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James A. Van Allen lab journal, September 1959-January 1961
Page 28
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10/29/59 Received Second Ephemeris Book on Explorer VII (1959 Iota) October 13 - October 20 "Interim Definitive". Epoch 1959 October 16 -- 15 hours 40 minutes UT anomalistic period: 101.33 minutes rate of change of period: -0.00046 minutes/day inclination: +50.33 degrees right ascension ascendant node: +135.75 degrees motion ascension node: -4.21 degrees/day argument of perigee: +64.66 degrees motion of perigee: +3.42 degrees/day mean anomaly?]: +228.10 degrees eccentricity: +0.037748 semi-major axis: +1.128813 (P sub E) perigee altitude miles above equatorial radius: +341.65 apogee in miles: +679.41
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10/29/59 Received Second Ephemeris Book on Explorer VII (1959 Iota) October 13 - October 20 "Interim Definitive". Epoch 1959 October 16 -- 15 hours 40 minutes UT anomalistic period: 101.33 minutes rate of change of period: -0.00046 minutes/day inclination: +50.33 degrees right ascension ascendant node: +135.75 degrees motion ascension node: -4.21 degrees/day argument of perigee: +64.66 degrees motion of perigee: +3.42 degrees/day mean anomaly?]: +228.10 degrees eccentricity: +0.037748 semi-major axis: +1.128813 (P sub E) perigee altitude miles above equatorial radius: +341.65 apogee in miles: +679.41
Van Allen Papers
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