[IGSREPORT-309] Earth orientation

[Dennis]

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IGS Electronic Report      4-JUN-1993 08:49:42       Message Number 309
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>From: Dennis McCarthy
Subj: Earth orientation
-----------------------

An updated look at Earth orientation data submitted to the IERS
follows.  Units are milliseconds of arc for x and y, and
milliseconds of time for UT1-UTC.


Contributor Data Span Points       Mean          Standard Deviation
                                (NEOS-GPS)  
                              x     y   UT1-UTC   x     y   UT1-UTC

Scripps      48780.5   298  -1.65 -0.62          0.63  0.72
             -49129.5     

CODE(ITRF91) 48800.5   331  -0.65 -0.47  -3.50   0.87  0.96  1.03 
             -49130.5

JPL          48794.5   290  -0.83 -0.08          0.77  0.78 
             -49115.5

ESOC         48794.5   336  -1.01 -0.91          1.42  1.75
             -49129.5

EMR          48830.5   261  -1.09  0.41          0.77  0.87
             -49136.5
                       188                0.15               0.97

GFZ          48997.5   126   1.27 -1.03          1.23  1.11
             -49129.5

NOAA         48988.5   129  -1.29 -1.41          0.92  1.31
             -49134.5

Plots of the residuals are available by FAX to anyone interested.

Regards,

Dennis McCarthy
  dmc at maia.usno.navy.mil