Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2018.02.19-00:09:25.1130000   1.548768517D-06  rad 
e2        2018.02.19-00:09:25.1130000   3.126597993D-09  rad 
e3        2018.02.19-00:09:25.1130000   2.685255816D-03  rad 
e1r       2018.02.19-00:09:25.1130000   8.195166881D-14  rad 
e2r       2018.02.19-00:09:25.1130000  -8.061148388D-15  rad 
e3r       2018.02.19-00:09:25.1130000   1.020724928D-12  rad 
e1rr      2018.02.19-00:09:25.1130000  -5.183678536D-20  rad 
e2rr      2018.02.19-00:09:25.1130000   6.777337911D-20  rad 
e3rr      2018.02.19-00:09:25.1130000   6.182769496D-19  rad 
utcmtai   2018.02.19-00:09:25.1130000  -37.0000000       s
ut1mtai   2018.02.19-00:09:25.1130000  -36.8241006       s
ut1rat    2018.02.19-00:09:25.1130000  -1.209397164D-03  s/day
lod       2018.02.19-00:09:25.1130000   1.202802119D-03  s
xpol      2018.02.19-00:09:25.1130000   0.000645         arcsec
ypol      2018.02.19-00:09:25.1130000   0.319456         arcsec
xpolr     2018.02.19-00:09:25.1130000  -1.436599766D-04  arcsec/d
ypolr     2018.02.19-00:09:25.1130000   1.460483576D-03  arcsec/d
deps      2018.02.19-00:09:25.1130000   -6.0451579       arcsec
dpsi      2018.02.19-00:09:25.1130000  -11.4859123       arcsec
mat       2018.02.19-00:09:25.1130000  -8.735232390785D-01   4.867800242077D-01   1.535845769982D-03  -4.867793402518D-01  -8.735245885855D-01   8.167255011349D-04   1.739164703568D-03  -3.418928545116D-05   9.999984870675D-01
matr      2018.02.19-00:09:25.1130000  -3.549650921446D-05  -6.369841777638D-05   5.966887388939D-08   6.369831936737D-05  -3.549655928468D-05  -1.119942453704D-07   9.878528946542D-11  -5.345240745290D-11  -1.736316521157D-13
matrr     2018.02.19-00:09:25.1130000   4.644954736263D-09  -2.588449899220D-09  -8.166708605557D-12   2.588446248006D-09   4.644961912281D-09  -4.351139325791D-12   3.935761353733D-15   7.169348147826D-15  -6.612454702934D-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