Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds

Parameter TAI time                      Value            Dimension
e1        2023.03.27-19:45:31.4270000   1.917776315D-06  rad 
e2        2023.03.27-19:45:31.4270000  -1.254185628D-07  rad 
e3        2023.03.27-19:45:31.4270000   2.699924401D-03  rad 
e1r       2023.03.27-19:45:31.4270000   2.055120013D-13  rad 
e2r       2023.03.27-19:45:31.4270000   4.318454835D-14  rad 
e3r       2023.03.27-19:45:31.4270000  -2.069510979D-13  rad 
e1rr      2023.03.27-19:45:31.4270000   1.987628854D-19  rad 
e2rr      2023.03.27-19:45:31.4270000  -3.775808351D-19  rad 
e3rr      2023.03.27-19:45:31.4270000  -9.377340573D-19  rad 
utcmtai   2023.03.27-19:45:31.4270000  -37.0000000       s
ut1mtai   2023.03.27-19:45:31.4270000  -37.0252574       s
ut1rat    2023.03.27-19:45:31.4270000   2.452042308D-04  s/day
lod       2023.03.27-19:45:31.4270000  -2.438670910D-04  s
xpol      2023.03.27-19:45:31.4270000  -0.025869         arcsec
ypol      2023.03.27-19:45:31.4270000   0.395570         arcsec
xpolr     2023.03.27-19:45:31.4270000   7.696038959D-04  arcsec/d
ypolr     2023.03.27-19:45:31.4270000   3.662486766D-03  arcsec/d
deps      2023.03.27-19:45:31.4270000    7.8911170       arcsec
dpsi      2023.03.27-19:45:31.4270000  -10.0921867       arcsec
mat       2023.03.27-19:45:31.4270000  -5.137103904477D-01   8.579629224631D-01   1.121795280418D-03  -8.579607406772D-01  -5.137116143101D-01   1.935143298619D-03   2.236560464297D-03   3.164690982999D-05   9.999974983948D-01
matr      2023.03.27-19:45:31.4270000  -6.256348501172D-05  -3.746044255731D-05   1.412558015955D-07   3.746035330295D-05  -6.256364442991D-05  -8.180861058302D-08   6.826791896008D-11  -1.257091496662D-10  -1.487073942758D-13
matrr     2023.03.27-19:45:31.4270000   2.731652099176D-09  -4.562213011571D-09  -5.965314603446D-12   4.562201386067D-09   2.731658607101D-09  -1.030077511694D-11   9.107311731052D-15   4.629106829258D-15  -2.053606309228D-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: 2017.07.05_12:12:16