Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds 
Parameter TAI time                      Value            Dimension
e1        2025.04.01-19:47:44.9010000   1.830495147D-06  rad 
e2        2025.04.01-19:47:44.9010000   2.799601337D-07  rad 
e3        2025.04.01-19:47:44.9010000   2.695405120D-03  rad 
e1r       2025.04.01-19:47:44.9010000   8.070122432D-14  rad 
e2r       2025.04.01-19:47:44.9010000  -4.796502156D-14  rad 
e3r       2025.04.01-19:47:44.9010000   1.180895987D-13  rad 
e1rr      2025.04.01-19:47:44.9010000  -1.301198048D-19  rad 
e2rr      2025.04.01-19:47:44.9010000  -2.746492274D-19  rad 
e3rr      2025.04.01-19:47:44.9010000  -2.833084407D-18  rad 
utcmtai   2025.04.01-19:47:44.9010000  -37.0000000       s
ut1mtai   2025.04.01-19:47:44.9010000  -36.9632825       s
ut1rat    2025.04.01-19:47:44.9010000  -1.399174467D-04  s/day
lod       2025.04.01-19:47:44.9010000   1.391544534D-04  s
xpol      2025.04.01-19:47:44.9010000   0.057746         arcsec
ypol      2025.04.01-19:47:44.9010000   0.377567         arcsec
xpolr     2025.04.01-19:47:44.9010000  -8.547980440D-04  arcsec/d
ypolr     2025.04.01-19:47:44.9010000   1.438199055D-03  arcsec/d
deps      2025.04.01-19:47:44.9010000    9.5143385       arcsec
dpsi      2025.04.01-19:47:44.9010000    0.3135733       arcsec
mat       2025.04.01-19:47:44.9010000  -6.001385229520D-01   7.998947898997D-01   1.441651961789D-03  -7.998923281873D-01  -6.001402533121D-01   1.984858051198D-03   2.452870987380D-03   3.802343496389D-05   9.999969909845D-01
matr      2025.04.01-19:47:44.9010000  -5.832906922600D-05  -4.376291826774D-05   1.448773493360D-07   4.376279214662D-05  -5.832924907755D-05  -1.051051292444D-07   1.009795500726D-10  -9.827945766982D-11  -2.439536202533D-13
matrr     2025.04.01-19:47:44.9010000   3.191233207267D-09  -4.253435991694D-09  -7.664258860392D-12   4.253422875699D-09   3.191242403817D-09  -1.056503325073D-11   6.925994483190D-15   7.014794937401D-15  -1.727518511288D-17

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: 2017.07.05_12:12:16