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============================================
NOAA-NOS-NGS-CORS Weekly Newsletter
Created On UTC Date: Wed Jun 19 18:19 2013
============================================
The "CORS Newsletter" is a weekly summary of information about NOAA's National
Geodetic Survey's(NGS) Continuously Operating Reference Station (CORS) Program.
The newsletter is made up of 5 sections
A. Changes to CORS products and services
B. General news on activities that impact the CORS program
C. Publications related to the CORS program
D. Statistics for CORS products and services
E. List of partners in the CORS network
Instructions to Subscribe/Unsubscribe are at the bottom of the newsletter
Questions about the newsletter should be sent to ngs.cors.news @ noaa.gov
CORS Web Sites: http://geodesy.noaa.gov/CORS
http://alt.ngs.noaa.gov/CORS
==========================================================================================
==========================================================================================
A. CHANGES TO CORS PRODUCTS AND SERVICES
-----------------------------------------------
Tuesday January 8, 2013
RELEASED REVISED CORS SITE GUIDELINES
Update Guidelines for establishing and operating CORS sites have been released today.
The main change reflects a new minimum spacing requirement of 70 km to nearby CORS. The
rest of the changes are mostly clarifications or corrections to existing requirements.
http://www.ngs.noaa.gov/CORS/Establish_Operate_CORS.shtml
Any questions about these guidelines should be sent to ngs.proposed.cors @noaa.gov
==========================================================================================
==========================================================================================
B. GENERAL NEWS ON ACTIVITIES THAT IMPACT THE CORS PROGRAM
---------------------------------------------------------------------------
FROM THE NEWS
House Committee Makes Deeper Cuts to FY14 GPS Budget
BY: DEE ANN DIVIS
Inside GNSS
18 June 2013
The House Appropriations Committee has made a series of cuts to GPS programs
that, if agreed to by the Senate, suggest an overall slowdown in the pace
of GPS modernization.
While lawmakers on the House Authorization Committee agreed to the full
amount of each of the president's GPS-related requests, their counterparts
on the Appropriations Committee cut a total of just over 9 percent from
the total budget request for GPS spacecraft, ground systems, and user
equipment.
The biggest cut came in the GPS Block III satellite program where committee
members slashed $44.167 million or 60 percent from advance procurement
for the 9th and 10th spacecraft. The original request for fiscal year
2014 (FY14) was for $74.167 million.
If approved by the Senate, the reduction in the total FY14 budget for
nearer-term and advanced satellite procurement would drop spending from
$477.598 million down to $433.431 million. That is a far cry from the
$492.910 million requested and approved for FY13.
The reason given for the advanced procurement squeeze was that the money
was requested "ahead of need," according to a draft of the report that
accompanies the appropriations bill.
The report gives the same reason for shaving $15 million from the
$221.276 requested for Research, Development, Testing and Evaluation
(RTD&E). Although the reduction to the research budget is much smaller,
it may provide greater insight into the program's future.
GPS program managers are currently looking at a wide range of changes
aimed at substantially reducing the constellation's overall cost. They
have already revised upward by an average of two years their estimates
of the useful life of the current operational satellites -- thereby
enabling the program to slow replacement of the aging spacecraft already
on orbit.
Nibbling Away
The managers are also looking at a fundamental redesign of the satellites,
scaling them back to a stripped-down form that would no longer carry the
nuclear detection payload. These lean NavSats or NibbleSats (named because
they incorporate a collection of small changes that "nibble" away the
cost problem) could be launched in clusters of two to four spacecraft.
The lean NavSats might carry fewer signals and would likely incorporate
a variety of new technology that would improve the power efficiency
thereby cutting the heat generated and the need for shielding -- cutting
the cost of each spacecraft. RTD&E funding supports research that matures
such technologies and helps reduce the risk of incorporating them into
the program
One of the key changes to be specifically funded by the FY14 RTD&E money
is research supporting dual launch -- the ability to launch two GPS satellites
at a time. Dual launch, which will require changes to both the spacecraft
and the launch vehicle, is critical to maintaining the capabilities of
the constellation, sources have told Inside GNSS.
Fortunately the committee's cuts were not altogether unexpected, said a
GPS insider who is familiar with the budget wrangling.
"There was some anticipation is that this could happen -- so there were
some adjustments made to accommodate it," the expert said.
