Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2017.08.18-10:30:43.5040000   1.844476723D-06  rad 
e2        2017.08.18-10:30:43.5040000   1.100678091D-06  rad 
e3        2017.08.18-10:30:43.5040000   2.673242302D-03  rad 
e1r       2017.08.18-10:30:43.5040000  -1.224764217D-13  rad 
e2r       2017.08.18-10:30:43.5040000   7.420161707D-14  rad 
e3r       2017.08.18-10:30:43.5040000   1.428930251D-13  rad 
e1rr      2017.08.18-10:30:43.5040000   8.701457827D-20  rad 
e2rr      2017.08.18-10:30:43.5040000  -1.721613675D-19  rad 
e3rr      2017.08.18-10:30:43.5040000  -6.619662756D-20  rad 
utcmtai   2017.08.18-10:30:43.5040000  -37.0000000       s
ut1mtai   2017.08.18-10:30:43.5040000  -36.6593540       s
ut1rat    2017.08.18-10:30:43.5040000  -1.693055735D-04  s/day
lod       2017.08.18-10:30:43.5040000   1.683823218D-04  s
xpol      2017.08.18-10:30:43.5040000   0.227031         arcsec
ypol      2017.08.18-10:30:43.5040000   0.380451         arcsec
xpolr     2017.08.18-10:30:43.5040000   1.322367739D-03  arcsec/d
ypolr     2017.08.18-10:30:43.5040000  -2.182686514D-03  arcsec/d
deps      2017.08.18-10:30:43.5040000   -7.3489963       arcsec
dpsi      2017.08.18-10:30:43.5040000   -9.1803545       arcsec
mat       2017.08.18-10:30:43.5040000  -5.633108889567D-01   8.262444347010D-01   9.881844747082D-04  -8.262432888029D-01  -5.633117542235D-01   1.376685060858D-03   1.694134299814D-03  -4.097910488156D-05   9.999985641138D-01
matr      2017.08.18-10:30:43.5040000  -6.025061165419D-05  -4.107734167135D-05   1.005249157053D-07   4.107727871476D-05  -6.025069544739D-05  -7.197383478330D-08   1.471253881211D-10  -6.363575132529D-11  -2.518582641971D-13
matrr     2017.08.18-10:30:43.5040000   2.995402435669D-09  -4.393550094132D-09  -5.248080431865D-12   4.393543983690D-09   2.995407025948D-09  -7.330473106137D-12   4.772757405806D-15   1.040686481722D-14  -7.684914028230D-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.
This page was prepared by Leonid Petrov ()
Last update: 2016.06.28_12:42:19