Spacecraft.ProbabilityOfCollision(Variable, Spacecraft, Variable, Variable) Method

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Description

Returns the 2D probability of collision (Pc) between the primary Spacecraft and secondary Spacecraft, using each object's Covariance.

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.

Method Signature

Spacecraft.ProbabilityOfCollision(	Variable ShapeType,
	Spacecraft Spacecraft,
	Variable HardBodyRadius,
	Variable RelativeErrorTolerance)

Arguments

ShapeType

Description:

The shape of the Hard-Body to be used in the numeric integration.

Valid Values:

Value	Label
0	Circle
1	Square

Spacecraft
Description:	The secondary object of the conjunction.

HardBodyRadius
Description:	The Hard-Body Radius to be used for the conjuncting objects, given in units of meters. This argument is a combination of the hard body radius for both the primary and the secondary objects. When the ShapeType is set to Square, the Hard-Body Radius is equal to half the side-length of the Square.
Units:	m
Valid Range:	HardBodyRadius > 0

RelativeErrorTolerance
Description:	The Relative Error Tolerance to be used for integrating the Gaussian distribution.
Valid Range:	RelativeErrorTolerance > 0

Return Value

Type:

number

Returns the 2D probability of collision (Pc) at the time of closest approach (TCA).

Syntax

myVariable1 = mySpacecraft1.ProbabilityOfCollision(myVariable2, mySpacecraft2, myVariable3, myVariable4);