Even so, the cuts pose a risk that the first flight of GPS III could be
postponed, the source said, which means that the opportunity to do on-orbit
testing would be delayed. That, in turn, could mean that additional
GPS III satellites could be built before the first one is tested -- leaving
no opportunity to incorporate fixes during construction of those spacecraft.
"Because there are so many potential technical issues, especially on the
[new ground segment], everyone wants breathing room," said the expert.
"They want to get [the launch] done as soon as possible."
Unfortunately, the FY14 budget for ground segment was also cut. The
money for the Next Generation GPS Operational Control System (OCX) was
reduced by $18 million because the committee felt there was "excessive
growth in FFRDC support."
FFRDCs or Federally Funded Research and Development Centers, are nonprofit
research organizations funded by the government to support federal
programs. The MITRE Corporation and The Aerospace Corporation support the
GPS Directorate, which acts as a system integrator between the ground
and space segments.
Even though the overall cut was relatively small, the GPS Directorate
"won't work as well without that kind of (FFRDC) support," said another
insider, "It is an absolutely necessary function."
----------------------------------------------------------------------------
AFSPC Tests GPS Civil Signals L2C and L5
AFSPC Press Release
14 June 2013
As part of the GPS Modernization effort, the Space and Missile Systems
Center, Global Positioning Systems Directorate (SMC/GP) will execute Civil
Navigation (CNAV) message testing in June 2013 and will execute similar
tests at least annually.
SMC/GP has drafted their test plan and incorporated inputs from vendors,
civil agencies, and the user community. SMC/GP will conduct live-sky
CNAV testing with non-operational signals prior to deployment of the Next
Generation Operational Control System (OCX) to ensure readiness for
transition to operations and enterprise-level readiness to broadcast the
modernized GPS open-service signals, L2C and L5. The current GPS operational
control system, Architecture Evolution Plan, does not support generation
of CNAV messages but OCX will provide this capability when it comes online
in 2016. To support CNAV testing, SMC/GP has developed offline test tools
to generate CNAV messages for upload to the operational IIR-M and IIF
satellites. This capability allows the program office to mitigate development
risk and ensure readiness of next-generation modernized Signal-In-Space (SIS)
capabilities. Periodic test broadcasts will support user equipment development
and early compatibility evaluation and present an opportunity for early
operational use.
Day-to-day operations of the GPS constellation are conducted by the
2nd Space Operations Squadron. Officials anticipate no impact to operational
users throughout the testing period.
In 2008, the US government announced a sunset date of December 31, 2020
for support of GPS semi-codeless P(Y)-code users and encouraged transition
to L2C and L5. CNAV testing will be visible to all current L2C and L5-capable
receivers. The current GPS L2C and L5 signals have only default message
information. While it is unknown how many fielded L2C and L5 user receivers,
process the CNAV message types, SMC/GP included the public in the test
planning process by way of Federal Register Announcement, to notify all
of the CNAV testing. User and receiver development community involvement
will enhance team expertise in the planning process and AFSPC encourages
public participation during test planning and execution, to obtain the
broadest, most consensus-driven approach possible for testing of the
civil capabilities.
Live-sky test broadcasts provide the most operationally relevant opportunity
to evaluate the new civil signals and fielded receivers and will also
accelerate development of CNAV Concept of Operations.
Active testing will also motivate the development of compatible receivers
and civil community readiness for operational broadcast of the new signals,
in preparation for OCX ready transition to operations (RTO).
The structure and content of all defined CNAV messages broadcast during
live-sky testing are based on applicable SIS Interface Control Documents
and Interface Specifications; however, new CNAV messages may be defined
within the test plan. The new flexible CNAV messaging structure warrants
extensive testing of the different CNAV message types, message contents,
and message delivery intervals to prepare OCX for RTO in mid-2016 and to
ensure CNAV messages are of the highest utility to the GPS world community.
