;+ ;FUNCTION: v_2d_new((dat,ENERGY=en,ERANGE=er,EBINS=ebins,ANGLE=an,ARANGE=ar,BINS=bins) ;INPUT: ; dat: structure, 2d data structure filled by get_eesa_surv, get_eesa_burst, etc. ;KEYWORDS ; ENERGY: fltarr(2), optional, min,max energy range for integration ; ERANGE: fltarr(2), optional, min,max energy bin numbers for integration ; EBINS: bytarr(na), optional, energy bins array for integration ; 0,1=exclude,include, ; na = dat.nenergy ; ANGLE: fltarr(2), optional, min,max pitch angle range for integration ; ARANGE: fltarr(2), optional, min,max angle bin numbers for integration ; BINS: bytarr(nb), optional, angle bins array for integration ; 0,1=exclude,include, ; nb = dat.ntheta ; BINS: bytarr(na,nb), optional, energy/angle bins array for integration ; 0,1=exclude,include ;PURPOSE: ; Returns the velocity, [Vx,Vy,Vz], km/s ;NOTES: ; Function calls j_2d_new.pro and n_2d_new.pro ; Function normally called by "get_2dt.pro" to generate ; time series data for "tplot.pro". ; ;CREATED BY: ; J.McFadden 05-05-07 ;LAST MODIFICATION: ; 05-05-07 J.McFadden ;- function v_2d_new,dat2,ENERGY=en,ERANGE=er,EBINS=ebins,ANGLE=an,ARANGE=ar,BINS=bins vel = [0.,0.,0.] if dat2.valid ne 1 then begin print,'Invalid Data' return, vel endif flux = j_2d_new(dat2,ENERGY=en,ERANGE=er,EBINS=ebins,ANGLE=an,ARANGE=ar,BINS=bins) density = n_2d_new(dat2,ENERGY=en,ERANGE=er,EBINS=ebins,ANGLE=an,ARANGE=ar,BINS=bins) vel(2) = 1.e-5*flux/density ; units are km/sec return, vel end