NAME: MLT PURPOSE: convert UT time to MLT calling sequence: mt = mlt(year, ut_seconds, mag_long) inputs: year, time in seconds from Jan. 1 at 00;00:00 UT magnetic longitude of the observation point the time in seconds can be found with routine "cnvtime" the magnetic longitude of the obs. point can be found by using routine "cnvcoord" Copyright 1996-2013 United States Government as represented by the Administrator of the National Aeronautics and Space Administration. All Rights Reserved.