PROCEDURE: load_wi_or PURPOSE: loads WIND 3D Plasma Experiment orbit data for "tplot". INPUTS: none, but will call "timespan" if time_range is not already set. KEYWORDS: DATA: Raw data can be returned through this named variable. TIME_RANGE: 2 element vector specifying the time range. RESOLUTION: number of seconds resolution to return. POLAR: Computes polar coordinates if set. PRE: If set, use predicted (pre) data. NODATA: Returns 1 if no data available. HEC: If set, retrieve HEC data. VAR_LAB: Return polar data and use as var_labels in tplot. GSM: If set, retrieve GSM data. LAT: If set, retrieve LAT data. SEE ALSO: "make_cdf_index","loadcdf","loadcdfstr","loadallcdf" CREATED BY: Davin Larson FILE: load_wi_or.pro LAST MODIFICATION: 99/12/28