Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2021.12.05-07:57:24.1260000   1.232162561D-06  rad 
e2        2021.12.05-07:57:24.1260000   5.384232932D-07  rad 
e3        2021.12.05-07:57:24.1260000   2.705935226D-03  rad 
e1r       2021.12.05-07:57:24.1260000  -2.278040459D-14  rad 
e2r       2021.12.05-07:57:24.1260000  -1.238991861D-13  rad 
e3r       2021.12.05-07:57:24.1260000  -2.539766652D-13  rad 
e1rr      2021.12.05-07:57:24.1260000  -7.139498493D-20  rad 
e2rr      2021.12.05-07:57:24.1260000  -2.646063756D-19  rad 
e3rr      2021.12.05-07:57:24.1260000  -1.513704977D-18  rad 
utcmtai   2021.12.05-07:57:24.1260000  -37.0000000       s
ut1mtai   2021.12.05-07:57:24.1260000  -37.1076865       s
ut1rat    2021.12.05-07:57:24.1260000   3.009220704D-04  s/day
lod       2021.12.05-07:57:24.1260000  -2.992810918D-04  s
xpol      2021.12.05-07:57:24.1260000   0.111058         arcsec
ypol      2021.12.05-07:57:24.1260000   0.254152         arcsec
xpolr     2021.12.05-07:57:24.1260000  -2.208041996D-03  arcsec/d
ypolr     2021.12.05-07:57:24.1260000  -4.059759519D-04  arcsec/d
deps      2021.12.05-07:57:24.1260000    3.9017664       arcsec
dpsi      2021.12.05-07:57:24.1260000  -15.6919613       arcsec
mat       2021.12.05-07:57:24.1260000  -9.733415939792D-01  -2.293511443376D-01   2.047930941036D-03   2.293506643014D-01  -9.733437483374D-01  -4.694219510405D-04   2.101003240132D-03   1.278641169535D-05   9.999977928085D-01
matr      2021.12.05-07:57:24.1260000   1.672451470980D-05  -7.097734679004D-05  -3.413307291543D-08   7.097718976875D-05   1.672454950976D-05  -1.493014293529D-07   8.684273350149D-11   5.750318296148D-11  -1.831925284517D-13
matrr     2021.12.05-07:57:24.1260000   5.175738382745D-09   1.219573468209D-09  -1.088741819490D-11  -1.219570931623D-09   5.175749833296D-09   2.488512550298D-12  -4.246734887394D-15   5.793005084702D-15   8.837574230294D-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