NASA Goddard Space Flight Center   Geodesy and Geophysics Laboratory  

Network Earth Rotation Service: Earth rotation parameters now

The table is refreshed every 10 seconds 
Parameter TAI time                      Value            Dimension
e1        2026.03.06-21:10:38.0000000   1.904024338D-06  rad 
e2        2026.03.06-21:10:38.0000000   5.105700702D-07  rad 
e3        2026.03.06-21:10:38.0000000   2.693445806D-03  rad 
e1r       2026.03.06-21:10:38.0000000   1.997829716D-14  rad 
e2r       2026.03.06-21:10:38.0000000   4.650487345D-14  rad 
e3r       2026.03.06-21:10:38.0000000   4.375864742D-13  rad 
e1rr      2026.03.06-21:10:38.0000000   2.952943288D-20  rad 
e2rr      2026.03.06-21:10:38.0000000   4.220073850D-19  rad 
e3rr      2026.03.06-21:10:38.0000000  -2.007747794D-18  rad 
utcmtai   2026.03.06-21:10:38.0000000  -37.0000000       s
ut1mtai   2026.03.06-21:10:38.0000000  -36.9364135       s
ut1rat    2026.03.06-21:10:38.0000000  -5.184705756D-04  s/day
lod       2026.03.06-21:10:38.0000000   5.156432685D-04  s
xpol      2026.03.06-21:10:38.0000000   0.105313         arcsec
ypol      2026.03.06-21:10:38.0000000   0.392733         arcsec
xpolr     2026.03.06-21:10:38.0000000   8.287763367D-04  arcsec/d
ypolr     2026.03.06-21:10:38.0000000   3.560388128D-04  arcsec/d
deps      2026.03.06-21:10:38.0000000    9.0567430       arcsec
dpsi      2026.03.06-21:10:38.0000000    6.5346037       arcsec
mat       2026.03.06-21:10:38.0000000  -5.266663177385D-01   8.500710900121D-01   1.315935151454D-03  -8.500682683733D-01  -5.266679605763D-01   2.190526700095D-03   2.555164302118D-03   3.504191555871D-05   9.999967349484D-01
matr      2026.03.06-21:10:38.0000000  -6.198795625368D-05  -3.840523390982D-05   1.598768978595D-07   3.840511421138D-05  -6.198816237025D-05  -9.592262415639D-08   1.057015996733D-10  -1.005799241524D-10  -2.665613112642D-13
matrr     2026.03.06-21:10:38.0000000   2.800545157722D-09  -4.520248138434D-09  -6.994840882030D-12   4.520233107790D-09   2.800553886381D-09  -1.165855351241D-11   7.192922950993D-15   7.675646877706D-15  -1.866942863717D-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