As Skeeve pointed out, it would be helpful if you could display more of your code.  When I turn on warnings and strict, the following things haven't been defined (at least, within the code fragment you showed):

• %options
• $planets
• @data

You might also consider trying it on a smaller subset of data first, just to narrow the problem.

Finally, perhaps you might want to try not wrapping lines, to make the code a little easier to examine (though I admit this is my preference, not everybody's).