OPUS COVERAGE BY COUNTY & FTP AND UFCORS STATISTICS FOR APRIL 2009

May 4, 2009

OPUS COVERAGE BY COUNTY IN APRIL 2009

To see a plot of OPUS solutions in the US by county during April 2009
click at:
                
        http://www.ngs.noaa.gov/OPUS/Plots/2009-04opus.gif
                        
To see a plot of OPUS-RS solutions in the US by county during April 2009
click at:
                
        http://www.ngs.noaa.gov/OPUS/Plots/2009-04opus-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/OPUS/Plots/2009-04_2008-05combined.gif

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May 4, 2009

FTP AND UFCORS STATISTICS FOR APRIL 2009

FTP server statistics for Apr 2009
Total Requests: 1093819 (all FTP requests logged)
Total Data Transferred: 433821 MB (all files)

Requests for RINEX data: 964747 (88% of total requests)
2009 data: 343969 (35% of RINEX requests)
2008 data: 10109 ( 1% of RINEX requests)
2007 data: 85041 ( 8% of RINEX requests)
2006 data: 147155 (15% of RINEX requests)
2005 data: 147969 (15% of RINEX requests)
2004 data: 140358 (14% of RINEX requests)
2003 data: 44218 ( 4% of RINEX requests)
2002 data: 34372 ( 3% of RINEX requests)
2001 data: 3369
2000 data: 7534
1999 data: 356
1997 data: 271
1996 data: 25
1995 data: 1

Requests for daily files. Requests for hourly files.
Total: 818063 - 400595 MB Total: 112794 - 8402 MB
Obs: 89572 - 221086 MB Obs: 12481 - 6895 MB
Nav: 0 - 0 MB Nav: 0 - 0 MB
Met: 123 - 0 MB Met: 3838 - 3 MB
Sum: 1083 - 0 MB Sum: 520 - 0 MB
Other: 727285 - 179486 MB Other: 95955 - 1500 MB

Requests for ephemerides files.
IGR: 520 - 42 MB
IGS: 550 - 42 MB
IGU: 347 - 48 MB
Brdc: 32462 - 1592 MB

Other files: 11 - 0 MB


Requests from top 10 hosts (% of RINEX requests):
d206-088.geology.wisc.edu: 399269 (41%) - 121032 MB (29%)
ttc-tps.topconps.org: 190557 (19%) - 14828 MB ( 3%)
atlas.haystack.edu: 69034 ( 7%) - 66144 MB (16%)
sedna.unibe.ch: 48389 ( 5%) - 836 MB ( 0%)
cetus.cosmic.ucar.edu: 32800 ( 3%) - 1022 MB ( 0%)
matara.ucar.edu: 28365 ( 2%) - 572 MB ( 0%)
adulis.ucar.edu: 28176 ( 2%) - 566 MB ( 0%)
tokonda.ucar.edu: 27908 ( 2%) - 567 MB ( 0%)
icap1.nict.go.jp: 22691 ( 2%) - 7346 MB ( 1%)
icap2.nict.go.jp: 22177 ( 2%) - 7220 MB ( 1%)
geostor01.ucsd.edu: 17024 ( 1%) - 5276 MB ( 1%)

Total: 886390 (91%) - 225412 MB (54%)

Unique hosts: 3403 - 433821 MB

Hosts with
1 request: 1231 (36%) - 1142 MB ( 0%)
2-100 requests: 2010 (59%) - 34765 MB ( 8%)
101-1000 requests: 109 ( 3%) - 36581 MB ( 8%)
1001-10000 requests: 39 ( 1%) - 125794 MB (28%)
over 10000 requests: 14 ( 0%) - 235537 MB (54%)

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=Apr&year=2009

Month by month statistics can be viewed at:

http://www.ngs.noaa.gov/CORS-Proxy/UfcorsLogStatistics/corsstatisticsv3?month=All&year=2009

http://www.ngs.noaa.gov/CORS-Proxy/UfcorsLogStatistics