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| LAUNCH DATE: |
09-Aug-1975 01:48 UT
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| MISSION END: | 25-April-1982 |
| LAUNCH VEHICLE: | Thor Delta |
| LAUNCH MASS: | 278 kg |
| MISSION PHASE: |
Archive |
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The orbit of Cos-B was roughly 100 000 km with a period of 37 hours. This eccentric orbit was chosen to ensure that for most of the time the satellite was outside the Earth's radiation belts. |
Creation of the 2CG Catalogue that contained about 25 gamma-ray sources out of 30 observations made during the first three years. |
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Cos-B was ESA's first satellite dedicated to a single experiment. Its scientific mission was to study in detail the sources of extra-terrestrial gamma radiation at energies above about 30 MeV. The originally foreseen duration of the mission was two years, but in fact Cos-B functioned successfully for 6 years and 8 months. During this time an extensive survey of the Galaxy was made in the energy range 50 MeV to 5 GeV. |
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