Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds 
Parameter TAI time                      Value            Dimension
e1        2026.10.06-02:55:45.7900000   1.559457285D-06  rad 
e2        2026.10.06-02:55:45.7900000   8.211498348D-07  rad 
e3        2026.10.06-02:55:45.7900000   2.699987201D-03  rad 
e1r       2026.10.06-02:55:45.7900000  -7.241229419D-14  rad 
e2r       2026.10.06-02:55:45.7900000  -8.961655216D-14  rad 
e3r       2026.10.06-02:55:45.7900000   9.874837047D-13  rad 
e1rr      2026.10.06-02:55:45.7900000  -1.990397453D-19  rad 
e2rr      2026.10.06-02:55:45.7900000  -1.786032850D-19  rad 
e3rr      2026.10.06-02:55:45.7900000   2.444182974D-18  rad 
utcmtai   2026.10.06-02:55:45.7900000  -37.0000000       s
ut1mtai   2026.10.06-02:55:45.7900000  -37.0261186       s
ut1rat    2026.10.06-02:55:45.7900000  -1.170011586D-03  s/day
lod       2026.10.06-02:55:45.7900000   1.163631317D-03  s
xpol      2026.10.06-02:55:45.7900000   0.169374         arcsec
ypol      2026.10.06-02:55:45.7900000   0.321661         arcsec
xpolr     2026.10.06-02:55:45.7900000  -1.597081602D-03  arcsec/d
ypolr     2026.10.06-02:55:45.7900000  -1.290479717D-03  arcsec/d
deps      2026.10.06-02:55:45.7900000    8.2535780       arcsec
dpsi      2026.10.06-02:55:45.7900000    8.5156644       arcsec
mat       2026.10.06-02:55:45.7900000   5.264446961629D-01   8.502082158699D-01  -1.404118669891D-03  -8.502053530751D-01   5.264465676910D-01   2.206573984223D-03   2.615240784706D-03   3.215003880838D-05   9.999965797352D-01
matr      2026.10.06-02:55:45.7900000  -6.199795242277D-05   3.838908952264D-05   1.610163011879D-07  -3.838895288588D-05  -6.199816146779D-05   1.024508353666D-07  -6.346948342800D-12  -1.259057427233D-10   2.064674411065D-14
matrr     2026.10.06-02:55:45.7900000  -2.799366616047D-09  -4.520977280505D-09   7.470852099466D-12   4.520962037307D-09  -2.799376579807D-09  -1.174125722467D-11   9.382782891737D-15  -6.039395981678D-16  -2.453480203599D-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