Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2017.11.23-05:18:40.4570000   1.156226188D-06  rad 
e2        2017.11.23-05:18:40.4570000   6.881727395D-07  rad 
e3        2017.11.23-05:18:40.4570000   2.679341857D-03  rad 
e1r       2017.11.23-05:18:40.4570000  -2.753581517D-14  rad 
e2r       2017.11.23-05:18:40.4570000  -7.549870394D-14  rad 
e3r       2017.11.23-05:18:40.4570000   5.307542652D-13  rad 
e1rr      2017.11.23-05:18:40.4570000   4.664883390D-20  rad 
e2rr      2017.11.23-05:18:40.4570000   1.935308959D-20  rad 
e3rr      2017.11.23-05:18:40.4570000   3.304479661D-19  rad 
utcmtai   2017.11.23-05:18:40.4570000  -37.0000000       s
ut1mtai   2017.11.23-05:18:40.4570000  -36.7429998       s
ut1rat    2017.11.23-05:18:40.4570000  -6.288596325D-04  s/day
lod       2017.11.23-05:18:40.4570000   6.254303554D-04  s
xpol      2017.11.23-05:18:40.4570000   0.141946         arcsec
ypol      2017.11.23-05:18:40.4570000   0.238489         arcsec
xpolr     2017.11.23-05:18:40.4570000  -1.345483487D-03  arcsec/d
ypolr     2017.11.23-05:18:40.4570000  -4.907234519D-04  arcsec/d
deps      2017.11.23-05:18:40.4570000   -7.3426287       arcsec
dpsi      2017.11.23-05:18:40.4570000  -12.7241142       arcsec
mat       2017.11.23-05:18:40.4570000  -7.843737050317D-01   6.202870431856D-01   1.369273888777D-03  -6.202861869906D-01  -7.843748991581D-01   1.031406482138D-03   1.713792145557D-03  -4.033355562739D-05   9.999985306438D-01
matr      2017.11.23-05:18:40.4570000  -4.523198254217D-05  -5.719752044935D-05   7.529869817859D-08   5.719743346012D-05  -4.523204512874D-05  -9.979571217704D-08   1.015865387911D-10  -1.236274918414D-11  -1.745971023937D-13
matrr     2017.11.23-05:18:40.4570000   4.170902682334D-09  -3.298372790735D-09  -7.276983948592D-12   3.298368226395D-09   4.170909025288D-09  -5.491130755034D-12   9.325850342733D-16   7.056169754133D-15  -1.324112486951D-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