Subject: [IGSREPORT-510] GPS Earth orientation
From: Dennis McCarthy
Date: 24 SEP 1993 10:58:09

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IGS Electronic Report     24-SEP-1993 10:58:09       Message Number 510
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From: Dennis McCarthy
Subj: GPS Earth orientation
---------------------------

Date:     23 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   459  -1.80 -0.43          0.61  0.78
             -49241.5

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 -0.17          0.70  0.73
             -49241.5

ESOC         48794.5   455  -1.04 -0.83          1.25  1.57
             -49248.5

EMR          48830.5   373  -1.29  0.16          0.73  0.88 
             -49248.5
                       271                0.16               0.83

GFZ          48997.5   249  -0.86  0.21          0.34  0.43
             -49241.5

NOAA         48988.5   238  -1.36 -0.72          0.98  1.46
             -49245.5

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