Returns the ECF coordinate of a satellite subpoint at a given time.

Namespace: Zeptomoby.OrbitTools.Track
Assembly: Zeptomoby.OrbitTools.Track (in Zeptomoby.OrbitTools.Track.dll) Version: 1.5.0.0 (1.5.0.0)

Syntax

C#
public static EcfTime SubpointEcf(
	this IOrbit orbit,
	DateTime utc,
	double kmLoft
)
Visual Basic
<ExtensionAttribute> _
Public Shared Function SubpointEcf ( _
	orbit As IOrbit, _
	utc As DateTime, _
	kmLoft As Double _
) As EcfTime
Visual C++
[ExtensionAttribute]
public:
static EcfTime^ SubpointEcf(
	IOrbit^ orbit, 
	DateTime utc, 
	double kmLoft
)

Parameters

orbit
Type: IOrbit
The satellite.
utc
Type: System..::..DateTime
The time in UTC.
kmLoft
Type: System..::..Double
The height of the subpoint above the earth ellipsoid model, in kilometers.

Return Value

The orbit subpoint, in ECF coordinates.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IOrbit. When you use instance method syntax to call this method, omit the first parameter. For more information, see or .

See Also