Spacecraft.Access(Variable, TimeSpanArray, Array) Method

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Description

Returns the start time, end time, and duration of a Spacecraft's Sensor's view of celestialBody. The Access time is based on any active Sensors on the calling Spacecraft.

 

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.Access(

Variable celestialBody,


TimeSpanArray EventTime,


Array EventType)

 

 

Arguments

celestialBody


Description:

The numerical identifier for the celestial body that the calling Spacecraft is attempting to access. Body ID's 1-11 are assigned to the default Solar System objects, as shown below. Custom CelestialObjects will have body ID's starting at 12 and assigned in the order they are created.

Valid Values:

Celestial Object

Value

Mercury

Mercury.BodyID or 1

Venus

Venus.BodyID or 2

Earth

Earth.BodyID or 3

Mars

Mars.BodyID or 4

Jupiter

Jupiter.BodyID or 5

Saturn

Saturn.BodyID or 6

Uranus

Uranus.BodyID or 7

Neptune

Neptune.BodyID or 8

Pluto

Pluto.BodyID or 9

Moon

Moon.BodyID or 10

Sun

Sun.BodyID or 11

<Custom CelestialBody>

<Custom CelestialBody>.BodyID, starting at 12 and assigned in the order the custom CelestialObjects are created.

 

 

 

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 the Sensor's view starts before the beginning of the propagation span, FreeFlyer will label the start of the propagation as the start of the Sensor's view.

 

 

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.Access(myVariable2, myTimeSpanArray1, myArray1);

 

 

See also

Spacecraft Object

Spacecraft.Access

Spacecraft Propagation Guide

Coverage and Contact Analysis Guide