========================================================================
========================================================================
C. PUBLICATIONS RELATED TO THE CORS PROGRAM
--------------------------------------------------
Recently published articles related to the CORS program are available
at the link:
http://geodesy.noaa.gov/CORS/Articles
For Presentations see:
http://geodesy.noaa.gov/CORS/presentations.shtml
Other NGS presentations are available at:
http://geodesy.noaa.gov/web/science_edu/presentations_archive/
==============================================================================
==============================================================================
D. STATISTICS FOR CORS PRODUCTS AND SERVICES
---------------------------------------------------------
June 3, 2013
OPUS COVERAGE BY COUNTY IN MAY 2013
To see a plot of OPUS-S solutions in the US by county during May
2012 click at:
http://geodesy.noaa.gov/OPUSI/Plots/2013-05opus.gif
To see a plot of OPUS-RS solutions in the US by county during May
2013 click at:
http://geodesy.noaa.gov/OPUSI/Plots/2013-05opus-rs.gif
The total OPUS coverage (OPUS + OPUS-RS) by county during a period of one year
can be seen at:
http://geodesy.noaa.gov/OPUSI/Plots/2013-05_2012-06combined.gif
-------------------------------------------------------------------------
June 3, 2013
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://geodesy.noaa.gov/OPUSI/Plots/OPUSRSall-h.15-min.png
Ellipsoid height accuracy: http://geodesy.noaa.gov/OPUSI/Plots/OPUSRSall-u.15-min.png
b) 1 hour session accuracy
Horizontal accuracy: http://geodesy.noaa.gov/OPUSI/Plots/OPUSRSall-h.1-hour.png
Ellipsoid height accuracy: http://geodesy.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://geodesy.noaa.gov/OPUSI/Plots/OPUS-RSWebPlots.pdf
-------------------------------------------------------------------------
June 3, 2013
PREVIOUS YEARS OPUS STATISTICS
Total number of monthly solutions for OPUS-S, OPUS-RS, and OPUS-DB are
graphically displayed at:
http://www.ngs.noaa.gov/OPUSI/Plots/OPUS.jpg
-------------------------------------------------------------------------
June 3, 2013
FTP AND UFCORS STATISTICS FOR MAY 2013
FTP server statistics for May 2013
Total Requests: 1689686 (all FTP requests logged)
Total Data Transferred: 547552 MB (all files)
Requests for RINEX data: 1510393 (89% of total requests)
2013 data: 1213870 (80% of RINEX requests)
2012 data: 212086 (14% of RINEX requests)
2011 data: 7125
2010 data: 2417
2009 data: 10616
2008 data: 10295
2007 data: 18177 ( 1% of RINEX requests)
2006 data: 4882
2005 data: 6158
2004 data: 2772
2003 data: 2161
2002 data: 831
2001 data: 8438
2000 data: 1764
1999 data: 688
1998 data: 6932
1997 data: 236
1996 data: 440
1995 data: 487
1994 data: 18
Requests for daily files. Requests for hourly files.
Total: 644216 - 388815 MB Total: 632096 - 42369 MB
Obs: 95346 - 307496 MB Obs: 53027 - 32368 MB
Nav: 0 - 0 MB Nav: 0 - 0 MB
Met: 249 - 0 MB Met: 0 - 0 MB
Sum: 142034 - 0 MB Sum: 1222 - 0 MB
Other: 406587 - 79348 MB Other: 577847 - 9996 MB
Requests for ephemerides files.
IGR: 200 - 18 MB
IGS: 227 - 21 MB
IGU: 100 - 17 MB
Brdc: 162418 - 6458 MB
Other files: 71136 - 757 MB
Requests from top 10 hosts (% of RINEX requests):
sw06.spaceweather.usu.edu: 392503 (25%) - 13891 MB ( 3%)
sw21.spaceweather.usu.edu: 274886 (18%) - 155395 MB (35%)
ttc.topcon.com: 157980 (10%) - 12054 MB ( 2%)
carina1.cosmic.ucar.edu: 78942 ( 5%) - 1978 MB ( 0%)
oasis6.nbmg.unr.edu: 66203 ( 4%) - 2149 MB ( 0%)
heisenberg: 61429 ( 4%) - 2314 MB ( 0%)
planck: 60715 ( 4%) - 2284 MB ( 0%)
wildcard.jpl.nasa.gov: 55802 ( 3%) - 5980 MB ( 1%)
129-7-53-155.dhcp.uh.edu: 44814 ( 2%) - 12879 MB ( 2%)
