Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2020.09.23-15:38:55.1460000   1.615460856D-06  rad 
e2        2020.09.23-15:38:55.1460000   9.785812815D-07  rad 
e3        2020.09.23-15:38:55.1460000   2.710959755D-03  rad 
e1r       2020.09.23-15:38:55.1460000  -7.424121893D-14  rad 
e2r       2020.09.23-15:38:55.1460000  -3.370111088D-14  rad 
e3r       2020.09.23-15:38:55.1460000  -3.401756600D-13  rad 
e1rr      2020.09.23-15:38:55.1460000  -2.591572814D-19  rad 
e2rr      2020.09.23-15:38:55.1460000   3.043794818D-19  rad 
e3rr      2020.09.23-15:38:55.1460000  -1.372429658D-18  rad 
utcmtai   2020.09.23-15:38:55.1460000  -37.0000000       s
ut1mtai   2020.09.23-15:38:55.1460000  -37.1765901       s
ut1rat    2020.09.23-15:38:55.1460000   4.030542090D-04  s/day
lod       2020.09.23-15:38:55.1460000  -4.008562868D-04  s
xpol      2020.09.23-15:38:55.1460000   0.201847         arcsec
ypol      2020.09.23-15:38:55.1460000   0.333213         arcsec
xpolr     2020.09.23-15:38:55.1460000  -6.005969084D-04  arcsec/d
ypolr     2020.09.23-15:38:55.1460000  -1.323073495D-03  arcsec/d
deps      2020.09.23-15:38:55.1460000    1.4939478       arcsec
dpsi      2020.09.23-15:38:55.1460000  -17.3760511       arcsec
mat       2020.09.23-15:38:55.1460000  -5.408920751522D-01  -8.410913198554D-01   1.074570298554D-03   8.410896698812D-01  -5.408931425491D-01  -1.666001929502D-03   1.982487467441D-03   2.682736818920D-06   9.999980348662D-01
matr      2020.09.23-15:38:55.1460000   6.133322755764D-05  -3.944255084280D-05  -1.213670219985D-07   3.944247314046D-05   6.133334763842D-05  -7.829173937442D-08   8.284599087161D-12   1.370557471757D-10  -1.679183102037D-14
matrr     2020.09.23-15:38:55.1460000   2.876190560516D-09   4.472498342052D-09  -5.709443797243D-12  -4.472489585918D-09   2.876196227301D-09   8.850065955620D-12  -1.002474449750D-14   2.499698824162D-16   1.985448772495D-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