Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds 
Parameter TAI time                      Value            Dimension
e1        2025.01.25-05:39:50.7780000   1.479243398D-06  rad 
e2        2025.01.25-05:39:50.7780000   5.580813840D-07  rad 
e3        2025.01.25-05:39:50.7780000   2.694750531D-03  rad 
e1r       2025.01.25-05:39:50.7780000   1.854638525D-14  rad 
e2r       2025.01.25-05:39:50.7780000  -1.763689888D-13  rad 
e3r       2025.01.25-05:39:50.7780000  -6.808741813D-13  rad 
e1rr      2025.01.25-05:39:50.7780000  -3.414081352D-20  rad 
e2rr      2025.01.25-05:39:50.7780000  -4.299453429D-19  rad 
e3rr      2025.01.25-05:39:50.7780000  -1.382689908D-18  rad 
utcmtai   2025.01.25-05:39:50.7780000  -37.0000000       s
ut1mtai   2025.01.25-05:39:50.7780000  -36.9543058       s
ut1rat    2025.01.25-05:39:50.7780000   8.067279258D-04  s/day
lod       2025.01.25-05:39:50.7780000  -8.023287030D-04  s
xpol      2025.01.25-05:39:50.7780000   0.115113         arcsec
ypol      2025.01.25-05:39:50.7780000   0.305116         arcsec
xpolr     2025.01.25-05:39:50.7780000  -3.143121001D-03  arcsec/d
ypolr     2025.01.25-05:39:50.7780000   3.305203109D-04  arcsec/d
deps      2025.01.25-05:39:50.7780000    8.8214963       arcsec
dpsi      2025.01.25-05:39:50.7780000    1.0069666       arcsec
mat       2025.01.25-05:39:50.7780000  -8.722911134812D-01  -4.889822228515D-01   2.144545835586D-03   4.889808431109D-01  -8.722937489834D-01  -1.162133787932D-03   2.438936689664D-03   3.492285488510D-05   9.999970251797D-01
matr      2025.01.25-05:39:50.7780000   3.565704657180D-05  -6.360866489687D-05  -8.463158841109D-08   6.360847280758D-05   3.565714691088D-05  -1.563455906696D-07   8.000168645083D-11   8.744923828979D-11  -1.981736140620D-13
matrr     2025.01.25-05:39:50.7780000   4.638403098483D-09   2.600160229630D-09  -1.140114885712D-11  -2.600152913504D-09   4.638417106445D-09   6.171138287367D-12  -6.438915646490D-15   5.455344504798D-15   1.549963385467D-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