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        2026.03.25-07:47:40.0000000   1.957553172D-06  rad 
e2        2026.03.25-07:47:40.0000000   5.393494763D-07  rad 
e3        2026.03.25-07:47:40.0000000   2.694079094D-03  rad 
e1r       2026.03.25-07:47:40.0000000   2.466669371D-15  rad 
e2r       2026.03.25-07:47:40.0000000   7.967917235D-14  rad 
e3r       2026.03.25-07:47:40.0000000   1.269348359D-14  rad 
e1rr      2026.03.25-07:47:40.0000000  -6.600107379D-20  rad 
e2rr      2026.03.25-07:47:40.0000000   3.692061433D-20  rad 
e3rr      2026.03.25-07:47:40.0000000   3.114084322D-20  rad 
utcmtai   2026.03.25-07:47:40.0000000  -37.0000000       s
ut1mtai   2026.03.25-07:47:40.0000000  -36.9450981       s
ut1rat    2026.03.25-07:47:40.0000000  -1.503976501D-05  s/day
lod       2026.03.25-07:47:40.0000000   1.495775065D-05  s
xpol      2026.03.25-07:47:40.0000000   0.111249         arcsec
ypol      2026.03.25-07:47:40.0000000   0.403774         arcsec
xpolr     2026.03.25-07:47:40.0000000   1.419984782D-03  arcsec/d
ypolr     2026.03.25-07:47:40.0000000   4.395920370D-05  arcsec/d
deps      2026.03.25-07:47:40.0000000    8.8850860       arcsec
dpsi      2026.03.25-07:47:40.0000000    6.2818054       arcsec
mat       2026.03.25-07:47:40.0000000   4.881008932156D-01  -8.727863619861D-01  -1.218348554780D-03   8.727834515529D-01   4.881024123740D-01  -2.254269295079D-03   2.562174365689D-03   3.695639964111D-05   9.999967169430D-01
matr      2026.03.25-07:47:40.0000000   6.364437465410D-05   3.559298996435D-05  -1.642439473339D-07  -3.559287909180D-05   6.364458652890D-05   8.887795770678D-08  -9.849683579186D-11   1.052825946062D-10   2.484760174631D-13
matrr     2026.03.25-07:47:40.0000000  -2.595473690139D-09   4.641036558256D-09   6.480730545773D-12  -4.641021107439D-09  -2.595481774163D-09   1.197711701399D-11  -7.721034323183D-15  -7.616646201816D-15   2.004344769712D-17

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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.

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Last update: 2025.10.01_14:25:31