PROCEDURE: load_hkp_mfi PURPOSE: Creates TPLOT magnetic field variables from 3DP housekeeping data. To be used when key parameter file is not available. INPUTS: none KEYWORDS: none NOTES: 3DP housekeeping data gives direction of magnetic field only. A magnitude of 1 is assumed to create these variables. CREATED BY: Peter Schroeder LAST MODIFIED: %W% %E%