Mutual occultations and eclipses of the Galilean satellites of Jupiter in 2002-2003: final astrometric results

Details Mutual occultations and eclipses of the Galilean satellites of Jupiter in 2002-2003: final astrometric results Mutual occultations and eclipses of the Galilean satellites of Jupiter in 2002-2003: final astrometric results

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009mnras.394.1037e&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 394, Issue 2, pp. 1037-1044.

Astronomy and Astrophysics

Astronomy

2

Eclipses, Occultations, Planets And Satellites: Individual: Galilean Satellites Of Jupiter

Scientific paper

The photometry of mutual occultations and eclipses of natural planetary satellites can be used to infer very accurate astrometric data. This can be achieved by processing the light curves of the satellites observed during international campaigns of photometric observations of these mutual events.
This work focuses on processing the complete data base of photometric observations of the mutual occultations and eclipses of the Galilean satellites made during the international campaign in 2002-2003. The final goal is to derive new accurate astrometric data.
We propose the most accurate photometric model of mutual events based on all the data available to date about the satellites, and develop the corresponding method for extracting astrometric data. This method is applied to derive astrometric data from photometric observations of mutual occultations and eclipses of the Galilean satellites.
We process the 371 light curves obtained during the international campaign of photometric observations of the Galilean satellites in 2002-2003. As compared with the theory, the rms `O-C' residuals with respect to theory is equal to 0.055 and 0.064 arcsec in right ascension and declination, respectively, for the 274 best observations. Topocentric or heliocentric angular differences for satellite pairs are obtained for 119 time instants during the time period from 2002 October 10 to 2003 July 17.

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