EarthOrientationParametersData Properties |
The EarthOrientationParametersData type exposes the following members.
Properties| Name | Description | |
|---|---|---|
 | CelestialPoleOffsetX |
Gets the x-offset to the definition of the Celestial Intermediate Pole (CIP), in arc seconds.
|
| CelestialPoleOffsetY |
Gets the y-offset to the definition of the Celestial Intermediate Pole (CIP), in arc seconds.
|
| Date |
Gets the instant at which the parameters are specified, in the TAI time standard.
|
| DeltaEpsilonCorrection |
Gets the correction to the nutation in the obliquity of the ecliptic (delta Delta epsilon) with
respect to the IAU1980 theory, in arc seconds.
|
| DeltaPsiCorrection |
Gets the correction to the nutation in longitude (delta Delta psi) with respect to the IAU1980 theory, in arc seconds.
|
| LengthOfDayCorrection |
Gets the correction to the length of a solar day ("LOD"), in seconds. This defines the difference
between the astronomically determined length of a day and the length of a standard solar day (86400.0 SI Seconds).
This accounts for effects from zonal tides, oceanic tides, angular momentum transfer from the moon, and
other effects on the Earth's rotation.
|
| PoleWanderX |
Gets the pole wander in the X direction at this instant, in arc seconds.
|
| PoleWanderY |
Gets the pole wander in the Y direction at this instant, in arc seconds.
|
| SecondsDifference |
Gets the number of seconds difference between Date in UTC and TAI.
|
| TaiOffsetFromUtc |
Gets the number of leap seconds ("DAT") as specified in the EOP file. This yields the relationship between
the UTC and TAI time scales by the following relation: DAT = TAI - UTC
|
| Ut1MinusUtc |
Gets the difference UT1 - UTC at this instant.
|
See Also