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[IGSREPORT-1105] Wk 0758 GPS Earth Orientation
- Subject: [IGSREPORT-1105] Wk 0758 GPS Earth Orientation
- From: Dennis McCarthy
- Date: Thu, 21 Jul 1994 10:49:05 PDT
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IGS Electronic Report Thu Jul 21 10:49:05 PDT 1994 Message Number 1105
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Author: Dennis McCarthy
Subject: Wk 0758 GPS Earth Orientation
From: Dennis McCarthy
Subject: Preliminary look at GPS Earth orientation
Date: 21 July 1994
An updated look at Earth orientation data submitted to the IERS
follows. Data reduced in the ITRF92 have been used where available.
Means refer to the ITRF92 for those contributors who have reported
estimates in the ITRF92 (CODE, ESOC, EMR, JPL, and GFZ). 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 48780.5 752 -1.52 -1.51 0.81 0.86
-49535.5
CODE 48792.5 755 0.15 -1.14 -0.46 0.64 0.77 2.51
-49546.5
JPL 48794.5 717 0.03 -1.34 0.60 0.65
-49542.5
ESOC 48794.5 749 -0.20 -1.69 1.02 1.24
-49542.5
NRCan 48830.5 674 -0.04 -0.74 0.57 0.73
-49549.5
527 0.32 0.96
GFZ 48997.5 557 -0.40 -1.45 0.35 0.37
-49549.5
NOAA 48988.5 548 -0.48 -1.45 1.09 1.26
-49550.5
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 49505.5 -0.93 -1.26 0.80 0.66
-49535.5
CODE 49517.5 0.00 -1.22 -4.19 0.22 0.31 0.07
-49546.5
JPL 49513.5 -0.05 -1.72 0.48 0.65
-49542.5
ESOC 49513.5 0.18 -1.61 0.46 0.37
-49542.5
NRCan 49520.5 -0.11 -1.18 0.33 0.32
-49549.5
49520.5 2.40 0.25
-49549.5
GFZ 49520.5 -0.53 -1.14 0.30 0.28
-49549.5
NOAA 49521.5 0.28 -1.01 0.64 0.73
-49550.5
--
Dennis D. McCarthy dmc @ maia.usno.navy.mil
Head, Earth Orientation Department phone: (202) 653-0066
U.S. Naval Observatory fax: (202) 653-0587
Washington, DC 20392-5420
[Mailed From: Dennis McCarthy <dmc @ Maia.usno.navy.mil>]