crawl-66-249-76-13.googlebot.com: 39030 ( 2%) - 20992 MB ( 4%)
sedna.unibe.ch: 34412 ( 2%) - 905 MB ( 0%)
Total: 1266716 (83%) - 230826 MB (52%)
Unique hosts: 2043 - 547552 MB
Hosts with
1 request: 743 (36%) - 1736 MB ( 0%)
2-100 requests: 1122 (54%) - 29055 MB ( 5%)
101-1000 requests: 105 ( 5%) - 55370 MB (10%)
1001-10000 requests: 50 ( 2%) - 150959 MB (27%)
over 10000 requests: 23 ( 1%) - 310429 MB (56%)
Plots for "user friendly" CORS (UFCORS) requests for last month are available at the
following Web address:
http://geodesy.noaa.gov/CORS-Proxy/UfcorsLogStatistics/corsstatisticsv3?month=May&year=2013
Month by month statistics can be viewed at:
http://geodesy.noaa.gov/CORS-Proxy/UfcorsLogStatistics/corsstatisticsv3?month=All&year=2013
http://geodesy.noaa.gov/CORS-Proxy/UfcorsLogStatistics
A graphic display of FTP and UFCORS previous years activity is available at:
http://www.ngs.noaa.gov/OPUSI/Plots/CORS.jpg
======================================================================
======================================================================
E. LIST OF PARTNERS IN THE CORS PROGRAM
-------------------------------------------------
The following agencies contribute data from their owned and operated stations to the CORS network
Agency No. Sites and Status Agency Name
Code Op Non Pre Dec Total** URL
------- ---- ---- ---- ---- ------ --------------------------------------------------------------------------
320ENG 0 0 0 6 6 320th Engineer Company
ACCUP 0 0 0 1 1 Accupoint Inc.
AGPR4N 0 0 0 1 1 Agrimennsores 4N Inc.
ALDOT 38 0 0 3 41 Alabama Department of Transportation
AKDT 2 0 0 0 2 Alaska Department of Transportation
ASCS 1 0 0 0 1 Alfred State College
ACC 1 0 0 0 1 Allegany College of Maryland
AZGPS 1 2 0 1 4 Arizona GPS
ASLDSC 23 0 0 0 23 Arizona State Land Department, State Cartographers Office
ARHD 7 0 0 1 8 Arkansas Highway and Transportation Department
BPEXAK 4 0 0 1 5 BP Exploration (Alaska) Inc.
BCSD 1 0 0 0 1 Baltimore County Survey Division
BCOLS 0 0 0 1 1 Beckley County Land Surveys
BSL 10 1 0 0 11 Berkeley Seismological Laboratory
BBP3 1 0 0 0 1 Bonneville Blueprint Supply, INC
BYUI 1 0 0 0 1 Brigham Young University-Idaho
BLM 0 0 0 1 1 Bureau of Land Management
BLMCHY 1 0 0 0 1 Bureau of Land Management, Cheyenne, WY
CALNET 0 0 0 1 1 Calhoun Telecommunications System
CSDS 0 1 0 0 1 California Surveying and Drafting Supply Inc.
UT-007 1 0 0 0 1 Carbon County GIS, Utah
CCWY 1 0 0 0 1 Casper College Casper Wyoming
CAYMAN 2 0 0 1 3 Cayman Islands
CFA 0 4 0 0 4 Center For Astrophysics-Harvard
CNPPD 1 0 0 0 1 Central Nebraska Public Power Irrigation District
CENTRO 1 0 0 0 1 Centro Nacional de Registros
TX0030 0 0 0 1 1 City of Abilene, Texas
COAIN 1 0 0 0 1 City of Auburn, Information Systems
OR0180 0 0 0 1 1 City of Beaverton
IL0840 1 0 0 0 1 City of Bloomington Illinois
OH0920 1 0 0 0 1 City of Bowling Green
OH1610 0 0 0 1 1 City of Cincinnati, Ohio
COEKS 0 0 0 1 1 City of Emporia Kansas
GUID 1 0 0 0 1 City of Grand Island Utility Department
COHPWD 3 1 0 3 7 City of Houston Public Works Department
AL1730 1 0 0 0 1 City of Huntsville Alabama
JCKS 0 0 0 1 1 City of Junction City Kansas
AZ0260 1 0 0 0 1 City of Kingman, Arizona
CA2200 1 0 0 0 1 City of Modesto
AR2730 1 0 0 1 2 City of Mountain Home, Arkansas
CTYNBG 1 0 0 0 1 City of Newberg
GA4760 0 0 0 1 1 City of Rome, Georgia
TX6170 0 0 0 1 1 City of San Marcos
AZ0420 1 2 0 0 3 City of Scottsdale, Arizona
65330 1 0 0 0 1 City of St George Utah
AZ0530 2 0 0 0 2 City of Tucson, Arizona
MN-027 1 0 0 0 1 Clay County Minnesota
CBCDOT 0 3 0 0 3 Cobb County Department of Transportation
CCGIS 0 0 0 1 1 Cognocarta de Costa Rica S.A.
