Upper-atmosphere rotation rate from analysis of the orbital inclination of explorer 1 |
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| Authors: | Doreen M C Walker |
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| Institution: | Royal Aircraft Establishment, Farnborough, Hants., England |
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| Abstract: | Explorer 1, 1958α, ths first U.S. artificial satellite, was launched on 1 February 1958 and remained in orbit for 12 years. In this paper theoretical curves have been fitted to the values of inclination, giving three values of the average atmospheric rotation rate at heights of 350–400 km, and latitudes 0–20°: | Feb 1958 to mid 1960 | 1.5 rev/day | | Mid 1960 to Dec 1967 | 1.2 rev/day | | Jan 1968 to Mar 1970 | 1.3 rev/day |
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