Subject: [IGSREPORT-524] GPS Earth orientation
From: Dennis McCarthy
Date: 1 OCT 1993 17:33:58

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IGS Electronic Report      1-OCT-1993 17:33:58       Message Number 524
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From: Dennis McCarthy
Subj: GPS Earth orientation
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Date:     1 October 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   466  -1.82 -0.44          0.62  0.78
             -49248.5

CODE(ITRF91) 48800.5   453  -0.77 -0.72  -4.11   0.80  0.93  1.41
             -49252.5

JPL          48794.5   423  -0.84 -0.19          0.71  0.74
             -49248.5

ESOC         48794.5   455  -1.04 -0.83          1.25  1.57
             -49248.5

EMR          48830.5   380  -1.30  0.14          0.73  0.88 
             -49255.5
                       273                0.16               0.83

GFZ          48997.5   263  -0.87  0.19          0.36  0.43
             -49255.5

NOAA         48988.5   244  -1.32 -0.72          1.01  1.44
             -49251.5

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

Regards,

Dennis McCarthy
  [email-masked]

--
Dennis D. McCarthy                       [email-masked]
Chief Earth Orientation Parameters       phone: (202) 653-0066
U.S. Naval Observatory                   fax: (202) 653-0587
Washington, DC 20392-5100