Name: spinfit Purpose: performs a spinfit on B or E field data, results should be equivalent to FGS or EFS datatypes Calling Sqeuence: spinfit,arr_in_t,arr_in_data,arr_in_sunpulse_t,arr_in_sunpulse_data, $ A,B,C, avg_axis, median_axis,Sigma,Npoints,sun_data, $ min_points=min_points,alpha=alpha,beta=beta, $ plane_dim=plane_dim,axis_dim=axis_dim,phase_mask_starts=phase_mask_starts, $ phase_mask_ends=phase_mask_ends,sun2sensor=sun2sensor Input: arr_in_t = time array for the data arr_in_data = the data to be spin fit arr_in_sunpulse_t = time array for sunpulse data arr_in_sunpulse_data = sunpulse data Output: A,B,C = fit parameters for spinfit avg_axis = the average over the spin_axis direction median_axis = the median over the spin_axis direction sigma = sigma for each spin period npoints = number of points in fit for each spin period sun_data = midpoint times of spitfit data keywords: plane_dim = Tells program which dimension to treat as the plane. 0=x, 1=y, 2=z. Default 0. axis_dim = Tells program which dimension contains axis to average over. Default 0. Will not create a tplot variable unless used with /spinaxis. min_points = Minimum number of points to fit. Default = 5. alpha = A parameter for finding fits. Points outside of sigma*(alpha + beta*i) will be thrown out. Default 1.4. beta = A parameter for finding fits. See above. Default = 0.4 phase_mask_starts = Time to start masking data. Default = 0 phase_mask_ends = Time to stop masking data. Default = -1 sun2sensor = Tells how much to rotate data to align with sun sensor. Example: thm_spinfit,'th?_fg?',/sigma 20-sep-2010, changed sign of sun2sensor to insure agressment between spinfit EFF and on-board EFS spinfit data, and between spinfit FGL and on-board FGS spinfit data. Written by Katherine Ramer $LastChangedBy: $ $LastChangedDate: $ $LastChangedRevision: $ $URL: $