From Yehuda Tue Aug 25 17:24:30 1992 From: Yehuda (Yehuda) Date: 25 AUG 1992 17:24:30 Subject: [IGSMAIL-79] Scripps data archive back on line Message-ID: *********************************************************************** IGS Electronic Mail 25-AUG-1992 17:24:30 Message Number 79 *********************************************************************** ============================================================================== THIS FILE CONTAINS 2 MESSAGES ============================================================================== >From: Yehuda Bock Subject: Scripps data archive back on line --------------------------------- The Scripps data archive is back on line. Retrieval of data is the same as before. Please notify us immediately if any problems are encountered. Sorry for any inconvenience. -- Yehuda Bock ============================================================================== >From: Dennis McCarthy Subject: Preliminary look at GPS Earth orientation ------------------------------------------ Date: 24 August 1992 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 U. of Texas 48794.5 49 -0.78 -2.69 1.36 1.84 -48842.5 Scripps 48780.5 68 -1.04 -1.66 0.65 0.50 -48848.5 U. of Berne 48792.5 8 -0.38 0.19 -1.50 1.64 1.72 0.14 (ITRF90) -48799.5 U. of Berne 48800.5 43 -0.47 0.30 -0.22 0.74 0.98 0.30 (ITRF91) -48842.5 JPL 48794.5 46 -1.38 0.11 0.71 1.04 -48841.5 GFZ 48795.0 34 1.21 1.90 2.26 2.56 -48828.5 ESOC 48794.5 51 -1.31 0.87 1.37 2.57 -48849.5 Plots are available by FAX to anyone interested. Regards, Dennis McCarthy dmc at maia.usno.navy.mil