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        2025.07.03-05:37:07.0000000   2.129806161D-06  rad 
e2        2025.07.03-05:37:07.0000000   8.009036690D-07  rad 
e3        2025.07.03-05:37:07.0000000   2.694838830D-03  rad 
e1r       2025.07.03-05:37:07.0000000  -1.443827350D-14  rad 
e2r       2025.07.03-05:37:07.0000000   5.913824332D-14  rad 
e3r       2025.07.03-05:37:07.0000000  -4.363338365D-13  rad 
e1rr      2025.07.03-05:37:07.0000000   6.727875381D-21  rad 
e2rr      2025.07.03-05:37:07.0000000  -1.087975775D-19  rad 
e3rr      2025.07.03-05:37:07.0000000  -9.647499561D-19  rad 
utcmtai   2025.07.03-05:37:07.0000000  -37.0000000       s
ut1mtai   2025.07.03-05:37:07.0000000  -36.9555167       s
ut1rat    2025.07.03-05:37:07.0000000   5.169863986D-04  s/day
lod       2025.07.03-05:37:07.0000000  -5.141671850D-04  s
xpol      2025.07.03-05:37:07.0000000   0.165198         arcsec
ypol      2025.07.03-05:37:07.0000000   0.439304         arcsec
xpolr     2025.07.03-05:37:07.0000000   1.053919149D-03  arcsec/d
ypolr     2025.07.03-05:37:07.0000000  -2.573085042D-04  arcsec/d
deps      2025.07.03-05:37:07.0000000    8.5757909       arcsec
dpsi      2025.07.03-05:37:07.0000000    2.6827935       arcsec
mat       2025.07.03-05:37:07.0000000   9.957187515970D-01   9.240152169483D-02  -2.475178080127D-03  -9.240132747452D-02   9.957218273444D-01   1.929527988407D-04   2.482417973176D-03   3.658302036075D-05   9.999969181266D-01
matr      2025.07.03-05:37:07.0000000  -6.738010850824D-06   7.260918257553D-05   1.422377149896D-08  -7.260895813447D-05  -6.738025392286D-06   1.805526216542D-07  -1.472505166743D-10  -7.370675173502D-11   3.682348798047D-13
matrr     2025.07.03-05:37:07.0000000  -5.294728861395D-09  -4.913445726799D-10   1.316621380107D-11   4.913435126194D-10  -5.294745228143D-09  -1.037078488728D-12   5.289567279369D-15  -1.088254496307D-14  -1.275996104229D-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: 2022.11.17_15:11:17