Description
The EstimableEquinoctialA object holds information about how the semi-major axis (from the Equinoctial element set) of a Spacecraft state is handled in the Orbit Determination / State Estimation process. This object is not creatable in script, but EstimableEquinoctialA is always created as a child object of the EquinoctialOrbitStateEstimablePropertyContainer object, as seen below:
Spacecraft1.OD.Equinoctial.A.Sigma = 0.05;
Users cannot create instances of this type of object. However, users can access instances of this object type that have been created indirectly, for example as children of other objects. Users can also access any static properties and methods on this object type.
Inheritance Hierarchy: Object->EstimableProperty->EstimableEquinoctialA
Available In Editions:
Engineer
Mission
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.
Name
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Description
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Attributes
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DeclaredName
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The name of the object as declared.
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Type: String
Access: Read-Only
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DisplayName
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The name displayed for this object in output windows such as views, plots, and reports.
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Type: String
Access: Read/Write
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ObjectId
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The unique identifier for the object.
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Type: Variable
Access: Read-Only
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ObjectType
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The type of the object.
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Type: String
Access: Read-Only
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ProcessAction
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Indicates whether the property should be estimated, considered, or ignored in the Orbit Determination process.
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Type: Variable
Access: Read/Write
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ProcessNoise
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The process noise to be added to the property's covariance with each time-step. The amount of process noise added is scaled by a ratio of the duration of the step taken and the propagator step size.
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Type: Variable
Access: Read/Write
Units: km^2
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Sigma
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Specifies the uncertainty (standard deviation) in the value of the property.
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Type: Variable
Access: Read/Write
Units: km
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SmoothedValue
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The smoothed value of the property when the property is estimated in Kalman Filter / Smoother combination.
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Type: Variable
Access: Read-Only
Units: km
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StateUpdate
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The value of the state update that is applied to this property when it is estimated in an Orbit Determination process.
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Type: Variable
Access: Read-Only
Units: km
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Value
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The current value of the property.
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Type: Variable
Access: Read/Write
Units: km
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Name
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Description
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ClearSavedStates
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Clears previous saved states for this object.
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GetFromFile
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Load the object state from the specified FreeFlyer object file.
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GetFromString
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Load the object state from the specified string.
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PutToFile
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Convert the object state to FreeFlyer object xml and write to a file.
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PutToString
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Convert the object state to FreeFlyer object xml and return as a string.
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ReferenceEquals
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Returns 1 if the argument refers to the calling object and 0 otherwise.
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Restore
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Restore an object's state from a previously saved state.
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Save
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Save the object's state so that it can be restored later.
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