[IGSREPORT-558] Preliminary look at GPS Earth orientation

[Dennis]

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IGS Electronic Report     22-OCT-1993 16:56:23       Message Number 558
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>From:     Dennis McCarthy
Subject:  Preliminary look at GPS Earth orientation
Date:     21 October 1993
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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   480  -1.77 -1.53          0.65  0.82
             -49262.5

CODE(ITRF91) 48800.5   466  -0.70 -1.81  -4.36   0.82  0.94  1.48
             -49265.5

JPL          48794.5   444  -0.78 -1.27          0.71  0.76
             -49269.5

ESOC         48794.5   476  -0.98 -1.89          1.23  1.54
             -49269.5

EMR          48830.5   401  -1.22 -0.94          0.71  0.81
             -49276.5
                       289               -0.02               0.80

GFZ          48997.5   277  -0.74 -0.85          0.39  0.40
             -49269.5

NOAA         48988.5   256  -1.12 -1.76          1.04  1.41
             -49263.5

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

Regards,

Dennis McCarthy
  dmc at maia.usno.navy.mil

--
Dennis D. McCarthy                       dmc at maia.usno.navy.mil
Chief Earth Orientation Parameters       phone: (202) 653-0066
U.S. Naval Observatory                   fax: (202) 653-0587
Washington, DC 20392-5100