PROCEDURE: thm_sst_dat2angsplit HELPER function take the dat component of a structure and splits it into an array ordered in terms of theta = energy*angle->energy*theta*phi dimensions 16*64->16*4*16, phi is guaranteed to be contiguous but not necessarily ascending(some phi may be out of phase by 180 degrees) returns indices to perform this transformation $LastChangedBy: lphilpott $ $LastChangedDate: 2012-06-15 12:11:29 -0700 (Fri, 15 Jun 2012) $ $LastChangedRevision: 10569 $ $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/themis/spacecraft/particles/SST/thm_sst_dat2angsplit.pro $