[IGSREPORT-336] GPS Earth orientation

[Dennis]

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IGS Electronic Report     18-JUN-1993 11:02:00       Message Number 336
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>From: Dennis McCarthy
Subj: GPS 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   319  -1.68 -0.58          0.64  0.76
             -49143.5     

CODE(ITRF91) 48800.5   346  -0.68 -0.53  -3.55   0.86  0.97  1.05 
             -49145.5

JPL          48794.5   311  -0.85 -0.10          0.77  0.76 
             -49136.5

ESOC         48794.5   350  -1.04 -0.93          1.39  1.73
             -49143.5

EMR          48830.5   275  -1.14  0.35          0.75  0.89
             -49150.5
                       196                0.19               0.96

GFZ          48997.5   144  -0.87  0.18          0.36  0.45
             -49136.5

NOAA         48988.5   138  -1.43 -1.37          0.95  1.34
             -49143.5

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

Regards,

Dennis McCarthy
  dmc at maia.usno.navy.mil