Spacecraft.ContactTimes(GroundStation, TimeSpanArray, Array) Method

Top

Description

Contact is determined when the line of sight is within the contactGroundStation masking.

The ContactTimes method will account for refraction if refraction modeling is turned on using the GroundStation.RefractionModelType property.

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.

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.ContactTimes(	GroundStation contactGroundStation,
	TimeSpanArray EventTime,
	Array EventType)

Arguments

contactGroundStation
Description:	GroundStation to use in contact calculation.

EventTime

Description:

The time that the event occurred.

The FF_Preferences.IntervalEventReportingBehavior property controls whether the start of propagation is reported as an event. By default, if contact starts before the beginning of the propagation span, FreeFlyer will label the start of the propagation as the start of contact.

EventType
Description:	The type of the event that occurred. Event Type == 1 is entry into Contact. Event Type == 2 is exit from Contact.

Return Value

Type:

number

Returns the number of elements filled into EventType and EventTime arrays

Syntax

myVariable1 = mySpacecraft1.ContactTimes(myGroundStation1, myTimeSpanArray1, myArray1);