earth orientation parameters wikipedia - EAS

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  1. The Earth Orientation Parameters (EOP) are the parameters representing the rotational part of the transformation between the current releases of the International Celestial Reference Frame (ICRF) and the International Terrestrial Reference Frame (ITRF).
    ggos.org/item/earth-orientation-parameter/
    ggos.org/item/earth-orientation-parameter/
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    What is the purpose of the Earth Orientation parameters?
    The collection of earth orientation parameters is fitted to describe the observed rotation irregularities. Technically, they provide the rotational transform from the International Terrestrial Reference System (ITRS) to the International Celestial Reference System (ICRS), or vice versa, as a function of time.
    en.wikipedia.org/wiki/Earth_Orientation_Parameters
    What is the International Earth rotation and Reference Systems Service?
    The International Earth Rotation and Reference Systems Service ( IERS) is responsible for disseminating the EOP time series on operational basis derived from space geodetic techniques, including VLBI, SLR, GNSS and DORIS provided by the corresponding IAG Services, i.e., IVS, ILRS, IGS and IDS.
    ggos.org/item/earth-orientation-parameter/
    What is Earth rotation?
    Accordingly, the EOP describe the change of the orientation of the Earth’s surface, on which the observatories are located, with respect to a space fixed reference frame. Earth rotation refers to the solid Earth component of the dynamic Earth system excluding deformations, such as tides and continental drift.
    ggos.org/item/earth-orientation-parameter/
    How does IERS monitor the Earth's rotation?
    The Sub-bureau for Rapid Service and Predictions of Earth Orientation Parameters of the IERS, located at the United States Naval Observatory, monitors the Earth's rotation. Part of its mission involves the determination of a time scale based on the current rate of the rotation of the Earth. Other services of IERS are at the Paris Observatory.
    en.wikipedia.org/wiki/International_Earth_Rotation_and_R…
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    https://en.wikipedia.org/wiki/Earth_Orientation_Parameters

    In geodesy and astrometry, earth orientation parameters (EOP) describe irregularities in the rotation of planet Earth. EOP provide the rotational transform from the International Terrestrial Reference System (ITRS) to the International Celestial Reference System (ICRS), or vice versa, as a function … See more

    Universal time
    Universal time (UT1) tracks the Earth's rotation in time, which performs one revolution in about 24 hours. The Earth's rotation is uneven, so UT is not linear with respect to See more

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  4. https://en.wikipedia.org/wiki/Earth's_rotation

    Earth's rotation or Earth's spin is the rotation of planet Earth around its own axis, as well as changes in the orientation of the rotation axis in space. Earth rotates eastward, in prograde motion. As viewed from the northern polar star Polaris, Earth turns counterclockwise.
    The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where Earth's axis of rotation meets its surface. This point is distinct fro…

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      WebThe Earth Orientation Parameters ( EOP) are the parameters representing the rotational part of the transformation between the current releases of the International Celestial Reference Frame (ICRF) and the

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    • https://eop2-external.jpl.nasa.gov

      WebEarth Orientation Parameter (EOP2) files are designed to deliver calibrations for the rotation of station locations from the Earth-fixed frame to the inertial (radio) frame.

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    • Earth orientation parameters - Wikipedia @ WordDisk

      https://worddisk.com/wiki/Earth_Orientation_Parameter

      WebEarth's rotational velocity is not constant over time. Any motion of mass in or on Earth causes a slowdown or speedup of the rotation speed, or a change of rotation axis. Small …

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      WebIn geodesy and astrometry, earth orientation parameters (EOP) describe irregularities in the rotation of planet Earth. EOP provide the rotational transform from the International …

    • https://en.wikipedia.org/wiki/International_Earth...

      WebThe International Earth Rotation and Reference Systems Service ( IERS ), formerly the International Earth Rotation Service, is the body responsible for maintaining global time

    • Earth orientation parameters - Wikipedia

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      WebIn geodesy and astrometry, earth orientation parameters (EOP) describe irregularities in the rotation of planet Earth. EOP provide the rotational transform from the International …

    • https://en.wikipedia.org/wiki/World_Geodetic_System

      WebThe World Geodetic System is a standard for use in cartography, geodesy, and satellite navigation including GPS. This standard includes the definition of the coordinate system's fundamental and derived constants, the …

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