CODOT 1 0 0 0 1 Colorado Department of Transportation
GA-073 1 0 0 1 2 Columbia County, Georgia
CNMI 0 0 0 1 1 Commonwealth of the Northern Mariana Islands
CTINC 1 0 0 0 1 CompassTools Inc.
CETINC 0 0 0 1 1 Condor Earth Technologies Inc
CORMEA 0 0 0 5 5 Conerstone Measurement Solutions
CONDOT 9 0 0 0 9 Connecticut Department of Transportation
CCBOT 2 0 0 0 2 Cook County Bureau of Technology
CTA 1 0 0 2 3 Crafton, Tull, Sparks & Associates, Inc.
CRAZYM 0 0 0 1 1 Crazy Mountain Joint Venture
DEDOPR 1 0 0 0 1 Delaware Department of Parks and Recreation
DEDT 1 0 0 1 2 Delaware Department of Transportation
DOUGCS 1 0 0 0 1 Douglas County Surveyor's Office
DCOGIS 6 0 0 1 7 Dupage County GIS DIV
EGPSSO 10 1 0 7 18 EGPS Solutions
EDA 0 0 0 15 15 Earl Dudley Associates Incorporated
ERTHWX 0 0 0 2 2 Earthworx, LLC
EDISI 0 0 0 5 5 Easy Drive Stake Inc.
ENTI 1 0 0 0 1 EnTech, Inc.
ENG 0 1 0 0 1 Engineering, Inc
EDCURI 1 0 0 0 1 Environmental Data Center -URI
ESRI 1 0 0 0 1 Environmental Systems Research Institute
ETHIOP 1 2 0 0 3 Ethiopia Mapping Agency
FALLON 0 0 0 1 1 Fallon Naval Air Station, Nevada
FAA 39 0 0 3 42 Federal Aviation Administration
FLDWKS 0 0 0 1 1 Fieldworks, Inc.
FVCC 1 0 0 0 1 Flathead Valley Community College
FLDT 25 1 0 8 34 Florida Department of Transportation
FCOGA 1 0 0 0 1 Forsyth County GIS Department
GLIS 3 0 0 0 3 Geographical Registration &Land Information Systems
GFZ 1 0 0 0 1 German Research Centre for Geosciences
AZ-007 1 0 0 0 1 Gila County,Arizona
GLNSC 0 1 0 0 1 Glennville State College - Survey Program
GVTC 0 0 0 1 1 Greenville Technical College
HLCM 8 0 0 0 8 HLCM Group, Inc.
HAGCC 0 0 0 1 1 Hagerstown Community College
HGCSD 2 1 0 1 4 Harris Galveston Coastal Subsidence District
HSURIN 0 0 0 4 4 Haselbach Surveying Instruments
IN-063 1 0 0 0 1 Hendricks County Surveyor's Office
MTECH 1 0 0 0 1 Highlands College of Montana Tech
AZCCHF 1 0 0 1 2 Highway and Floodplain Department, Cochise County Arizona
IDDT06 1 0 0 0 1 Idaho Department of Transportation District 6
ISU 1 0 0 0 1 Idaho State University
ITD 3 0 0 0 3 Idaho Transportation Dept
INDOT 36 0 0 0 36 Indiana Department of Transportation
INU 1 0 0 0 1 Indiana University
IGN 2 0 0 0 2 Institut Geographique National
IRAMSU 1 0 0 0 1 Institute for Regional Ananlysis & Public Policy at MSU
IGN-GT 2 1 0 0 3 Instituto Geografico Nacional, Guatemala
IGN-HO 1 0 0 3 4 Instituto Geografico Nacional, Honduras
INEGI 12 0 0 3 15 Instituto Nacional de Estadistica, Geografia e Informatica, Mexico
INETER 1 0 0 1 2 Instituto Nicaraguense de Estudios Territoriales
IADT 2 0 0 0 2 Iowa Department of Transportation
IRAGDS 6 0 0 0 6 Iraq Ministry of Water Resources General Directorate for Surveys
JBDI 0 0 0 1 1 J. B. Davies, Inc
JPL 12 1 0 3 16 Jet Propulsion Laboratory
KARA 10 1 0 10 21 KARA Company
KYTC 17 0 0 0 17 Kentucky Transportation Cabinet
KINGSV 1 0 0 0 1 King Surveyors Inc.
