API TLE options

The way to set how TLE(s) will be generated will depend of the chosen option as described here.

Single TLE

We have to instantiate a GtmSingleTle object. Two constructors are then available :

• one with the minimum data to give (the other ones will be set to default values) :

final AbsoluteDate date = new AbsoluteDate("2020-01-01T00:00:00.000", GtmConstants.UTC);
final GtmGeoPropagator geo = new GtmGeoPropagator();
...
// GtmSingleTle data
final GtmSingleTle data = new GtmSingleTle(date, geo.getAmountOfPoints());

• one with all the needed data. The example below is fully equivalent to the one above.

final GtmSingleTle data = new GtmSingleTle(date, geo.getAmountOfPoints(), 1.0, false, false, GtmBuildingMethods.DIFFERENTIAL, 30);

These data corresponds to the ones described here when using the GUI.

Best single TLE

In that case, we will use a GtmBestTle object.

• one with the minimum data to give (the other ones will be set to default values) :

// GtmBestTle data
final GtmBestTle data = new GtmBestTle(date, geo.getAmountOfPoints(), geo.getAmountOfPoints());

• one with all the needed data. The example below is fully equivalent to the one above.

final GtmBestTle data = new GtmBestTle(date, geo.getAmountOfPoints(), geo.getAmountOfPoints(), 1.0, false, false, GtmBuildingMethods.DIFFERENTIAL, 30);

These data corresponds to the ones described here when using the GUI.