Description
Determines the entry time, exit time, and duration of a Spacecraft's pass through the Earth's shadow. Events are reported for Penumbra, Umbra, or Annular shadow condition geometries.
The shadow times are determined using a conical shadow. The algorithm to determine the times a Spacecraft is in any portion of the Earth's shadow is shown in the diagram below.
The algorithm used to determine when the Spacecraft is in any portion of the Earth's shadow.
Note: This method uses a spherical model for the Earth. Use the options available in the VisibilityCalculator to exercise more control over the analysis.
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.
Overload List
Signatures |
Return Value |
Description |
Determines the entry time, exit time, and duration of a Spacecraft's pass through the Earth's shadow. |
||
Spacecraft.EarthShadowTimes(Array EventTime, Array EventType) |
Determines the entry time, exit time, and duration of a Spacecraft's pass through the Earth's shadow |
See also
Coverage and Contact Analysis Guide