NASA Goddard Space Flight Center   Geodesy and Geophysics Laboratory  

Due to the lapse in federal government funding, NASA is not updating this website. We sincerely regret this inconvenience.

Network Earth Rotation Service: Earth rotation parameters now


The table is refreshed every 10 seconds
Parameter TAI time                      Value            Dimension
e1        2025.10.11-03:46:43.0000000   1.587112251D-06  rad 
e2        2025.10.11-03:46:43.0000000   1.023704516D-06  rad 
e3        2025.10.11-03:46:43.0000000   2.691366303D-03  rad 
e1r       2025.10.11-03:46:43.0000000  -1.102062265D-13  rad 
e2r       2025.10.11-03:46:43.0000000  -1.014472111D-13  rad 
e3r       2025.10.11-03:46:43.0000000  -4.688498279D-13  rad 
e1rr      2025.10.11-03:46:43.0000000  -2.570510867D-19  rad 
e2rr      2025.10.11-03:46:43.0000000   1.287618248D-19  rad 
e3rr      2025.10.11-03:46:43.0000000  -1.875613576D-18  rad 
utcmtai   2025.10.11-03:46:43.0000000  -37.0000000       s
ut1mtai   2025.10.11-03:46:43.0000000  -36.9078964       s
ut1rat    2025.10.11-03:46:43.0000000   5.555126917D-04  s/day
lod       2025.10.11-03:46:43.0000000  -5.524833877D-04  s
xpol      2025.10.11-03:46:43.0000000   0.211154         arcsec
ypol      2025.10.11-03:46:43.0000000   0.327365         arcsec
xpolr     2025.10.11-03:46:43.0000000  -1.807919079D-03  arcsec/d
ypolr     2025.10.11-03:46:43.0000000  -1.964015939D-03  arcsec/d
deps      2025.10.11-03:46:43.0000000    9.1876245       arcsec
dpsi      2025.10.11-03:46:43.0000000    2.8363393       arcsec
mat       2025.10.11-03:46:43.0000000   2.387420352199D-01   9.710828172468D-01  -6.345604935536D-04  -9.710797849620D-01   2.387428756964D-01   2.427043934321D-03   2.508357458356D-03   3.677145917774D-05   9.999968533904D-01
matr      2025.10.11-03:46:43.0000000  -7.081225636121D-05   1.740940554405D-05   1.770991428865D-07  -1.740934404820D-05  -7.081247776766D-05   4.635383250561D-08   5.084288743425D-11  -1.322666751379D-10  -1.226688825327D-13
matrr     2025.10.11-03:46:43.0000000  -1.269509430080D-09  -5.163727456722D-09   3.380659650651D-12   5.163711311255D-09  -1.269513915664D-09  -1.291437708906D-11   9.439195908959D-15   3.261449638709D-15  -2.381693755077D-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

  |   Responsible NASA official: Leonid Petrov   |   Privacy Policy and important notices
Last update: 2025.10.01_14:25:31