Spacecraft.SunTerminatorCrossingTimes() Method

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Description

Returns time of entry into darkness, entry into light, and duration in darkness of the spacecraft sub-satellite point. Darkness is defined to be the period when the spacecraft sub-satellite point is within the Earth-Umbra cone.

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.

Note: This is an interval method. See the Interval Methods page for more information.

Note: This method has a state. See the Methods and Properties with State page for more information.

Method Signature

Spacecraft.SunTerminatorCrossingTimes(

)

Return Value

Type:

string

Returns a string containing the event entry and exit times

The FF_Preferences.IntervalEventReportingBehavior property controls whether the start and end of propagation are reported as events. By default, if the time in shadow starts before the beginning of the propagation span, FreeFlyer will label the start of the propagation as the start of the time in shadow. If the time in shadow extends past the end of the propagation span, FreeFlyer labels the end of propagation as the end of the time in shadow.

Syntax

myString1 = mySpacecraft1.SunTerminatorCrossingTimes();