Subject: [IGSREPORT-498] GPS Earth orientation
From: D. McCarthy
Date: 17 SEP 1993 09:12:47

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IGS Electronic Report     17-SEP-1993 09:12:47       Message Number 498
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From: D. McCarthy
Subj: GPS Earth orientation
---------------------------

Date:     16 September 1993

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   445  -1.79 -0.43          0.61  0.79
             -49227.5

CODE(ITRF91) 48800.5   440  -0.76 -0.69  -4.03   0.81  0.93  1.35
             -49239.5

JPL          48794.5   416  -0.84 -0.18          0.71  0.73
             -49241.5

ESOC         48794.5   448  -1.04 -0.84          1.26  1.58
             -49241.5

EMR          48830.5   359  -1.27  0.18          0.73  0.89 
             -49234.5
                       261                0.17               0.84

GFZ          48997.5   242  -0.86  0.22          0.36  0.44
             -49234.5

NOAA         48988.5   229  -1.41 -0.74          0.96  1.49
             -49236.5

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

Regards,

Dennis McCarthy
  [email-masked]