PROCEDURE: thm_esa_bgnd_remove PURPOSE: Background removal code from Vassilis This abstracts the code as the same algorithm is used in many of the get_th?_pexx routines INPUT: dat: The dat structure from the parent routine gf: The geometric factor array from the parent routine eff: The efficiency array from the parent routine nenergy: The number of energy bins for the data being calibrated nbins: The number of angle bins for the data being calibrated theta: angles in theta for the angle bins of the data being calibrated OUTPUTS: Modifies the dat structure that was provided to it. KEYWORDS: /bdnd_remove: Turn on ESA background removal. bgnd_type(Default 'anode'): Set to string naming background removal type: 'angle','omni', or 'anode'. bgnd_npoints(Default = 3): Set to the number of lowest values points to average over when determining background. bgnd_scale(Default=1): Set to a scaling factor that the background will be multiplied by before it is subtracted $LastChangedBy: aaflores1 $ $LastChangedDate: 2014-01-24 15:20:50 -0800 (Fri, 24 Jan 2014) $ $LastChangedRevision: 14010 $ $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/themis/spacecraft/particles/ESA/packet/thm_esa_bgnd_remove.pro $