Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds 
Parameter TAI time                      Value            Dimension
e1        2026.01.12-04:07:57.2690000   1.649297727D-06  rad 
e2        2026.01.12-04:07:57.2690000   4.848868363D-07  rad 
e3        2026.01.12-04:07:57.2690000   2.692880663D-03  rad 
e1r       2026.01.12-04:07:57.2690000   4.670150064D-14  rad 
e2r       2026.01.12-04:07:57.2690000  -3.281326620D-14  rad 
e3r       2026.01.12-04:07:57.2690000  -2.860000539D-15  rad 
e1rr      2026.01.12-04:07:57.2690000   1.395866007D-19  rad 
e2rr      2026.01.12-04:07:57.2690000  -1.329084970D-19  rad 
e3rr      2026.01.12-04:07:57.2690000  -2.120298153D-18  rad 
utcmtai   2026.01.12-04:07:57.2690000  -37.0000000       s
ut1mtai   2026.01.12-04:07:57.2690000  -36.9286635       s
ut1rat    2026.01.12-04:07:57.2690000   3.388647074D-06  s/day
lod       2026.01.12-04:07:57.2690000  -3.370168213D-06  s
xpol      2026.01.12-04:07:57.2690000   0.100015         arcsec
ypol      2026.01.12-04:07:57.2690000   0.340192         arcsec
xpolr     2026.01.12-04:07:57.2690000  -5.847743804D-04  arcsec/d
ypolr     2026.01.12-04:07:57.2690000   8.322804848D-04  arcsec/d
deps      2026.01.12-04:07:57.2690000    8.2425456       arcsec
dpsi      2026.01.12-04:07:57.2690000    5.9744689       arcsec
mat       2026.01.12-04:07:57.2690000  -9.929074218435D-01   1.188633805735D-01   2.519604483037D-03  -1.188629187908D-01  -9.929106182344D-01   3.327670321531D-04   2.541295859344D-03   3.091931291732D-05   9.999967704245D-01
matr      2026.01.12-04:07:57.2690000  -8.667620576567D-06  -7.240418546559D-05   2.438950872343D-08   7.240395247050D-05  -8.667654563748D-06  -1.836987798917D-07   1.268795832461D-10   1.873147656773D-11  -3.230187675150D-13
matrr     2026.01.12-04:07:57.2690000   5.279779575742D-09  -6.320553540020D-10  -1.339563581220D-11   6.320528749061D-10   5.279796566266D-09  -1.778792349831D-12  -1.497364232676D-15   8.985873704766D-15   3.510989075094D-18

Back

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.
Back to the Network Earth Rotation Service
This page was prepared by Leonid Petrov ()
Last update: 2025.11.10_08:51:28