Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2017.09.20-18:03:56.3960000   1.574925117D-06  rad 
e2        2017.09.20-18:03:56.3960000   1.128078770D-06  rad 
e3        2017.09.20-18:03:56.3960000   2.674570963D-03  rad 
e1r       2017.09.20-18:03:56.3960000  -1.200889862D-13  rad 
e2r       2017.09.20-18:03:56.3960000  -6.054210637D-14  rad 
e3r       2017.09.20-18:03:56.3960000   9.422687968D-13  rad 
e1rr      2017.09.20-18:03:56.3960000  -1.050972506D-19  rad 
e2rr      2017.09.20-18:03:56.3960000   4.023912408D-21  rad 
e3rr      2017.09.20-18:03:56.3960000  -4.068115837D-19  rad 
utcmtai   2017.09.20-18:03:56.3960000  -37.0000000       s
ut1mtai   2017.09.20-18:03:56.3960000  -36.6775745       s
ut1rat    2017.09.20-18:03:56.3960000  -1.116439091D-03  s/day
lod       2017.09.20-18:03:56.3960000   1.110350961D-03  s
xpol      2017.09.20-18:03:56.3960000   0.232683         arcsec
ypol      2017.09.20-18:03:56.3960000   0.324852         arcsec
xpolr     2017.09.20-18:03:56.3960000  -1.078937785D-03  arcsec/d
ypolr     2017.09.20-18:03:56.3960000  -2.140139359D-03  arcsec/d
deps      2017.09.20-18:03:56.3960000   -6.6579408       arcsec
dpsi      2017.09.20-18:03:56.3960000  -10.9197974       arcsec
mat       2017.09.20-18:03:56.3960000   7.403353075985D-03  -9.999725936981D-01  -4.707405926327D-05   9.999711457750D-01   7.403422480511D-03  -1.702043794199D-03   1.702345656622D-03  -3.447186981862D-05   9.999985504144D-01
matr      2017.09.20-18:03:56.3960000   7.291904700096D-05   5.398660838093D-07  -1.239995892534D-07  -5.398608860513D-07   7.291915238587D-05   3.515332372933D-09  -8.348990082562D-11   1.147882821239D-10   1.460858485578D-13
matrr     2017.09.20-18:03:56.3960000  -3.936727114444D-11   5.317348513797D-09   2.563693508514D-13  -5.317340829032D-09  -3.936765019766D-11   9.042175223964D-12  -8.342660999117D-15  -6.060822848117D-15   1.397305483835D-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