Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds 
Parameter TAI time                      Value            Dimension
e1        2025.04.26-10:39:57.3530000   1.999709217D-06  rad 
e2        2025.04.26-10:39:57.3530000   3.978302688D-07  rad 
e3        2025.04.26-10:39:57.3530000   2.695807646D-03  rad 
e1r       2025.04.26-10:39:57.3530000   1.077152681D-13  rad 
e2r       2025.04.26-10:39:57.3530000   5.818242198D-14  rad 
e3r       2025.04.26-10:39:57.3530000   8.133211019D-13  rad 
e1rr      2025.04.26-10:39:57.3530000   1.569687222D-19  rad 
e2rr      2025.04.26-10:39:57.3530000  -1.616555872D-19  rad 
e3rr      2025.04.26-10:39:57.3530000  -1.309185600D-18  rad 
utcmtai   2025.04.26-10:39:57.3530000  -37.0000000       s
ut1mtai   2025.04.26-10:39:57.3530000  -36.9688025       s
ut1rat    2025.04.26-10:39:57.3530000  -9.636565220D-04  s/day
lod       2025.04.26-10:39:57.3530000   9.584015412D-04  s
xpol      2025.04.26-10:39:57.3530000   0.082058         arcsec
ypol      2025.04.26-10:39:57.3530000   0.412470         arcsec
xpolr     2025.04.26-10:39:57.3530000   1.036885190D-03  arcsec/d
ypolr     2025.04.26-10:39:57.3530000   1.919623873D-03  arcsec/d
deps      2025.04.26-10:39:57.3530000    9.3155891       arcsec
dpsi      2025.04.26-10:39:57.3530000   -0.1064095       arcsec
mat       2025.04.26-10:39:57.3530000   9.694544993320D-01   2.452595417521D-01  -2.393930748294D-03  -2.452588961715D-01   9.694574542308D-01   5.641675719339D-04   2.459181489010D-03   4.019802184917D-05   9.999969754007D-01
matr      2025.04.26-10:39:57.3530000  -1.788456045915D-05   7.069395268422D-05   4.128535194703D-08  -7.069373712436D-05  -1.788460789240D-05   1.746004636971D-07  -1.332395980625D-10  -6.700490005709D-11   3.303548166366D-13
matrr     2025.04.26-10:39:57.3530000  -5.155068629741D-09  -1.304166163760D-09   1.273230470278D-11   1.304162704979D-09  -5.155084349179D-09  -3.010530521995D-12   4.676764165539D-15  -9.817881729350D-15  -1.112862741628D-17

Back

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.
Back to the Network Earth Rotation Service
This page was prepared by Leonid Petrov ()
Last update: 2017.07.05_12:12:16