Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds 
Parameter TAI time                      Value            Dimension
e1        2025.01.22-08:51:01.4500000   1.473844662D-06  rad 
e2        2025.01.22-08:51:01.4500000   5.836645965D-07  rad 
e3        2025.01.22-08:51:01.4500000   2.694857527D-03  rad 
e1r       2025.01.22-08:51:01.4500000   1.902919473D-15  rad 
e2r       2025.01.22-08:51:01.4500000  -5.399723578D-14  rad 
e3r       2025.01.22-08:51:01.4500000  -1.433800830D-13  rad 
e1rr      2025.01.22-08:51:01.4500000  -1.483693159D-19  rad 
e2rr      2025.01.22-08:51:01.4500000  -3.572228871D-19  rad 
e3rr      2025.01.22-08:51:01.4500000  -1.616436156D-18  rad 
utcmtai   2025.01.22-08:51:01.4500000  -37.0000000       s
ut1mtai   2025.01.22-08:51:01.4500000  -36.9557731       s
ut1rat    2025.01.22-08:51:01.4500000   1.698826598D-04  s/day
lod       2025.01.22-08:51:01.4500000  -1.689562612D-04  s
xpol      2025.01.22-08:51:01.4500000   0.120389         arcsec
ypol      2025.01.22-08:51:01.4500000   0.304002         arcsec
xpolr     2025.01.22-08:51:01.4500000  -9.622998180D-04  arcsec/d
ypolr     2025.01.22-08:51:01.4500000   3.391245934D-05  arcsec/d
deps      2025.01.22-08:51:01.4500000    8.8771108       arcsec
dpsi      2025.01.22-08:51:01.4500000    0.7783861       arcsec
mat       2025.01.22-08:51:01.4500000  -2.715708519719D-01  -9.624181971732D-01   6.972152190610D-04   9.624153611969D-01  -2.715717445213D-01  -2.336687825436D-03   2.438214837660D-03   3.643433333864D-05   9.999970268861D-01
matr      2025.01.22-08:51:01.4500000   7.018043683036D-05  -1.980332438082D-05  -1.702872278722D-07   1.980325939474D-05   7.018064337420D-05  -5.080246402984D-08  -8.809359571110D-12   1.133938035441D-10   1.734773507877D-14
matrr     2025.01.22-08:51:01.4500000   1.444076512963D-09   5.117653334536D-09  -3.704813047538D-12  -5.117638273073D-09   1.444081252411D-09   1.241755964563D-11  -8.341313610999D-15  -8.671314867919D-16   2.035666092514D-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