[IGSREPORT-3342] Wk 0886 SIO Analysis Report

[P.]

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IGS Electronic Report    Sat Jan 11  8:55:01 PST 1997      Message Number 3342
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Author: P. Fang and Y. Bock 
Subject: Wk 0886 SIO Analysis Report

 SOPAC Global/Regional Analysis Bulletin -- GPS Week 0886

Submitted by: 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: pfang at ucsd.edu; bock at pgga.ucsd.edu
              fax: (619) 534-9873
              geodesy lab tel: (619) 534-7692 

To access SIO GARNER archive:
 ftp lox.ucsd.edu (132.239.152.86)
 login: anonymous
 password: your name
 directories: pub/products, pub/hfiles

To view SOPAC time series:
 WWW Home page URL: http://lox.ucsd.edu
 click: SCIGN/SCIGN Map/site

Direct problems to: Peng Fang (pfang at ucsd.edu)
______________________________________________________________________________
    S O P A C   A N A L Y S I S   L O G
                                                                                
                                                                                
                                                                                
 GPS WEEK #0000           01/06/80 - 01/06/80             DOY 006 - DOY 006     
                                                              Day Number        
                                                          0  0  0  0  0  0  0   
                              SIO  IGS  TYPE OF           0  0  0  0  0  0  0   
SITE_NAME                     CODE CODE RECEIVER          6  0  0  0  0  0  0   
                                                                                

global:
                                                                                
* Tightly constrained to ITRF94 coordinates              
+ PGGA/DGGA/BARD 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 #0886
(repeatability with respect to ITRF94 reference frame)

  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 of up
              to four regional subnetworks:
                (1) California regional PGGA/BARD (ambiguities fixed)
                (2) Los Angeles Basin DGGA (ambiguities fixed)
                (3) North America CORS (ambiguities free)
                (4) Western Europe (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 (http://toba.ucsd.edu),
              under SCIGN/SCIGN Map (click on site of interest).
          (3) SCIGN - Southern California Integrated GPS Network
              PGGA - Permanent GPS Geodetic Array (Southern California)
              DGGA - Dense GPS Geodetic Array (Los Angeles Basin)
              BARD - Bay Area Regional Deformation Array (Northern California)
              CORS - Continuously Operating Reference Stations (United States)

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[Mailed From: pfang at lox.ucsd.edu]