[IGSMAIL-3930]: Site log changeover

[Angelyn Moore]

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IGS Electronic Mail      10 Jun 23:14:57 PDT 2002      Message Number 3930
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Author: Angelyn Moore

Dear IGS Colleagues,

We're almost ready to change to the new site log format and
add IGLOS-PP GPS/GLONASS stations to the IGS network.

Data Centers may provide mixed GPS/GLONASS RINEX files in
the IGS directories beginning June 11.  If you are not certain
your software can smoothly handle GLONASS data, please visit
http://igscb.jpl.nasa.gov/newformats.html for an example file
to try, and a link to one way of producing a GPS-only RINEX file
from a mixed one, should you find that necessary.  If you 
require more information on this subject please let us know.

The new format GPS site logs are presently in
ftp://igscb.jpl.nasa.gov/pub/station/newformatlogs/

The SINEX template made from them is in
ftp://igscb.jpl.nasa.gov/pub/station/general/draft.igs.snx

The errors found are in 
ftp://igscb.jpl.nasa.gov/pub/station/general/draft.igs.snx.err

Resolution of these few remaining questions is being
actively pursued.  I have carefully compared the draft.igs.snx
vs. today's igs.snx file and I believe users will find the 
version based on the new site logs of even higher quality.

The IGLOS logs received to date are in
ftp://igscb.jpl.nasa.gov/pub/station/iglos_log_submissions

The SINEX template made from them is in
ftp://igscb.jpl.nasa.gov/pub/station/general/iglos.snx

The errors found are in 
ftp://igscb.jpl.nasa.gov/pub/station/general/iglos.snx.err

This IGLOS error file is larger than I had hoped; however some
important clarification of equipment model names is expected
tomorrow.  This will resolve most of the issues.

To summarize what happens tomorrow:

   The logs in 
     ftp://igscb.jpl.nasa.gov/pub/station/newformatlogs/ 
   and the logs with no serious errors in
     ftp://igscb.jpl.nasa.gov/pub/station/iglos_log_submissions
   become the official IGS logs in 
     ftp://igscb.jpl.nasa.gov/pub/station/log/

   The SINEX template ftp://igscb.jpl.nasa.gov/pub/station/igs.snx
   becomes essentially a combination of
     ftp://igscb.jpl.nasa.gov/pub/station/general/draft.igs.snx
   and 
     ftp://igscb.jpl.nasa.gov/pub/station/general/iglos.snx

   Things like maps, station lists, etc. begin to be based on
   the new log set.

   Mixed GPS/GLONASS RINEX data may start to appear in IGS 
   directories anytime after tomorrow.

Monitoring of the site log set and collaboration with the site 
operators to continually improve the quality and clarity of the
information (of course) continues.

Site operators who have kindly responded with updated logs and
answers to questions deserve many thanks, as always!  I know many
of you are continuing to review the converted logs against your
own archived information over time, and we'll try to assist with 
any additions, clarifications, or questions that arise.

Analysts and users deserve thanks in advance as well, because this 
change will probably require some extra attention.  If you find any
problem that we don't seem to be resolving, please don't hesitate
to email igscb at igscb.jpl.nasa.gov to inform us.

Best regards,
Angie
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Angelyn W. Moore, Ph.D.          Deputy Director, IGS Central Bureau 
 JPL/Caltech                             Angelyn.W.Moore at jpl.nasa.gov
 4800 Oak Grove Dr. MS 238-540                 voice: +1 818 354 5434 
 Pasadena CA 91109 USA http://igscb.jpl.nasa.gov fax: +1 818 393 6686