time | - |
Power | - |
Budget | - |
Call Sign | - |
Beacon | - |
RCS | 0.9221 m² |
References | - |
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Angular Momentum: | - |
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Eccentricity: | - |
Inclination: | - |
RAAN: | - |
Argument of Perigee: | - |
True Anomaly: | - |
Period: | - |
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Semi-Major Axis: | - |
Perigee: | - |
Apogee: | - |
Mean Motion: | - |
Mean Anomaly: | - |
Latitude: | - |
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Longitude: | - |
Altitude: | - |
Speed: | - |
Azimuth: | - |
Elevation: | - |
Range: | - |