SGP4Properties.EphemerisType Property

Top

Description

The ephemeris type of the SGP4 state elements. Type 0 indicates the state elements are calculated and should be propagated using the SGP4 algorithm, and present mean motion as the Kozai mean motion. Type 2 indicates the state elements are calculated and should be propagated using the SGP4/SDP4 algorithm, and present mean motion as the Brouwer mean motion. Type 4 indicates that the state elements are calculated and should be propagated using the SGP4-XP algorithm.

Timing Precision Mode

This page describes functionality in millisecond timing precision mode. Millisecond timing precision mode is deprecated and will be removed in a future release. We recommend that you migrate your Mission Plans to nanosecond timing precision mode.

Click here to see the documentation for this object in nanosecond timing precision mode.

Attributes

Type:

integer

Access:

read/write

Default Value:

0 ( Default SGP4 Ephemeris Type )

Valid Values:

Value	Label
0	Default SGP4 Ephemeris Type
2	Brouwer Ephemeris Type
4	SGP4-XP Derived Ephemeris

Syntax

myVariable1 = mySGP4Properties1.EphemerisType;

mySGP4Properties1.EphemerisType = myVariable1;