[IGSREPORT-11216] Wk 1264 SIO Analysis Report

[SIO GPS Processing]

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IGS Electronic Report   14 Apr 00:37:12 PDT 2004      Message Number 11216
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Authors: Paul Jamason, Linette Prawirodirdjo, Peng Fang and Yehuda Bock

 SOPAC Global/Regional Analysis Bulletin -- GPS Week 1264

Submitted by: Paul Jamason, Linette Prawirodirdjo, Peng Fang and Yehuda Bock
              Scripps Orbit and Permanent Array Center
              Institute of Geophysics and Planetary Physics
              Scripps Institution of Oceanography
              University of California, San Diego
              La Jolla, CA 92093-0225 USA
              e-mail: gpsproc at josh.ucsd.edu
              fax: (858) 534-9873
              tel: (858) 822-4472 

To access SIO GARNER archive:
 ftp garner.ucsd.edu
 login: anonymous
 password: your email
 directories: pub/products, pub/hfiles

To view SOPAC time series on the web:
 http://sopac.ucsd.edu/scripts/dbTimeseriesSites.cgi

Direct problems to: gpsproc at josh.ucsd.edu
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           S O P A C   A N A L Y S I S   L O G  2004/04/14 00:30




 GPS WEEK #1980         00/00/0 - 00/00/0           DOY  - DOY      
                                                              Day Number   
                                                          
                              SIO  IGS  TYPE OF           
SITE_NAME                     CODE CODE RECEIVER          


                                                                                
* Tightly constrained to the IGS realization of ITRF97 (IGS97)
+ Coordinates are treated as stochastic parameters;           
  All other coordinates are constrained to 10 m in all components    
                                                                                
Earth Rotation Parameters:


Orbit overlap:

DAY#
        alo/crs/rad   alo/crs/rad   alo/crs/rad   alo/crs/rad   alo/crs/rad   alo/crs/rad   alo/crs/rad   
Note: Along track, cross track, and radial components (in meters) from 16 hours of orbital overlap with
      previous day. Zero values indicate no overlap available.
      * indicates that the satellite is in eclipse sometime during that day.

California station statistics for GPS Week #1264
(repeatability with respect to IGB00)

  Stations    enu  S#   #    mean length   sig    wrms  nrms
                                 (m)       (m)    (mm)  (-)

S# = session number, # = number of daily solutions
sig = standard deviation of weighted mean (unscaled)
wrms = weighted root mean square error (repeatability)
nrms = normalized rms (can be used to scale sig)
_____________________________________________________________________________
Remarks:  (1) IGS and regional data are analyzed with the GAMIT software
              using a two-tier (global and regional) distributed processing
              scheme. The global data are analyzed in one or more subnetworks
              and combined using the GLOBK software to compute precise orbits.
              These are tightly constrained in separate GAMIT solutions:
                (1) California regional SCIGN (ambiguities fixed)
                (2) California regional BARD (ambiguities fixed)
                (3) North America CORS (ambiguities free)
                (4) Western Europe EURA (ambiguities free).   
              The weekly solution reported here is generated by GLOBK,
              combining all global and regional daily solutions. 
          (2) The site coordinate repeatabilities reported in this newsletter
              are the direct results of the GLOBK adjustment. We then apply
              a filter to remove a common-mode position error from the
              California sites. The filtered series are available through
              the SOPAC Home Page at:
              http://sopac.ucsd.edu/scripts/dbSCIGNTimeseries.cgi
          (3) SCIGN - Southern California Integrated GPS Network
              BARD - Bay Area Regional Deformation Array (Northern California)
              CORS - Continuously Operating Reference Stations (United States)