Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2020.10.21-07:16:21.1570000   1.474426406D-06  rad 
e2        2020.10.21-07:16:21.1570000   8.436243056D-07  rad 
e3        2020.10.21-07:16:21.1570000   2.710704430D-03  rad 
e1r       2020.10.21-07:16:21.1570000  -6.828620993D-14  rad 
e2r       2020.10.21-07:16:21.1570000  -7.723099304D-14  rad 
e3r       2020.10.21-07:16:21.1570000  -5.089551236D-14  rad 
e1rr      2020.10.21-07:16:21.1570000  -6.668673825D-20  rad 
e2rr      2020.10.21-07:16:21.1570000  -1.648412952D-20  rad 
e3rr      2020.10.21-07:16:21.1570000  -1.119410097D-18  rad 
utcmtai   2020.10.21-07:16:21.1570000  -37.0000000       s
ut1mtai   2020.10.21-07:16:21.1570000  -37.1730887       s
ut1rat    2020.10.21-07:16:21.1570000   6.030311068D-05  s/day
lod       2020.10.21-07:16:21.1570000  -5.997426769D-05  s
xpol      2020.10.21-07:16:21.1570000   0.174010         arcsec
ypol      2020.10.21-07:16:21.1570000   0.304122         arcsec
xpolr     2020.10.21-07:16:21.1570000  -1.376355095D-03  arcsec/d
ypolr     2020.10.21-07:16:21.1570000  -1.216947617D-03  arcsec/d
deps      2020.10.21-07:16:21.1570000    1.4549771       arcsec
dpsi      2020.10.21-07:16:21.1570000  -18.2974435       arcsec
mat       2020.10.21-07:16:21.1570000  -7.531842570007D-01   6.578079048315D-01   1.495107834692D-03  -6.578066065019D-01  -7.531857409301D-01   1.306943791366D-03   1.985811859374D-03   8.776773486267D-07   9.999980282733D-01
matr      2020.10.21-07:16:21.1570000  -4.796801509371D-05  -5.492317164292D-05   9.541584201881D-08   5.492306356139D-05  -4.796810999175D-05  -1.089604236045D-07   1.268225897678D-10  -2.504479315517D-11  -2.518243172902D-13
matrr     2020.10.21-07:16:21.1570000   4.005053058223D-09  -3.497889811942D-09  -7.945312566524D-12   3.497882891100D-09   4.005060939226D-09  -6.958222097347D-12   1.736801873033D-15   8.818818439824D-15  -3.473392509842D-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