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 nanosecond timing precision mode.

Click here to see the documentation for this object in millisecond 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;