Standard Rapid EOP Data since 02. January 1973 (IAU1980)

Available downloads

Content

Quick-look weekly estimates of the EOP determined by combining the most recently available observed and modeled data (including VLBI 24-hour and intensive, GPS, and AAM). The combination process involves applying systematic corrections and slightly smoothing, in order to remove the high frequency noise.
finals.all contains the values from IERS Bulletin A for x/y pole, UT1-UTC, LOD, dPsi, dEps, their errors and predictions for next 365 days for x/y pole, UT1-UTC, dPsi and dEps as well as the values from IERS Bulletin B for x/y pole, UT1-UTC, dPsi, dEps at daily intervals since 02. January 1973.
Celestial pole offsets (dPsi, dEps) are related to the IAU1980 nutation theory.
Format

ASCII
Format Description

https://maia.usno.navy.mil/ser7/readme.finals
Documentation

http://hpiers.obspm.fr/eoppc/bul/bulb/explanatory.html
https://maia.usno.navy.mil
Title

Standard Rapid EOP Data since 02. January 1973 (IAU1980)
Data

Year, Month, Day, Modified Julian Date

PM-x [arcsec], error_PM-x [arcsec],
PM-y [arcsec], error_PM-y [arcsec],
UT1-UTC [seconds], error_UT1-UTC [seconds],
LOD [milliseconds], error_LOD [milliseconds],
dPsi [milliarcsec], error_dPsi [milliarcsec],
dEps [milliarcsec], error_dEps [milliarcsec]
(from Bulletin A)

PM-x [arcsec], PM-y [arcsec], UT1-UTC [seconds],
dPsi [milliarcsec], dEps [milliarcsec]
(from Bulletin B)
Data Points

18948
Time Start

1973-01-02
Time End

2024-11-17
Time Interval

1 day
Accuracy 
-          Count        Min        Max    Average    Average (last 365 days)
     PMx:   18525   0.000006   0.043206   0.002003   0.000020
     PMy:   18525   0.000007   0.040434   0.001759   0.000022
 UT1-UTC:   18525   0.000001   0.001515   0.000082   0.000007
     LOD:   18524   0.000900   1.071200   0.059767   0.004742
    dPsi:   15687   0.000000   2.764000   0.525839   0.830967
    dEps:   15687   0.000000   1.159000   0.253977   0.130460

For accuracy of predictions see latest annual report on 
http://www.iers.org/IERS/EN/Organization/ProductCentres/
RapidServicePredictionCentre/rapid.html
Keywords

EOP, Rapid data, Predictions, Pole coordinates, x pole, y pole, LOD, UTC1-UTC, DUT1, dPsi, dEps, weekly, IAU1980
Frequency

weekly
Source

https://maia.usno.navy.mil/ser7/finals.all
Created by

IERS Rapid Service Prediction Centre
Published by

IERS Rapid Service Prediction Centre
Date

2023-09-21
Contact

usn.ncr.navobsydc.mbx.eopcp@mail.mil
Distribution

onLine