Network Earth Rotation Service

Earth rotation parameters now

The table is refreshed every 10 seconds 
Parameter TAI time                      Value            Dimension
e1        2025.02.22-11:02:36.4210000   1.560072586D-06  rad 
e2        2025.02.22-11:02:36.4210000   3.572301254D-07  rad 
e3        2025.02.22-11:02:36.4210000   2.694689010D-03  rad 
e1r       2025.02.22-11:02:36.4210000   4.954318854D-14  rad 
e2r       2025.02.22-11:02:36.4210000  -7.262620741D-14  rad 
e3r       2025.02.22-11:02:36.4210000  -3.848268546D-13  rad 
e1rr      2025.02.22-11:02:36.4210000  -2.270181941D-20  rad 
e2rr      2025.02.22-11:02:36.4210000  -3.997666853D-21  rad 
e3rr      2025.02.22-11:02:36.4210000  -2.298570649D-19  rad 
utcmtai   2025.02.22-11:02:36.4210000  -37.0000000       s
ut1mtai   2025.02.22-11:02:36.4210000  -36.9534621       s
ut1rat    2025.02.22-11:02:36.4210000   4.559587934D-04  s/day
lod       2025.02.22-11:02:36.4210000  -4.534723736D-04  s
xpol      2025.02.22-11:02:36.4210000   0.073684         arcsec
ypol      2025.02.22-11:02:36.4210000   0.321788         arcsec
xpolr     2025.02.22-11:02:36.4210000  -1.294291924D-03  arcsec/d
ypolr     2025.02.22-11:02:36.4210000   8.829229984D-04  arcsec/d
deps      2025.02.22-11:02:36.4210000    9.3493404       arcsec
dpsi      2025.02.22-11:02:36.4210000    1.3434204       arcsec
mat       2025.02.22-11:02:36.4210000   7.405907846334D-01  -6.719539437733D-01  -1.785262904085D-03   6.719518608622D-01   7.405929353310D-01  -1.673565549077D-03   2.446712065339D-03   3.981649259801D-05   9.999970060029D-01
matr      2025.02.22-11:02:36.4210000   4.899950401842D-05   5.400488997372D-05  -1.219278313542D-07  -5.400473308294D-05   4.899965563724D-05   1.302059182889D-07  -9.694559530027D-11   5.759210622460D-11   2.349055437653D-13
matrr     2025.02.22-11:02:36.4210000  -3.938087343832D-09   3.573111338407D-09   9.494519242194D-12  -3.573100281441D-09  -3.938098783862D-09   8.891425647488D-12  -4.213540442628D-15  -7.462863253203D-15   1.059381699634D-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