Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds 
Parameter TAI time                      Value            Dimension
e1        2026.03.06-07:43:50.3080000   1.902598494D-06  rad 
e2        2026.03.06-07:43:50.3080000   5.073327628D-07  rad 
e3        2026.03.06-07:43:50.3080000   2.693421666D-03  rad 
e1r       2026.03.06-07:43:50.3080000   3.791233564D-15  rad 
e2r       2026.03.06-07:43:50.3080000  -2.184460755D-14  rad 
e3r       2026.03.06-07:43:50.3080000   5.292461837D-13  rad 
e1rr      2026.03.06-07:43:50.3080000  -1.179040831D-19  rad 
e2rr      2026.03.06-07:43:50.3080000   5.202873756D-20  rad 
e3rr      2026.03.06-07:43:50.3080000  -1.685749611D-18  rad 
utcmtai   2026.03.06-07:43:50.3080000  -37.0000000       s
ut1mtai   2026.03.06-07:43:50.3080000  -36.9360825       s
ut1rat    2026.03.06-07:43:50.3080000  -6.270727951D-04  s/day
lod       2026.03.06-07:43:50.3080000   6.236532619D-04  s
xpol      2026.03.06-07:43:50.3080000   0.104645         arcsec
ypol      2026.03.06-07:43:50.3080000   0.392439         arcsec
xpolr     2026.03.06-07:43:50.3080000  -3.892988515D-04  arcsec/d
ypolr     2026.03.06-07:43:50.3080000   6.756463207D-05  arcsec/d
deps      2026.03.06-07:43:50.3080000    9.0774241       arcsec
dpsi      2026.03.06-07:43:50.3080000    6.5844604       arcsec
mat       2026.03.06-07:43:50.3080000   1.655578558676D-01  -9.862000034697D-01  -3.866740316745D-04   9.861967611088D-01   1.655583032006D-01  -2.529153990722D-03   2.558268771001D-03   3.738463422068D-05   9.999967269263D-01
matr      2026.03.06-07:43:50.3080000   7.191460361216D-05   1.207270208743D-05  -1.842919651394D-07  -1.207266936770D-05   7.191483970012D-05   2.823368493033D-08  -5.911679341829D-11   1.288469952400D-10   1.464202265028D-13
matrr     2026.03.06-07:43:50.3080000  -8.803529472124D-10   5.244112909462D-09   2.058737246485D-12  -5.244095693434D-09  -8.803553329127D-10   1.343886425699D-11  -9.450170200387D-15  -4.418750122840D-15   2.432127272617D-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: 2025.11.10_08:51:28