🚀 go-pugleaf

There are two things I'm searching for, primarily on the net.  I wondered
if anyone on physhare could help.
        The first is data about the orbits of planets.  I am attempting
to verify Kepler's 2nd Law through using actual orbital data.  Is this
available on the net, in a book, or in software?  I would like to
actually be able to map out the orbit on a piece of paper, determine
positions near the perhelion and aphelion which represent equal units of
time for the orbit, cut them out, then compare areas. Mars would be best
(it's the most eccentric), but any orbit ought to do.
        The second thing I would like to obtain are Landsat maps, again
in either book, net, or software form.  Thanks for your help.  <<Joe>>

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             Joseph F. McLaughlin, Physics
   Brentwood High School,  Brentwood (Pittsburgh), PA
johnmcl+@pitt.edu (Pitt got it wrong- it's Joe, not John!)
           (formerly jxm39@psuvm.psu.edu)