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Table 5

Parameters used in the fit to a ring system model of Saturn.

Season Date range l b B r Ωud Ωcusp Ωring ΩP
[deg] [deg] [deg] [AU] [arcsec2] [arcsec2] [arcsec2] [arcsec2]

1 ........... 04 Jan.–08 Jan. 2010 286.0 62.2 6.03 9.08 218.28 2.36 80.70 237.40
2 ........... 11 Jun.–17 Jun. 2010 271.6 62.5 2.45 9.57 206.71 0.20 29.52 213.82
3 ........... 18 Jan.–22 Jan. 2011 310.3 58.2 12.56 9.19 169.41 8.27 169.44 232.72
4 ........... 29 Jun.–05 Jul. 2011 298.4 60.9 9.40 9.73 182.19 4.66 110.11 207.48

Notes. Columns are: season number; date range; position in Galactic coordinates (l,b); ring inclination angle B; planet range r; planetary solid angle unobscured by the disc, Ωud; the total unobscured ring area, Ωring; the solid angle obscured by rings, Ωcusp; and the total solid angle of the planet disc, ΩP.

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