IL-097 1 0 0 0 1 Lake County Division of Transportation, Illinois
LCOGID 0 1 0 0 1 Lancaster County GIS Department
LCSO 2 0 0 0 2 Lane County Surveyors Office
LVVWD 8 0 0 5 13 Las Vegas Valley Water District
LEHIGH 1 0 0 0 1 Lehigh University
LEICA 0 0 0 1 1 Leica
LEIGEO 0 0 0 2 2 Leica Geosystems
GEOATL 0 0 0 3 3 Leica Geosystems Mid-ATL
LASU 26 0 1 6 33 Louisiana State University
LCRA 2 0 0 2 4 Lower Colorado River Authority
PA-081 0 1 0 0 1 Lycoming County, Pennsylvania
MEDT 13 0 0 0 13 Maine Department of Transportation
MTS 3 0 0 2 5 Maine Techinal Source
MARBAY 0 0 0 1 1 Marel Bayamon, Inc
MCDOT 1 0 0 0 1 Maricopa County Department of Transportation
MCSO 3 0 0 0 3 Marion County Surveyors Office
MECOPW 15 0 0 0 15 Mesa County Colorado Department of Public Works
MIDT 89 3 1 4 97 Michigan Department of Transportation
MCABJ 7 0 0 0 7 Millenium Challenge Account-Benin
MNDT 57 1 0 2 60 Minnesota Department of Transportation
MT-063 2 0 0 0 2 Missoula County Surveyor, Montana
MODT 66 0 0 17 83 Missouri Department of Transportation
MVCC 0 1 0 0 1 Mohawk Valley Community College
NY-055 0 0 0 1 1 Monroe County, New York
MTMUA 0 0 0 1 1 Monroe Township Utility Authority
MON 0 1 0 0 1 Monsanto-Soda Springs
MDT 2 0 0 0 2 Montana Dept of Transportation
MTMS 0 1 0 0 1 Montana State University Northern
MTST 1 0 0 0 1 Montana State University-Bozeman
MBC 0 0 0 1 1 Moore Bass Consulting
NCAD 0 0 0 1 1 NCAD Corporation
COOPS 1 0 0 0 1 NOAA, Center for Operational Oceanographic Products and Services
ESRL 18 27 0 3 48 NOAA, Earth System Research Laboratory
NGS 32 6 0 12 50 NOAA, National Geodetic Survey
IN-113 1 0 0 0 1 NOBLE COUNTY INDIANA
NGIA 0 2 0 1 3 National Geospatial-Intelligence Agency
CADNR 10 0 0 1 11 Natural Resources Canada, Geodetic Survey Division
NHDOT 1 0 0 1 2 New Hampshire Department of Transportation
NJIT 0 0 0 1 1 New Jersey Institute of Technology
NMDOT 4 0 0 0 4 New Mexico Department of Transportation
NMSU 1 0 0 0 1 New Mexico State University
NYSDEC 0 0 0 1 1 New York State Department of Environmental Conservation
NYSDOT 43 0 0 1 44 New York State Department of Transportation
NCGS 76 1 0 15 92 North Carolina Geodetic Survey
NDDT 1 0 0 0 1 North Dakota Department of TransportationSurveys & Photogrammetry
MADPW 1 0 0 0 1 Northampton Department of Public Works
OBEC 1 0 0 0 1 OBEC Consulting Engineers
OHDT 49 0 0 5 54 Ohio Department of Transportation
OHU 1 0 0 0 1 Ohio University
OKDOT 18 0 0 0 18 Oklahoma Department of Transportation
PANGA 1 0 0 1 2 PANGA
UNAVPB 379 9 0 3 391 PBO
PWCWR 0 0 0 1 1 PWC W/R Engineering, North Carolina
PACGPS 3 0 0 1 4 Pacific GPS Facility, Hawaii
DAWENG 0 0 0 1 1 Pape Dawson Engineers Inc.
