Description
The Observation object is a base type that provides object-being-observed, observer, and observed epoch properties to the objects that derive from it. See the Orbit Determination Guide for more information.
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->Observation
Derived Types: BRTSObservation, CustomObservation, GNSSObservationBase, GNSSObservation, PseudorangeObservation, GroundStationObservation, DSNObservation, OrbitStateObservation, CartesianStateObservation, EquinoctialStateObservation, PointSolutionObservation, SpacecraftObservation, TDRSObservation
Available In Editions:
Mission
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.
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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Name
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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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ObjectBeingObserved
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The object being observed in this observation, ie. the object whose state is being measured.
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Type: Object
Access: Read-Only
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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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ObservedEpoch
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The epoch of the Observation in TAI.
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Type: Variable
Access: Read/Write
Units: day
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Observer
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The object performing the observation, ie. the object that is taking measurements of the state of the ObjectBeingObserved.
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Type: Object
Access: Read-Only
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WasUnderweightingUsed
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A flag indicating whether or not measurement underweighting was used as part of the filter state and covariance update for this observation.
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Type: Variable
Access: Read-Only
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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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See also
Orbit Determination Guide
Observations and Measurements
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