Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2020.02.23-01:01:44.2140000   1.657965503D-06  rad 
e2        2020.02.23-01:01:44.2140000   1.299109015D-07  rad 
e3        2020.02.23-01:01:44.2140000   2.712668501D-03  rad 
e1r       2020.02.23-01:01:44.2140000   7.589306865D-14  rad 
e2r       2020.02.23-01:01:44.2140000  -4.242036636D-14  rad 
e3r       2020.02.23-01:01:44.2140000   4.489590727D-13  rad 
e1rr      2020.02.23-01:01:44.2140000   3.439149421D-19  rad 
e2rr      2020.02.23-01:01:44.2140000  -1.851165584D-19  rad 
e3rr      2020.02.23-01:01:44.2140000   1.090578570D-18  rad 
utcmtai   2020.02.23-01:01:44.2140000  -37.0000000       s
ut1mtai   2020.02.23-01:01:44.2140000  -37.2000229       s
ut1rat    2020.02.23-01:01:44.2140000  -5.319453012D-04  s/day
lod       2020.02.23-01:01:44.2140000   5.290445142D-04  s
xpol      2020.02.23-01:01:44.2140000   0.026796         arcsec
ypol      2020.02.23-01:01:44.2140000   0.341980         arcsec
xpolr     2020.02.23-01:01:44.2140000  -7.559851951D-04  arcsec/d
ypolr     2020.02.23-01:01:44.2140000   1.352511570D-03  arcsec/d
deps      2020.02.23-01:01:44.2140000   -0.3771541       arcsec
dpsi      2020.02.23-01:01:44.2140000  -15.9108420       arcsec
mat       2020.02.23-01:01:44.2140000  -9.760065610745D-01   2.177329807997D-01   1.881970146746D-03  -2.177325916133D-01  -9.760083754814D-01   4.117518686281D-04   1.926470587336D-03  -7.893712074056D-06   9.999981443227D-01
matr      2020.02.23-01:01:44.2140000  -1.587731097012D-05  -7.117165418536D-05   3.014668847310D-08   7.117152190100D-05  -1.587733958376D-05  -1.372223312223D-07   1.212107356618D-10  -1.362023187914D-11  -2.336168649384D-13
matrr     2020.02.23-01:01:44.2140000   5.189909298213D-09  -1.157793887613D-09  -1.000611281886D-11   1.157791800872D-09   5.189918943954D-09  -2.198434608823D-12   1.271566990567D-15   8.673128409024D-15  -2.396043418678D-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