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[IGSREPORT-1125] Wk 0759 GPS Earth Orientation
- Subject: [IGSREPORT-1125] Wk 0759 GPS Earth Orientation
- From: Dennis McCarthy
- Date: Thu, 28 Jul 1994 11:31:10 PDT
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IGS Electronic Report Thu Jul 28 11:31:10 PDT 1994 Message Number 1125
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Author: Dennis McCarthy
Subject: Wk 0759 GPS Earth Orientation
From: Dennis McCarthy
Subject: Preliminary look at GPS Earth orientation
Date: 28 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 48780.5 766 -1.51 -1.50 0.81 0.86
-49549.5
CODE 48792.5 763 0.15 -1.14 -0.50 0.64 0.77 2.52
-49554.5
JPL 48794.5 724 0.02 -1.34 0.60 0.65
-49549.5
ESOC 48794.5 756 -0.20 -1.69 1.02 1.24
-49549.5
NRCan 48830.5 681 -0.04 -0.75 0.57 0.73
-49556.5
534 0.35 0.99
GFZ 48997.5 564 -0.40 -1.45 0.35 0.37
-49556.5
NOAA 48988.5 556 -0.48 -1.45 1.09 1.25
-49558.5
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 49519.5 -0.72 -1.23 0.49 0.56
-49549.5
CODE 49525.5 0.07 -1.13 -4.22 0.22 0.24 0.06
-49554.5
JPL 49520.5 -0.09 -1.76 0.46 0.65
-49550.5
ESOC 49520.5 0.04 -1.73 0.43 0.38
-49549.5
NRCan 49527.5 -0.19 -1.27 0.35 0.30
-49556.5
49527.5 2.56 0.18
-49556.5
GFZ 49527.5 -0.54 -1.18 0.20 0.28
-49556.5
NOAA 49529.5 0.01 -1.23 0.63 0.62
-49558.5
--
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>]