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Network Earth Rotation Service: Earth rotation parameters now


The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2025.01.22-03:59:54.0880000   1.473787908D-06  rad 
e2        2025.01.22-03:59:54.0880000   5.845512583D-07  rad 
e3        2025.01.22-03:59:54.0880000   2.694859748D-03  rad 
e1r       2025.01.22-03:59:54.0880000   4.645370657D-15  rad 
e2r       2025.01.22-03:59:54.0880000  -4.740875966D-14  rad 
e3r       2025.01.22-03:59:54.0880000  -1.156467284D-13  rad 
e1rr      2025.01.22-03:59:54.0880000  -1.656441637D-19  rad 
e2rr      2025.01.22-03:59:54.0880000  -3.971550058D-19  rad 
e3rr      2025.01.22-03:59:54.0880000  -1.577414964D-18  rad 
utcmtai   2025.01.22-03:59:54.0880000  -37.0000000       s
ut1mtai   2025.01.22-03:59:54.0880000  -36.9558035       s
ut1rat    2025.01.22-03:59:54.0880000   1.370230328D-04  s/day
lod       2025.01.22-03:59:54.0880000  -1.362758232D-04  s
xpol      2025.01.22-03:59:54.0880000   0.120572         arcsec
ypol      2025.01.22-03:59:54.0880000   0.303991         arcsec
xpolr     2025.01.22-03:59:54.0880000  -8.448847453D-04  arcsec/d
ypolr     2025.01.22-03:59:54.0880000   8.278644774D-05  arcsec/d
deps      2025.01.22-03:59:54.0880000    8.8828670       arcsec
dpsi      2025.01.22-03:59:54.0880000    0.7755169       arcsec
mat       2025.01.22-03:59:54.0880000  -9.997543694007D-01  -2.202861896462D-02   2.437377818175D-03   2.202863844865D-02  -9.997573399243D-01  -1.885521614348D-05   2.437201718261D-03   3.484152999391D-05   9.999970294125D-01
matr      2025.01.22-03:59:54.0880000   1.606353945515D-06  -7.290345624397D-05  -1.264871371822D-09   7.290323973287D-05   1.606352257863D-06  -1.776957483008D-07   1.091505565070D-10   4.306336707563D-11  -2.675231130341D-13
matrr     2025.01.22-03:59:54.0880000   5.316188174384D-09   1.171370659903D-10  -1.295786981475D-11  -1.171371895861D-10   5.316203962827D-09   9.201586863416D-14  -3.216125633232D-15   7.737359308073D-15   7.555036253378D-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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Last update: 2022.11.17_15:11:17