PROGRAM: get_bsn2,PNAME=pname,BNAME=bname,VNAME=vname,BOW=bow, intpos=intpos INPUT OPTIONS pname: string, Name of orbital position structure Default is 'wi_pos' bname: string, Name of magnetic field structure Default is 'wi_B3' vname: string, Name of solar wind velocity structure Default is 'wi_pm_Vp' bow: structure Bow Shock parameters Default bow={standoff:23.5,eccentricity:1.15,x_offset:3.0} PURPOSE: Generates tplot structures for intersection of Bow Shock and s/c B-field line. Generates the following structures: th_bn: the angle (in degrees) between shock normal and the field line that passes through the spacecraft l1: the distance along the field line to the shock l2: the distance from a point that is missdist from the spacecraft in x to the tangent point d,m: the distance along x from the spacecraft to a point where the B field line would be tangent to the bow shock. A positive d means that the field line has already intersected the shock. A positive m indicates that the field line has not yet intersected the shock. All distances are in Re. l1 and l2 are negative if the field line is anti-parallel to the vector connecting the spacecraft and the point of field line intersection. OPTIONAL OUTPUT: intpos: array of position vectors giving points where bow shock intersects B field line that passes through spacecraft CREATED BY: P.Schroeder LAST MODIFICATION: