PROCEDURE: swe_3d_strahl_dir PURPOSE: Determines the direction in SWEA coordinates of the strahl. AUTHOR: David L. Mitchell CALLING SEQUENCE: swe_3d_strahl_dir INPUTS: KEYWORDS: SMO: Set smoothing in energy and angle. Since there are only six theta bins, smoothing in that dimension is not recommended. smo = [n_energy, n_phi, n_theta] ; default = [5,3,1] ENERGY: Energy at which to calculate the symmetry direction. Should be > 100 eV. Using the SMO keyword also helps. Default = 130. POWER: Weighting function is proportional to eflux^power. Higher powers emphasize the peak of the distribution; lower powers give more weight to surrounding cells. Default = 2. PANS: Named variable to hold TPLOT variable names created. RESULT: Named variable to hold the result. ARCHIVE: Use archive data instead of survey data. OUTPUTS: $LastChangedBy: dmitchell $ $LastChangedDate: 2014-10-31 14:15:03 -0700 (Fri, 31 Oct 2014) $ $LastChangedRevision: 16106 $ $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/maven/swea/swe_3d_strahl_dir.pro $