Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2018.05.26-17:11:20.2340000   2.173012005D-06  rad 
e2        2018.05.26-17:11:20.2340000   5.196349379D-07  rad 
e3        2018.05.26-17:11:20.2340000   2.692252073D-03  rad 
e1r       2018.05.26-17:11:20.2340000   2.121503194D-14  rad 
e2r       2018.05.26-17:11:20.2340000   8.373489511D-14  rad 
e3r       2018.05.26-17:11:20.2340000   7.633474390D-13  rad 
e1rr      2018.05.26-17:11:20.2340000   1.303877834D-19  rad 
e2rr      2018.05.26-17:11:20.2340000  -1.348092795D-20  rad 
e3rr      2018.05.26-17:11:20.2340000  -1.129114595D-18  rad 
utcmtai   2018.05.26-17:11:20.2340000  -37.0000000       s
ut1mtai   2018.05.26-17:11:20.2340000  -36.9200434       s
ut1rat    2018.05.26-17:11:20.2340000  -9.044456567D-04  s/day
lod       2018.05.26-17:11:20.2340000   8.995135627D-04  s
xpol      2018.05.26-17:11:20.2340000   0.107182         arcsec
ypol      2018.05.26-17:11:20.2340000   0.448216         arcsec
xpolr     2018.05.26-17:11:20.2340000   1.492262950D-03  arcsec/d
ypolr     2018.05.26-17:11:20.2340000   3.780790088D-04  arcsec/d
deps      2018.05.26-17:11:20.2340000   -6.1477639       arcsec
dpsi      2018.05.26-17:11:20.2340000  -14.6578406       arcsec
mat       2018.05.26-17:11:20.2340000  -7.844325730209D-01   6.202125238336D-01   1.401307872707D-03  -6.202116139724D-01  -7.844338238718D-01   1.062948510824D-03   1.758487271612D-03  -3.529598206948D-05   9.999984532372D-01
matr      2018.05.26-17:11:20.2340000  -4.522654427065D-05  -5.720181707349D-05   7.767311105745D-08   5.720172592025D-05  -4.522661090442D-05  -1.021474762415D-07   1.500911173459D-10  -7.085644030643D-11  -2.664346791527D-13
matrr     2018.05.26-17:11:20.2340000   4.171215686266D-09  -3.297976493992D-09  -7.448755989161D-12   3.297971634536D-09   4.171222333325D-09  -5.664263425978D-12   4.986976820776D-15   1.077561829714D-14  -8.416759945331D-18

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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