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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        2025.01.18-07:49:43.5760000   1.465380070D-06  rad 
e2        2025.01.18-07:49:43.5760000   5.787104711D-07  rad 
e3        2025.01.18-07:49:43.5760000   2.694840599D-03  rad 
e1r       2025.01.18-07:49:43.5760000  -1.312384179D-14  rad 
e2r       2025.01.18-07:49:43.5760000  -6.699136763D-14  rad 
e3r       2025.01.18-07:49:43.5760000   1.496307305D-13  rad 
e1rr      2025.01.18-07:49:43.5760000  -7.122183463D-20  rad 
e2rr      2025.01.18-07:49:43.5760000  -1.087714778D-19  rad 
e3rr      2025.01.18-07:49:43.5760000   5.188321611D-19  rad 
utcmtai   2025.01.18-07:49:43.5760000  -37.0000000       s
ut1mtai   2025.01.18-07:49:43.5760000  -36.9555409       s
ut1rat    2025.01.18-07:49:43.5760000  -1.772886859D-04  s/day
lod       2025.01.18-07:49:43.5760000   1.763219009D-04  s
xpol      2025.01.18-07:49:43.5760000   0.119368         arcsec
ypol      2025.01.18-07:49:43.5760000   0.302256         arcsec
xpolr     2025.01.18-07:49:43.5760000  -1.193871871D-03  arcsec/d
ypolr     2025.01.18-07:49:43.5760000  -2.338836494D-04  arcsec/d
deps      2025.01.18-07:49:43.5760000    8.9132451       arcsec
dpsi      2025.01.18-07:49:43.5760000    0.9677103       arcsec
mat       2025.01.18-07:49:43.5760000  -5.745277974026D-01  -8.184838211708D-01   1.429857791525D-03   8.184814404941D-01  -5.745295755568D-01  -1.974430879692D-03   2.437535321119D-03   3.594664047575D-05   9.999970285603D-01
matr      2025.01.18-07:49:43.5760000   5.968460938708D-05  -4.189535821567D-05  -1.438686356971D-07   4.189522865716D-05   5.968478272425D-05  -1.042247797121D-07   2.824711948625D-11   1.135136293394D-10  -7.293400175607D-14
matrr     2025.01.18-07:49:43.5760000   3.055048308358D-09   4.352283088499D-09  -7.600224264943D-12  -4.352270449043D-09   3.055057755989D-09   1.049086027462D-11  -8.117307701765D-15   1.913942691758D-15   1.970382126008D-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