Statistics – Computation
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jalpo..33...14w&link_type=abstract
Association of Lunar and Planetary Observers, Journal (ISSN 0039-2502), vol. 33, Jan. 1989, p. 14-22.
Statistics
Computation
Astronomical Models, Astronomical Photometry, Eclipses, Electrophotometry, Galilean Satellites, Computational Astrophysics, Least Squares Method, Light Curve, Occultation
Scientific paper
This report analyzes 30 amateur photoelectric observations of 25 separate mutual events, both eclipses and occultations, involving the Galilean satellites of Jupiter in 1985. Parabolic least-squares regression fits to the observed light curves were used to determine the amount and time of maximum light loss. The maximum light losses were in reasonable agreement with the Aksnes and Franklin (1984) predictions. Small but statistically significant differences between the observed times and the times predicted by Aksnes and Franklin and Gregorio (1983) were found for most events. As compared with Io, Europa tended to be about 29 + or - 2 seconds, and Ganymede about 26 + or - 6 seconds, ahead in its orbital motion.
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