SetSGP4Prop
Set the routine for an SGP4 propagator
Syntax
SetSGP4Prop <SatObjectPath> {Routine}
Description
Use this command to choose the implementation of the SGP4 propagator that STK will use.
{Routine} is an optional parameter that enables you to select the SGP4 routine used for propagating ephemeris. Valid values for {Routine} are:
| {Routine} | Description |
|---|---|
| SGP4 | Use the internal SGP4 routine implemented by STK. |
| Default | Use the propagator selected in the Edit Preferences panel. |
| <Name> | Use an installed SGP4 plugin routine, e.g., ASTROSTDS_SGP4_V9. STK provides an interface to the USSF SGP4 routines; contact customer support for more information. |
If you do not specify {Routine}, STK will use the internal SGP4 routine.
In the past, you may have used the {Propagator} parameter to choose the USGovMSGP4 routine. This is no longer necessary, as the implementation of the internal SGP4 routine and the UsGov routine have been made the same.
These parameters are case sensitive.
Different SGP4 implementations (other than the internal SGP4 routine implemented by STK) may or may not be available to you, depending on your STK install configuration. You can determine if different routines are available by creating a satellite, choosing the SGP4 propagator on the Orbit Properties Page, and noting whether a combobox appears on the panel listing names of routines.
Examples
Return message
Group membership
This command belongs to the following group(s):
Version
5.0.3