Name

Description

C1

The C/A code pseudorange measurement at the L1 frequency, in units of km.

C2

The C/A code pseudorange measurement at the L2 frequency, in units of km.

D1

The Dopplershift measurement at the L1 frequency.

D2

The Dopplershift measurement at the L2 frequency.

DeclaredName

The name of the object as declared.

IonoFree

The derived ionofree pseudorange value computed as a function of the C1 and C2, or P1 and P2 measurements.

L1

The carrierphase measurement at the L1 frequency.

L2

The carrierphase measurement at the L2 frequency.

Name

The name displayed for this object in output windows such as views, plots, and reports.

ObjectBeingObserved

The GPS Receiver attached to the spacecraft being estimated.

ObjectId

The unique identifier for the object.

ObjectType

The type of the object.

ObservedEpoch

The epoch of the Observation in TAI.

ObservedSensor

The Sensor attached to the GPS Receiver being observed. The Sensor's X, Y, and Z position properties will be used to model an offset from the origin of the Spacecraft BCS when modeling measurements.

Observer

The GPS Spacecraft transmitting the pseudorange signal.

P1

The Pcode pseudorange measurement at the L1 frequency, in units of km.

P2

The Pcode pseudorange measurement at the L2 frequency, in units of km.

PRN

The PRN code of the observing GPS satellite.

S1

The raw signal strength or SNR measurement (as given by the receiver) at the L1 frequency.

S2

The raw signal strength or SNR measurement (as given by the receiver) at the L2 frequency.

UseC1

A flag indicating whether or not the C1 Pseudorange measurement is to be used.

UseC2

A flag indicating whether or not the C2 Pseudorange measurement is to be used.

UseIonoFree

A flag indicating whether or not the ionofree derived pseudorange measurement is to be used. This is only available if C1 and C2, or P1 and P2 are available.

UseIonosphericCorrection

A flag indicating whether or not the Ionospheric correction will be used.

UseMeasurementWeighting

A flag indicating whether or not to perform measurement weighting using internal geometricbased expressions. Measurement weighting should be turned off if a custom Measurement Noise model is implemented at the script level.

UseP1

A flag indicating whether or not the P1 Pseudorange measurement is to be used.

UseP2

A flag indicating whether or not the P2 Pseudorange measurement is to be used.

WasUnderweightingUsed

A flag indicating whether or not measurement underweighting was used as part of the filter state and covariance update for this observation.
