Daily Rapid EOP Data for the last 90 days (IAU1980)

Available downloads

Content

Quick-look daily 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.daily contains for the last 90 days the values from IERS Bulletin A for x/y pole, UT1-UTC, LOD, dPsi, dEps, their errors and predictions for next 90 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.
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

Daily Rapid EOP Data for the last 90 days (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

181
Time Start

2022-12-26
Time End

2023-06-24
Time Interval

1 day
Accuracy 
-          Count        Min        Max    Average
     PMx:      90   0.000012   0.000092   0.000033
     PMy:      90   0.000008   0.000092   0.000029
 UT1-UTC:      90   0.000004   0.000029   0.000008
     LOD:      89   0.002800   0.019500   0.005339
    dPsi:      75   0.322000   1.181000   0.784827
    dEps:      75   0.037000   0.213000   0.121813

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, UT1-UTC, DUT1, dPsi, dEps, daily, IAU1980
Frequency

daily
Source

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

IERS Rapid Service Prediction Centre
Published by

IERS Rapid Service Prediction Centre
Date

2023-03-25
Contact

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

onLine