![SOLRAD 3 & INJUN 1](/static/img/sat/117/1.jpg)
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![SOLRAD 3 & INJUN 1](/static/img/sat/117/2.jpg)
![SOLRAD 3 & INJUN 1](/static/img/sat/117/3.jpg)
Object Name | SOLRAD 3 & INJUN 1 |
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Object Full Name | - |
Norad ID | 117 |
Cospar ID | 1961-015B |
Object Type | Satellite |
Object Status | - |
Object Class | - |
End of Life | - |
The satellite Injun 1 was the first of a series of spacecraft designed and built by the University of Iowa to study the natural and artificial trapped radiation belts, auroras and airglow, and other geophysical phenomena. Injun 1 was launched simultaneously with Transit 4A and Greb 3. Transit 4A successfully separated from Injun 1, but Greb 3 did not. Injun 1 was designed to be magnetically aligned. However, due to the presence of Greb 3 (which blocked the view of the photometer), it was impossible to keep the satellite constantly oriented on the terrestrial magnetic field throughout an orbit. A single axis fluxgate magnetometer was used to monitor the orientation of the spacecraft with respect to the local magnetic field. Injun 1 had a complex spin-and-tumble motion with an ill-defined and variable period of several minutes. The satellite sent back radiation data until March 6, 1963, and is expected to be in orbit for about 900 yr.
Launch Date | 1961-06-29 |
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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: | 103.6 min |
Inclination: | 66.8° |
Apogee: | 981.0 km |
Perigee: | 876.0 km |
Longitude of Geo | - |
ECT | - |
Payload | - |
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Platform | - |
Propulsion | - |
Propulsion Type | - |
Life Time | - |
Power | - |
Budget | - |
Call Sign | - |
Beacon | - |
RCS | 0.4239 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: | - |