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Network Earth Rotation Service: Earth rotation parameters now


The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2025.07.01-07:08:41.0000000   2.131728428D-06  rad 
e2        2025.07.01-07:08:41.0000000   7.869279784D-07  rad 
e3        2025.07.01-07:08:41.0000000   2.694905117D-03  rad 
e1r       2025.07.01-07:08:41.0000000  -1.969717409D-14  rad 
e2r       2025.07.01-07:08:41.0000000   8.124096494D-14  rad 
e3r       2025.07.01-07:08:41.0000000  -4.326185183D-13  rad 
e1rr      2025.07.01-07:08:41.0000000  -5.453995333D-20  rad 
e2rr      2025.07.01-07:08:41.0000000  -6.620584169D-20  rad 
e3rr      2025.07.01-07:08:41.0000000   1.410297136D-19  rad 
utcmtai   2025.07.01-07:08:41.0000000  -37.0000000       s
ut1mtai   2025.07.01-07:08:41.0000000  -36.9564257       s
ut1rat    2025.07.01-07:08:41.0000000   5.125843357D-04  s/day
lod       2025.07.01-07:08:41.0000000  -5.097891272D-04  s
xpol      2025.07.01-07:08:41.0000000   0.162316         arcsec
ypol      2025.07.01-07:08:41.0000000   0.439701         arcsec
xpolr     2025.07.01-07:08:41.0000000   1.447817924D-03  arcsec/d
ypolr     2025.07.01-07:08:41.0000000  -3.510288401D-04  arcsec/d
deps      2025.07.01-07:08:41.0000000    8.5986754       arcsec
dpsi      2025.07.01-07:08:41.0000000    2.7946502       arcsec
mat       2025.07.01-07:08:41.0000000   8.966004353121D-01   4.428347747536D-01  -2.240907627262D-03  -4.428334919839D-01   8.966032349728D-01   1.066495978825D-03   2.481486534437D-03   3.612819092090D-05   9.999969204549D-01
matr      2025.07.01-07:08:41.0000000  -3.229192797770D-05   6.538134074535D-05   7.792386448071D-08  -6.538113644296D-05  -3.229202189820D-05   1.634669311066D-07  -1.124485350152D-10  -1.195199353938D-10   2.833584370559D-13
matrr     2025.07.01-07:08:41.0000000  -4.767667797283D-09  -2.354771411815D-09   1.192020996014D-11   2.354764563342D-09  -4.767682695265D-09  -5.682160049015D-12   8.775382349712D-15  -8.329323911319D-15  -2.150207993182D-17

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Rms errors of the Earth orientation parameter at the current moment:
1.1 nrad for components 1,2 (polar motion) and
2.5 nrad for component 3 (axial component, or UT1),
which corresponds to 7 and 16 mm at the Earth's surface respectively.
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Last update: 2022.11.17_15:11:17