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Name Last modified Size Description
Parent Directory - 1996/ 24-Apr-2004 17:19 - 1997/ 24-Apr-2004 18:12 - 1998/ 26-Apr-2004 18:25 - 1999/ 28-Apr-2004 11:46 - 2000/ 28-Apr-2004 21:45 - 2001/ 05-May-2004 14:47 - 2002/ 11-May-2004 15:14 - 2003/ 30-May-2004 16:31 - 2004/ 30-Dec-2004 19:49 - 2005/ 31-Dec-2005 17:16 - 2006/ 30-Dec-2006 18:49 - 2007/ 31-Dec-2007 17:46 - 2008/ 31-Dec-2008 17:05 - 2009/ 31-Dec-2009 17:40 - 2010/ 07-Sep-2010 17:40 - campaign/ 23-Oct-2009 16:13 - incoming/ 12-Jul-2010 12:22 - mexico/ 23-Dec-2009 19:23 - nepal/ 16-Apr-2010 12:03 - recent/ 03-Sep-2010 01:23 -
Recently rinexed files can be found zipped in /pub/data/recent, sorted by site.
Files are named as follows:
siteddds.yyo.zip
Where:
site is 4-char ID (may not be unique)
ddd is day of year (001-366)
s indicates sampling interval using bastardized roman numerals:
"i" 1 second
"v" 5 second
"x" 10 second
"y" 15 second
"0" 30 second
Also there is a corresponding file ending in .yyS that is the summary file from
teqc (http://www.unavco.org/facility/software/teqc/teqc.html). "SUMMARY"
summarizes the "SUM" line of these summaries (you may need to expand your screen
to show table without lines wrapping).
Files cover 24 hours. Therefore they may be very large. Surveyors may find it
more convenient to download hourly files from the original data provider, the
NGS, or try looking in /pub/data/incoming.
The global broadcast ephemeris file ("brdc...") can be found under
/pub/data/<yyyy>/<ddd>/nav. It can be renamed and used as .nav file. This is
the same as the file distributed by the NGS or SOPAC.
Files are archived as space allows at their original rate and permanently
at 30 second sampling interval (note that I have not fixed the
"time of first observation" in the headers of the decimated files).
In order to minimize disk space needed, rinex files undergo two stage
compression before being archived under /pub/data/<yyyy>/<ddd>/<sampling rate> .
Files will look something like this:
thun015i.05d.bz2
where "d" indicates hatanaka (compact rinex, or crinex) format.
To extract, first use "bunzip2 <file>" (available on most unix type systems).
On windows, use an extractor that supports bzip2; I recommend 7zip:
http://www.7-zip.org/
The utility to convert crinex to rinex (crx2rnx) can be found at:
http://sopac.ucsd.edu/dataArchive/hatanaka.html
or:
http://ngs.woc.noaa.gov/CORS/Utilities
Finally, if you are using a Windows machine, you may need to run unix2dos on the file.
The one remaining problem I have run into when attempting to import rinex into Trimble
Geomatics Office is that older versions of this software do not recognize Rinex v 2.11.
In this case simply changing the "2.11" in the header to "2.1 " (remember to add a space)
may work.
Questions/comments can be sent to minera at geology.cwu.edu.