Date: Mon, 12 Jun 2000 11:37:24 -0700 (PDT)
From: Michael B Heflin <mbh@cobra.jpl.nasa.gov>
Message-Id: <200006121837.LAA25788@dunsinane.jpl.nasa.gov>
To: IGSMAIL@IGSCB.JPL.NASA.GOV
Subject: [IGSMAIL-2883]: GPS Time Series Update
Sender: owner-igsmail
Precedence: bulk

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IGS Electronic Mail      12 Jun 11:37:26 PDT 2000      Message Number 2883
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Author: Michael B. Heflin

Updated time series for IGS, SCIGN, CORS, and NBAR sites are available at URL:

http://sideshow.jpl.nasa.gov/mbh/series.html

Recent improvements include:

 1.  Long time span - more than 9 years for some sites
 2.  Best ever agreement with VLBI - 0.9 mm/yr N, 0.9 mm/yr E, and 2.0 mm/yr V
 3.  Numerical time series, positions, and velocities available via ftp
 4.  Consistent reference frame for all results - ITRF97 
 5.  New position and velocity estimates
 6.  Geocenter and scale time series
 7.  Polar motion and length of day estimates
 8.  Updated maps