Source and Content

These Cassini orbit plots were produced from data taken from the Univ. of Iowa ephemeris web site ( http://www-pw.physics.uiowa.edu/~jbg/cas.html ).  The coordinate system is Saturn Solar Equatorial.  This system is Saturn-centered, the XY plane is Saturn’s equatorial plane with X in Saturn-Sun plane, positive towards the Sun, Z is the northward spin axis of Saturn, and Y = Z x X.  The plots use definitive data up to about day 160, 2006 and predicts up to the end of 2007. 

Format

The plots are available in two formats – pdf and zipped qpc.  The .qpc files were produced by the plotting program KaleidaGraph.  If you have access to that program (available for both Windows and Mac OS), the .qpc files may be useful to you.  The data are included along with the plots in those file so that you may replot the data any way you want and customize your plots. 

Rev Data

Some of the revs that contain interesting Titan flybys include Titan data from that rev and time tics on the Titan orbit near the time of encounter.  Those revs have an additional Ta, T5, etc. in their names.  For other revs the Titan data are from a generic rev just to be able to draw an appropriate circle.

Credit

These plots were produced by Nathan Bergmann-Dean and were made available on the web by Roberto Livi. 

Links

Similar plots, but not annotated and not as pretty, are available from the project to the end of primary mission at
 
https://cassini.jpl.nasa.gov/sp/tour_atlas/T18-5/PETALS/ORBITS/orbit.html .