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Network Earth Rotation Service: Earth rotation parameters now


The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2025.05.15-21:17:51.0000000   2.087647361D-06  rad 
e2        2025.05.15-21:17:51.0000000   4.901509591D-07  rad 
e3        2025.05.15-21:17:51.0000000   2.695930764D-03  rad 
e1r       2025.05.15-21:17:51.0000000   1.292432746D-13  rad 
e2r       2025.05.15-21:17:51.0000000   6.119690186D-14  rad 
e3r       2025.05.15-21:17:51.0000000  -3.764916640D-13  rad 
e1rr      2025.05.15-21:17:51.0000000   4.377177246D-19  rad 
e2rr      2025.05.15-21:17:51.0000000  -8.651995150D-22  rad 
e3rr      2025.05.15-21:17:51.0000000  -7.171447177D-20  rad 
utcmtai   2025.05.15-21:17:51.0000000  -37.0000000       s
ut1mtai   2025.05.15-21:17:51.0000000  -36.9704909       s
ut1rat    2025.05.15-21:17:51.0000000   4.460829144D-04  s/day
lod       2025.05.15-21:17:51.0000000  -4.436503494D-04  s
xpol      2025.05.15-21:17:51.0000000   0.101101         arcsec
ypol      2025.05.15-21:17:51.0000000   0.430608         arcsec
xpolr     2025.05.15-21:17:51.0000000   1.090607078D-03  arcsec/d
ypolr     2025.05.15-21:17:51.0000000   2.303280489D-03  arcsec/d
deps      2025.05.15-21:17:51.0000000    8.7457634       arcsec
dpsi      2025.05.15-21:17:51.0000000    0.4509944       arcsec
mat       2025.05.15-21:17:51.0000000  -9.750149735709D-01  -2.221260442026D-01   2.412840531717D-03   2.221254489663D-01  -9.750179584829D-01  -5.153225148090D-04   2.467029401083D-03   3.350611823474D-05   9.999969563170D-01
matr      2025.05.15-21:17:51.0000000   1.619764393559D-05  -7.109943239294D-05  -3.742009648626D-08   7.109921481623D-05   1.619768695268D-05  -1.759141829975D-07   1.465582088268D-10   6.715967035805D-11  -3.638147776359D-13
matrr     2025.05.15-21:17:51.0000000   5.184636615434D-09   1.181154026292D-09  -1.282799205635D-11  -1.181150890316D-09   5.184652481658D-09   2.728355610610D-12  -4.930745181059D-15   1.030689793254D-14   1.179304233209D-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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Last update: 2022.11.17_15:11:17