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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        2025.12.05-15:04:07.0000000   1.530690623D-06  rad 
e2        2025.12.05-15:04:07.0000000   6.099991211D-07  rad 
e3        2025.12.05-15:04:07.0000000   2.692440052D-03  rad 
e1r       2025.12.05-15:04:07.0000000  -3.040868375D-14  rad 
e2r       2025.12.05-15:04:07.0000000  -1.230919002D-13  rad 
e3r       2025.12.05-15:04:07.0000000  -5.276956824D-14  rad 
e1rr      2025.12.05-15:04:07.0000000  -2.032834254D-19  rad 
e2rr      2025.12.05-15:04:07.0000000  -6.211171662D-19  rad 
e3rr      2025.12.05-15:04:07.0000000  -1.132040660D-18  rad 
utcmtai   2025.12.05-15:04:07.0000000  -37.0000000       s
ut1mtai   2025.12.05-15:04:07.0000000  -36.9226212       s
ut1rat    2025.12.05-15:04:07.0000000   6.252356969D-05  s/day
lod       2025.12.05-15:04:07.0000000  -6.218261817D-05  s
xpol      2025.12.05-15:04:07.0000000   0.125821         arcsec
ypol      2025.12.05-15:04:07.0000000   0.315728         arcsec
xpolr     2025.12.05-15:04:07.0000000  -2.193655128D-03  arcsec/d
ypolr     2025.12.05-15:04:07.0000000  -5.419216451D-04  arcsec/d
deps      2025.12.05-15:04:07.0000000    8.1248738       arcsec
dpsi      2025.12.05-15:04:07.0000000    3.9470807       arcsec
mat       2025.12.05-15:04:07.0000000   5.031678378917D-01  -8.641878161297D-01  -1.243126854699D-03   8.641850128794D-01   5.031693724170D-01  -2.201403213946D-03   2.527929195194D-03   3.338369855102D-05   9.999968042246D-01
matr      2025.12.05-15:04:07.0000000   6.301736669100D-05   3.669169014090D-05  -1.604224245274D-07  -3.669157814082D-05   6.301757083947D-05   9.068868264564D-08  -8.677390503425D-11   7.263632173201D-11   2.169341103874D-13
matrr     2025.12.05-15:04:07.0000000  -2.675592080188D-09   4.595313876045D-09   6.612663396292D-12  -4.595298988186D-09  -2.675600246174D-09   1.169863481518D-11  -5.441033766313D-15  -6.949759271265D-15   1.397387746651D-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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Last update: 2025.10.01_14:25:31