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Analysis of the orbital inclination of Tansei 3 rocket 1977-12B

Authors
Journal
Planetary and Space Science
0032-0633
Publisher
Elsevier
Publication Date
Volume
32
Issue
9
Identifiers
DOI: 10.1016/0032-0633(84)90135-1

Abstract

Abstract The orbit of Tansei 3rocket(1977-12B) has been determined at 47 epochs between 1 October 1977 and 19 March 1979 using over 1700 observations and the RAE orbit refinement program PROP6. The rate of change of the inclination was examined to evaluate values of the atmospheric rotation rate, Λ rev day −1. Analysis yielded the value Λ = 1.1 ± 0.05 at height 315 ± 30 km, average conditions; or alternatively Λ = 1.1 ± 0.1 at height 347 ± 12 km, slight winter bias and Λ = 1.07 ± 0.1 at height 270 ± 18 km, average conditions, supplying further evidence of a decrease in rotation rates from the 1960s to the 1970s. Analysis of the inclination at 15th-order resonance yielded the lumped harmonic values 10 9 C 0,1 15 = 13.4 ± 6.2, 10 9 S 0,1 15 = 0.7 ± 13.3 for inclination 65.485°.

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