[IGSMAIL-7055] Combined repro2 SINEX solutions available

[Paul Rebischung]

Author: Paul Rebischung

Dear Colleagues,

The daily and weekly combined SINEX files from the IGS 2nd reprocessing campaign (repro2), which constitute the IGS contribution to ITRF2014, are now available at:
ftp://igs-rf.ensg.eu/pub/repro2

The repro2 SINEX combination products cover the period from GPS week 730 (January 2, 1994) to GPS week 1831 (February 14, 2015). Each weekly directory contains the following files:
* ig2yyPwwww[0-6]_all.[snx,ssc] : daily combined SINEX solutions
* ig2yyPwwww[0-6].[snx,ssc] : daily combined SINEX solutions (stations without DOMES numbers removed)
* ig2yyPwwww[0-6].res : residuals between the daily AC solutions and the daily combined solutions
* ig2yyPwwww[0-6]_ITR.res : residuals between the daily AC solutions and IGb08
* ig2yyPwwww[0-6]_all.[snx,ssc] : weekly combined SINEX solutions 
* ig2yyPwwww.[snx,ssc] : weekly combined SINEX solutions (stations without DOMES numbers removed)
* ig2yyPwwww.erp : combined Earth orientation parameters
* ig2yyPwwww.sum : combination summary
All these files will be made available at the IGS data centers in the coming days.

A number of time series are available at the same location, in the following directories:
* coord : time series of combined station coordinates
* res : time series of AC-combined station position residuals
* gcres : time series of AC-combined geocenter residuals
* erp : time series of AC-combined Earth orientation parameter residuals
* sum : time series of statistics extracted from the weekly combination summaries

The repro2 SINEX combination products are based on the following AC contributions:
* COD:
  - 0730_0 to 1772_6 : cf2 solutions included with weight
  - 1773_0 to 1831_6 : cof solutions included with weight
* EMR:
  - 0769_0 to 1785_6 : em2 solutions included with weight
  - 1786_0 to 1831_6 : emr solutions included with weight
* ESA:
  - 0782_0 to 1788_6 : es2 solutions included with weight
  - 1789_0 to 1831_6 : esa solutions included with weight
* GFZ:
  - 0730_0 to 1720_6 : gf2 solutions included for comparison only
  - 1721_0 to 1827_6 : gf2 solutions included with weight
  - 1828_0 to 1831_6 : gfz solutions included with weight
* GRG:
  - 0938_4 to 1825_3 : grc solutions included for comparison only
    (The "grc"products are not yet available at the IGS data centres but will soon replace the current "gr2" products.)
  - 1825_4 to 1831_6 : grg solutions included for comparison only
* GTZ:
  - 0730_0 to 1720_6 : gt2 solutions included with weight
* JPL:
  - 0730_0 to 1815_6 : jp2 solutions included with weight
  - 1816_0 to 1831_6 : jpl solutions included with weight
* MIT:
  - 0730_0 to 1803_6 : mi2 solutions included with weight
  - 1804_0 to 1831_6 : mit solutions included with weight
* ULR:
  - 0782_0 to 1773_1 : ul2 solutions included with weight
  - 1773_2 : ul2 solution excluded
  - 1773_3 to 1825_2 : ul2 solutions included for comparison only
  - 1825_3 : ul2 solution excluded
We thank all contributing ACs for the huge efforts they put into the re-analysis of more than 20 years of GNSS data.

Detailed description of the combination procedure and analysis of the combination results will be published in a forthcoming journal article.

Best regards,

Paul Rebischung