[IGSREPORT-3062] Wk 0874 GPS Earth Orientation
Dennis
Dennis
Tue Oct 15 11:05:34 PDT 1996
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IGS Electronic Report Tue Oct 15 11:05:34 PDT 1996 Message Number 3062
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Author: Dennis McCarthy
Subject: Wk 0874 GPS Earth Orientation
From: Dennis McCarthy
Subject: Preliminary look at GPS Earth orientation
Date: 10 October 1996
An updated look at Earth orientation data submitted to the IERS
follows. Data reduced in the ITRF93 have been used where available.
Means refer to the ITRF93 for all contributors. 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 1553 -0.50 0.09 0.99 0.71
-50354.5
CODE 48792.5 1570 0.21 0.24 -6.80 0.42 0.57 7.37
-50361.5
JPL 48794.5 1435 0.05 -0.10 0.32 0.36
-50354.5
49648.5 701 -1.19 0.96
-50354.5
ESOC 48794.5 1560 0.12 -0.15 0.72 0.93
-50354.5
NRCan 48830.5 1485 0.25 0.32 0.40 0.82
-50361.5
1337 3.34 2.76
GFZ 48997.5 1369 0.01 0.13 0.27 0.31
-50361.5
NOAA 48988.5 1360 -0.11 0.24 0.79 0.89
-50362.5
USNO 49676.5 678 0.19 -0.10 0.31 0.35
-50361.5
Plots of the residuals are available by FAX to anyone interested.
Below is the same information as above provided for only the
last thirty data points sent by each contributor.
Contributor Data Span Mean Standard Deviation
(NEOS-GPS)
x y UT1-UTC x y UT1-UTC
Scripps 50325.5 0.14 -0.22 0.23 0.23
-50354.5
CODE 50332.5 0.24 -0.21 -21.85 0.08 0.17 0.11
-50361.5
JPL 50325.5 0.31 -0.31 0.03 0.15 0.18 0.15
-50354.5
ESOC 50325.5 0.19 -0.68 0.23 0.24
-50354.5
NRCan 50332.5 0.34 -0.62 7.30 0.13 0.18 0.18
-50361.5
GFZ 50332.5 0.07 -0.46 0.09 0.12
-50361.5
NOAA 50333.5 0.24 -0.53 0.31 0.45
-50362.5
USNO 50333.5 0.07 -0.44 0.18 0.22
-50361.5
--
Dennis D. McCarthy dmc at maia.usno.navy.mil
Director, Directorate of Time phone: (202) 762-1837
U.S. Naval Observatory fax: (202) 762-1563
Washington, DC 20392-5420
[Mailed From: Dennis McCarthy <dmc at Maia.usno.navy.mil>]
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