This property has been Deprecated. Please use Spacecraft.InShadow() instead.
EarthShadow returns an integer value indicating when the Spacecraft is in any portion of the Earth's shadow. A value of 1 is returned when the Spacecraft is in Earth's shadow and a 0 is returned if it is not. The calculation assumes a spherical Earth and spherical Sun. When a Spacecraft is in the penumbra region of the shadow, or partial shadow, EarthShadow returns a 1.
The three regions of the Earth's shadow, the umbra, penumbra, and annular, are shown in the diagram below. If a spacecraft is in any of the three regions of the shadow, EarthShadow returns a value of 1. A spherical Earth and spherical Sun are assumed.
The three regions of the Earth's shadow.
Timing Precision Mode
This page describes functionality in millisecond timing precision mode.