Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds 
Parameter TAI time                      Value            Dimension
e1        2023.05.31-09:57:25.3420000   2.460373837D-06  rad 
e2        2023.05.31-09:57:25.3420000   4.592483733D-07  rad 
e3        2023.05.31-09:57:25.3420000   2.701429423D-03  rad 
e1r       2023.05.31-09:57:25.3420000   6.178687923D-14  rad 
e2r       2023.05.31-09:57:25.3420000   1.307743170D-13  rad 
e3r       2023.05.31-09:57:25.3420000   2.051449338D-13  rad 
e1rr      2023.05.31-09:57:25.3420000   9.684953908D-20  rad 
e2rr      2023.05.31-09:57:25.3420000   2.390687052D-19  rad 
e3rr      2023.05.31-09:57:25.3420000  -8.844424902D-19  rad 
utcmtai   2023.05.31-09:57:25.3420000  -37.0000000       s
ut1mtai   2023.05.31-09:57:25.3420000  -37.0458964       s
ut1rat    2023.05.31-09:57:25.3420000  -2.430642128D-04  s/day
lod       2023.05.31-09:57:25.3420000   2.417387429D-04  s
xpol      2023.05.31-09:57:25.3420000   0.094727         arcsec
ypol      2023.05.31-09:57:25.3420000   0.507489         arcsec
xpolr     2023.05.31-09:57:25.3420000   2.330565623D-03  arcsec/d
ypolr     2023.05.31-09:57:25.3420000   1.101121229D-03  arcsec/d
deps      2023.05.31-09:57:25.3420000    7.3671853       arcsec
dpsi      2023.05.31-09:57:25.3420000  -10.1355892       arcsec
mat       2023.05.31-09:57:25.3420000   7.928388111502D-01   6.094287143008D-01  -1.806023176070D-03  -6.094272235971D-01   7.928408675040D-01   1.348315364172D-03   2.253591080507D-03   3.164293955912D-05   9.999974601598D-01
matr      2023.05.31-09:57:25.3420000  -4.444013432393D-05   5.781486879591D-05   9.849985400538D-08  -5.781471875610D-05  -4.444024343033D-05   1.317338764606D-07  -1.197364476520D-10  -1.381846661474D-10   2.742102559634D-13
matrr     2023.05.31-09:57:25.3420000  -4.215915867309D-09  -3.240633686888D-09   9.606395232680D-12   3.240625730747D-09  -4.215926808840D-09  -7.182702405488D-12   9.933504319773D-15  -8.875014921466D-15  -2.213872410685D-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