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February 2, 2010
GRAPHICAL DISPLAY OF OPUS-RS ACCURACIES (UPDATED WEEKLY)
To know the approximate accuracy of OPUS-RS solutions as a function of
geographic location, click the following two graphs:
a) 15 minutes session accuracy
Horizontal accuracy:
http://www.ngs.noaa.gov/OPUSI/Plots/OPUSRSall-h.15-min.png
Ellipsoid height accuracy:
http://www.ngs.noaa.gov/OPUSI/Plots/OPUSRSall-u.15-min.png
b) 1 hour session accuracy
Horizontal accuracy:
http://www.ngs.noaa.gov/OPUSI/Plots/OPUSRSall-h.1-hour.png
Ellipsoid height accuracy:
http://www.ngs.noaa.gov/OPUSI/Plots/OPUSRSall-u.1-hour.png
An interactive web-based beta version is available at:
http://www.ngs.noaa.gov/OPUSI/Plots/Gmap/OPUSRS_sigmap.shtml
A brief description of how these graphs were generated can be read at:
http://www.ngs.noaa.gov/OPUSI/Plots/OPUS-RSWebPlots.pdf
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February 1, 2010
OPUS COVERAGE BY COUNTY IN JANUARY 2010
To see a plot of OPUS solutions in the US by county during January
2010 click at:
http://www.ngs.noaa.gov/OPUSI/Plots/2010-01opus.gif
To see a plot of OPUS-RS solutions in the US by county during January
2010 click at:
http://www.ngs.noaa.gov/OPUSI/Plots/2010-01opus-rs.gif
The total OPUS coverage (OPUS + OPUS-RS) by county during a period of
one year
can be seen at:
http://www.ngs.noaa.gov/OPUSI/Plots/2010-01_2009-02combined.gif
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February 1, 2010
FTP AND UFCORS STATISTICS FOR JANUARY 2010
FTP server statistics for Jan 2010
Total Requests: 1609827 (all FTP requests logged)
Total Data Transferred: 338663 MB (all files)
Requests for RINEX data: 1497230 (93% of total requests)
2010 data: 1222558 (81% of RINEX requests)
2009 data: 189670 (12% of RINEX requests)
2008 data: 12262
2007 data: 5883
2006 data: 39866 ( 2% of RINEX requests)
2005 data: 20516 ( 1% of RINEX requests)
2004 data: 1614
2003 data: 1583
2002 data: 704
2001 data: 600
2000 data: 366
1999 data: 771
1998 data: 363
1997 data: 363
1996 data: 93
1994 data: 18
Requests for daily files. Requests for hourly files.
Total: 392707 - 284038 MB Total: 1072744 - 33534 MB
Obs: 74916 - 218335 MB Obs: 36972 - 17255 MB
Nav: 0 - 0 MB Nav: 0 - 0 MB
Met: 63 - 0 MB Met: 5740 - 5 MB
Sum: 1674 - 0 MB Sum: 139 - 0 MB
Other: 316054 - 65669 MB Other: 1029893 - 16272 MB
Requests for ephemerides files.
IGR: 658 - 56 MB
IGS: 576 - 44 MB
IGU: 286 - 45 MB
Brdc: 30239 - 1656 MB
Other files: 20 - 0 MB
Requests from top 10 hosts (% of RINEX requests):
perceus.hpc.usu.edu: 763189 (50%) - 12221 MB ( 3%)
ttc-tps.topconps.org: 134696 ( 8%) - 7722 MB ( 2%)
matara.ucar.edu: 109232 ( 7%) - 2252 MB ( 0%)
icap2.nict.go.jp: 57973 ( 3%) - 18835 MB ( 5%)
tokonda.ucar.edu: 57661 ( 3%) - 1228 MB ( 0%)
sedna.unibe.ch: 52158 ( 3%) - 808 MB ( 0%)
atlas.haystack.edu: 49821 ( 3%) - 38995 MB (12%)
cetus.cosmic.ucar.edu: 48867 ( 3%) - 1777 MB ( 0%)
carina1.cosmic.ucar.edu: 48238 ( 3%) - 1744 MB ( 0%)
oasis4.nbmg.unr.edu: 31841 ( 2%) - 10485 MB ( 3%)
d206-088.geology.wisc.edu: 25051 ( 1%) - 8205 MB ( 2%)
Total: 1378727 (92%) - 104279 MB (32%)
Unique hosts: 3199 - 338663 MB
Hosts with
1 request: 1184 (37%) - 2128 MB ( 0%)
2-100 requests: 1846 (57%) - 35371 MB (10%)
101-1000 requests: 108 ( 3%) - 39410 MB (11%)
1001-10000 requests: 47 ( 1%) - 147236 MB (43%)
over 10000 requests: 14 ( 0%) - 114517 MB (33%)
Plots for "user friendly" CORS (UFCORS) requests for last month are
available at
the following Web address:
http://www.ngs.noaa.gov/CORS-Proxy/UfcorsLogStatistics/corsstatisticsv3?month=Jan&year=2010
Month by month statistics can be viewed at:
http://www.ngs.noaa.gov/CORS-Proxy/UfcorsLogStatistics/corsstatisticsv3?month=All&year=2010
http://www.ngs.noaa.gov/CORS-Proxy/UfcorsLogStatistics
A graphic display of FTP and UFCORS activity is available at:
http://www.ngs.noaa.gov/OPUSI/Plots/CORS.jpg
