Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds

Parameter TAI time                      Value            Dimension
e1        2025.06.09-07:33:36.7800000   2.140446120D-06  rad 
e2        2025.06.09-07:33:36.7800000   6.076342692D-07  rad 
e3        2025.06.09-07:33:36.7800000   2.695928705D-03  rad 
e1r       2025.06.09-07:33:36.7800000   1.631250988D-14  rad 
e2r       2025.06.09-07:33:36.7800000   9.791906384D-14  rad 
e3r       2025.06.09-07:33:36.7800000  -5.165606211D-13  rad 
e1rr      2025.06.09-07:33:36.7800000   1.540768851D-20  rad 
e2rr      2025.06.09-07:33:36.7800000   9.336410155D-20  rad 
e3rr      2025.06.09-07:33:36.7800000  -1.877693815D-18  rad 
utcmtai   2025.06.09-07:33:36.7800000  -37.0000000       s
ut1mtai   2025.06.09-07:33:36.7800000  -36.9704626       s
ut1rat    2025.06.09-07:33:36.7800000   6.120424152D-04  s/day
lod       2025.06.09-07:33:36.7800000  -6.087048452D-04  s
xpol      2025.06.09-07:33:36.7800000   0.125334         arcsec
ypol      2025.06.09-07:33:36.7800000   0.441499         arcsec
xpolr     2025.06.09-07:33:36.7800000   1.745042982D-03  arcsec/d
ypolr     2025.06.09-07:33:36.7800000   2.907097941D-04  arcsec/d
deps      2025.06.09-07:33:36.7800000    8.4502355       arcsec
dpsi      2025.06.09-07:33:36.7800000    1.2918126       arcsec
mat       2025.06.09-07:33:36.7800000   9.821175672952D-01   1.882528908470D-01  -2.435795111939D-03  -1.882524027150D-01   9.821205871938D-01   4.302117357462D-04   2.473233128552D-03   3.602577901099D-05   9.999969409053D-01
matr      2025.06.09-07:33:36.7800000  -1.372758167945D-05   7.161736453608D-05   3.152354044264D-08  -7.161714419676D-05  -1.372761764881D-05   1.776692455337D-07  -1.402022245278D-10  -7.601292978178D-11   3.494922812487D-13
matrr     2025.06.09-07:33:36.7800000  -5.222404644151D-09  -1.001033725585D-09   1.295608632113D-11   1.001031103377D-09  -5.222420712114D-09  -2.298438504723D-12   5.372865311514D-15  -1.055823123007D-14  -1.293343469643D-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: 2017.07.05_12:12:16