Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds 
Parameter TAI time                      Value            Dimension
e1        2026.02.24-22:07:25.6770000   1.876384613D-06  rad 
e2        2026.02.24-22:07:25.6770000   5.192777002D-07  rad 
e3        2026.02.24-22:07:25.6770000   2.693239887D-03  rad 
e1r       2026.02.24-22:07:25.6770000   1.982988611D-14  rad 
e2r       2026.02.24-22:07:25.6770000  -3.356597986D-14  rad 
e3r       2026.02.24-22:07:25.6770000  -1.028886897D-13  rad 
e1rr      2026.02.24-22:07:25.6770000  -7.644937602D-20  rad 
e2rr      2026.02.24-22:07:25.6770000  -2.436231546D-19  rad 
e3rr      2026.02.24-22:07:25.6770000  -1.617734848D-18  rad 
utcmtai   2026.02.24-22:07:25.6770000  -37.0000000       s
ut1mtai   2026.02.24-22:07:25.6770000  -36.9335897       s
ut1rat    2026.02.24-22:07:25.6770000   1.219067803D-04  s/day
lod       2026.02.24-22:07:25.6770000  -1.212420022D-04  s
xpol      2026.02.24-22:07:25.6770000   0.107109         arcsec
ypol      2026.02.24-22:07:25.6770000   0.387032         arcsec
xpolr     2026.02.24-22:07:25.6770000  -5.981887007D-04  arcsec/d
ypolr     2026.02.24-22:07:25.6770000   3.533939381D-04  arcsec/d
deps      2026.02.24-22:07:25.6770000    8.8081170       arcsec
dpsi      2026.02.24-22:07:25.6770000    6.8485931       arcsec
mat       2026.02.24-22:07:25.6770000  -5.900686825344D-01   8.073516963870D-01   1.479267765080D-03  -8.073490148646D-01  -5.900705357877D-01   2.081103645500D-03   2.553054881266D-03   3.370871345949D-05   9.999967403819D-01
matr      2026.02.24-22:07:25.6770000  -5.887281950408D-05  -4.302862295868D-05   1.518974658192D-07   4.302848792816D-05  -5.887301540234D-05  -1.078283546922D-07   1.167437789242D-10  -8.931011955337D-11  -2.950437074118D-13
matrr     2026.02.24-22:07:25.6770000   3.137686887818D-09  -4.293088079573D-09  -7.862699711079D-12   4.293073793578D-09   3.137696733683D-09  -1.107687887132D-11   6.406154431715D-15   8.095559971185D-15  -1.664979502878D-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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This page was prepared by Leonid Petrov ()
Last update: 2025.11.10_08:51:28