Modified version of Scenario Editor with NORAD TLE (Two-Line Element Sets) import support.Used NORAD SGP4/SDP4 orbital model for calculation state/speed vectors of earth-orbiting objects.C++ Source code for the SGP4/SDP4 algorithms was developed by Michael HenryInstallation:Copy ScnEditorTLE.dll to Orbiter \Modules\Plugin\ directory and activate ScnEditorTLE in Modules tab.Changes from standard Scenario Editor:Added button "Load TLE" on "State vectors" tab of vessels parameters. Button active in Earth ref.equator(fixed)cartesian mode only.Orbiter must be paused during editing!Useful links:
[*]NORAD TLE Current Data.
[*]ISS TRAJECTORY DATA
[*]Space-Track (TLE database)