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SimpleAscentPropagator Class

Propagates a simple (point) launch vehicle from a CentralBody to a specified burnout motion.
Inheritance Hierarchy

Namespace:  AGI.Foundation.Propagators
Assembly:  AGI.Foundation.Models (in AGI.Foundation.Models.dll) Version: 19.5.402.0 (19.5.402.0)
Syntax
public sealed class SimpleAscentPropagator : CartesianOnePointPropagator

The SimpleAscentPropagator type exposes the following members.

Constructors
  NameDescription
Public methodSimpleAscentPropagator
Initializes a new instance.
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Properties
  NameDescription
Public propertyAscentType
Gets or sets the interpolation type for the ascent. Use the quartic type when specifying an initial acceleration.
Public propertyBurnoutEpoch
Gets or sets the time of burnout, at which the launch vehicle will be at BurnoutPosition.
Public propertyBurnoutPosition
Gets or sets the location of burnout.
Public propertyBurnoutVelocityAzimuth
Gets or sets the burnout velocity's azimuth. This defaults to zero.
Public propertyBurnoutVelocityFightPathAngle
Gets or sets the burnout velocity's flight path angle. This defaults to zero.
Public propertyBurnoutVelocityFrame
Gets or sets which reference frame the burnout velocity is specified in.
Public propertyBurnoutVelocityMagnitude
Gets or sets the burnout velocity magnitude in the reference frame of the CentralBody as indicated by the property BurnoutVelocityFrame. This defaults to zero m/s.
Public propertyCentralBody
Gets or sets the central body to be used for the launch segment.
Public propertyInitialAcceleration
Gets or sets the initial acceleration at launch. The AscentType type must be set to quartic to use. This defaults to zero m/s^2.
Public propertyInterpolator
Gets or sets the interpolator used to get values between the analytical points. This defaults to LagrangePolynomialApproximation and order 7. It is recommended that this property be left as the default.
Public propertyIsFrozen
Gets a value indicating whether this object is frozen. A frozen object cannot be modified and an ObjectFrozenException will be thrown if an attempt is made to do so.
(Inherited from DefinitionalObject.)
Public propertyLaunchEpoch
Gets or sets the epoch at which launch occurs.
Public propertyLaunchPosition
Gets or sets the position on/near the CentralBody where the launch takes place.
Public propertyNumberOfSamplePoints
Gets or sets the number of points to be sampled on the interpolation spline.
Public propertyOrder
Gets or sets the order of the motion produced by the propagator. This may be up to jerk (order 3).
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Methods
  NameDescription
Public methodClone
Clones this object using the specified context.
(Overrides DefinitionalObjectClone(CopyContext).)
Public methodCreatePoint
Creates a Point that represents the motion produced by this propagator.
(Inherited from CartesianOnePointPropagator.)
Public methodEnumerateDependencies
Enumerates the dependencies of this object by calling EnumerateT(T) for each object that this object directly depends upon. Derived classes which contain additional dependencies MUST override this method, call the base implementation, and enumerate dependencies introduced by the derived class.
(Overrides DefinitionalObjectEnumerateDependencies(DependencyEnumerator).)
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Public methodFreeze
Freezes this object. Further attempts to modify it will result in an ObjectFrozenException.
(Inherited from DefinitionalObject.)
Public methodGetDefinitionHashCode
Gets a hash code representing the definition of this object.
(Inherited from DefinitionalObject.)
Public methodGetEvaluator
Gets an evaluator that can propagate at individual dates.

This evaluator propagates the orbit state. The result of evaluating will be a MotionT corresponding to the orbital state at the given JulianDate expressed in the propagator's ReferenceFrame.

Note: when evaluating with this evaluator, it may be more efficient to specify times using an arithmetically safe TimeStandard to avoid the need to convert in order to perform the propagation. The length of a time step may be different in different TimeStandards. So be careful when specifying times.

(Inherited from CartesianOnePointPropagator.)
Public methodGetEvaluator(EvaluatorGroup)
Gets an evaluator that can propagate at individual dates.
(Overrides CartesianOnePointPropagatorGetEvaluator(EvaluatorGroup).)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodIsSameDefinition
Determines if this object has the same definition as another object.
(Inherited from DefinitionalObject.)
Public methodStatic memberMixedFixedPositionAndInertialVelocityToMotionFixed
This method computes the burnout motion in the fixed frame of the CentralBody from mixed inertial velocity/fixed position input.
Public methodPropagate(JulianDate, JulianDate, Duration, Int32, ReferenceFrame)
Calculates position (and zero or more derivatives) for regular time steps over an interval.

Note: when propagating, it may be more efficient to specify times using an arithmetically safe TimeStandard to avoid the need to convert in order to perform the propagation. The length of a time step may be different in different TimeStandards. So be careful when specifying times.

(Inherited from CartesianOnePointPropagator.)
Public methodPropagate(JulianDate, JulianDate, Duration, Int32, ReferenceFrame, ITrackCalculationProgress)
Calculates position (and zero or more derivatives) for regular time steps over an interval.

Note: when evaluating with this evaluator, it may be more efficient to specify times using an arithmetically safe TimeStandard to avoid the need to convert in order to perform the propagation. The length of a time step may be different in different TimeStandards. So be careful when specifying times.

(Inherited from CartesianOnePointPropagator.)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
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Events
  NameDescription
Public eventWarningsHandler
An event that can be used to check for/handle warnings produced during propagation. If not set, the propagator will throw an InvalidOperationException if a warning is encountered. The error text in the exception is the same as the summary documentation for each boolean property in the events arguments class.
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See Also