Set the LOP Drag parameters for a Satellite using the LOP propagator.
LOP <SatObjectPath> Drag {DragOption} <Parameters>
The LOP Drag command enables you to set the LOP drag parameters for a satellite using the LOP propagator by specifying a {DragOption} and necessary parameters.
{DragOption} can be:
| {DragOption} | <Parameters> | Description |
|---|---|---|
| Basic | {On | Off} <Cd> <CrossSectionArea> |
<Cd> is the atmospheric drag coefficient and is between -10.0 and 10.0. <CrossSectionArea> is entered in m**2 and is between 1e-5 and 99999.9 m**2. |
| Model | {1976Standard | Exponential} [<RefDensity> <RefHeight> <ScaleHeight>] | If 1976Standard is entered no other
parameters should be entered.
If Exponential is entered, then also enter <RefDensity>, <RefHeight>, and <ScaleHeight>. <RefDensity> is a number between 0.0 and 1000.0. <RefHeight> and <ScaleHeight> are entered in Connect distance units and can be between 0.0 and 100000000.0 meters. |
| Advanced | {OscAltState} <MaxDragAlt> <DensityWeightFactor> | Valid values for {OscAltState} are On
or Off.
<MaxDragAlt> is entered in Connect distance units and can be between 0.0 and 100000000.0 meters. <DensityWeightFactor> can be between 0.0 and 1000.0. |
To set the LOP drag using the Basic drag option:
LOP */Satellite/Satellite2 Drag Basic On 3.5 20
To set the LOP drag using the Model drag option:
LOP */Satellite/Satellite2 Drag Model Exponential 0.003 123.0 234.0
To set the LOP drag using the Advanced drag option:
LOP */Satellite/Satellite2 Drag Advanced Off 765.0 1.023
If activated, Connect returns an acknowledgement message.
This command belongs to the following group(s):
4.2
STK Programming Interface 11.0.1