SMITHC 0 1 0 0 1 Paul Smiths College
PELLIS 0 0 0 1 1 Pellissippi State Technical Community College
PADT 18 0 0 4 22 Pennsylvania Department of Transportation
PIERCE 1 0 0 4 5 Pierce County Public Works and Utilities
GTST 0 0 0 1 1 Precise Geosystems Inc.
PLI 1 0 0 0 1 Precision Laser & Instrument
PRDUCT 1 0 0 0 1 Purdue University - College of Tech
RLDA 0 0 0 2 2 RLDA Surveying and Mapping
RODS 1 0 0 1 2 RODS Surveying Inc.
RTI 14 1 0 0 15 Rahall Appalachian Transportation Institute
ANDREA 1 0 0 0 1 Rocco V. D'Andrea, Inc.
RRWRD 1 0 0 0 1 Rock River Water Reclamation District
SLCS 0 1 0 0 1 Salt Lake County Surveyors, Utah
SRP 1 0 0 0 1 Salt River Project, Arizona
ILSA 1 0 0 0 1 Sangamon County, Illinois
SATLOC 0 0 0 1 1 Satloc Inc.
SCBO 1 0 0 0 1 Scotts Bluff County
SOPAC 7 1 0 1 9 Scripps Orbit and Permanent Array Center
KS-173 5 0 0 0 5 Sedgwick County
SEILER 14 3 0 7 24 Seiler Instruments
SKAGIT 0 0 0 1 1 Skagit County Washington
SMRTNT 52 3 0 7 62 SmartNet North America
SCGS 14 0 0 3 17 South Carolina Geodetic Survey
SOIU 0 0 0 1 1 Southern Illinois Univ Carbondale
OH-151 0 0 0 5 5 Stark County, Ohio GIS
SUNY 0 0 0 1 1 State University of New York
SOADOT 0 0 0 1 1 State of Alaska, Department of Transportation
SAMINC 1 0 0 1 2 Surveying and Mapping, Inc
SURVSC 0 0 0 1 1 Surveyors Service Company
TWT 1 0 0 1 2 Taylor Wiseman & Taylor
TNDOT 40 0 0 0 40 Tennessee Dept. of Transportation Dsgn Div.
TXDOTD 6 0 0 0 6 Texas DOT, Dallas District
TXDOT 127 0 0 21 148 Texas Department of Transportation
SUREX 2 0 0 0 2 The Surveyors Exchange, Alaska
TWAMNY 0 0 0 1 1 Town of Amherst Enginerring Deparment
TRINST 0 0 0 1 1 Transit Instruments Inc
USAFCE 1 0 0 0 1 U.S. Air Force
USCG 170 1 5 220 396 U.S. Coast Guard
NPNF 1 0 0 0 1 U.S. Forest Service, Nez Perce National Forest
USGSVC 1 0 0 0 1 U.S. Geological Survey Cascades Volcano Obs.
USGSPA 6 0 0 1 7 U.S. Geological Survey, Pasadena/SCIGN
USNOAM 1 0 0 0 1 U.S. Naval Observatory, Alternate Master Clock
USSRC 1 0 0 0 1 U.S. Space & Rocket Center
UNAVCO 37 6 4 2 49 UNAVCO Inc.
UNAVPS 7 2 1 0 10 UNAVCO_NON-PBO
UOAA 1 0 0 0 1 University of Alaska Anchorage
UARM 0 1 0 0 1 University of Arkansas, Monticello
UCONN 0 0 0 1 1 University of Connecticut
UIL 1 0 0 1 2 University of Illinois
UMDBAL 1 0 0 0 1 University of Maryland, Baltimore County
UMT 1 0 0 0 1 University of Montana
UNHFIT 1 0 0 0 1 University of New Hampshire FIT
USMGOR 0 0 0 1 1 University of Southern Maine
GCGCMU 0 0 0 2 2 University of Southern Mississippi, GCGC
GCGC 4 0 1 14 19 University of Southern Mississippi, Gulf Coast Geospatial Center
USMS 1 0 0 0 1 University of Southern Mississippi, Stennis Space Center
UTEP 1 0 0 0 1 University of Texas El Paso
UVM 1 0 0 0 1 University of VermontNetwork Services
UTDT 0 0 0 1 1 Utah Department of Transportation
VTAT 15 0 0 0 15 Vermont Agency of Transportation/VAOT
VUTD 1 0 0 0 1 Vincennes University
VDMME 1 0 0 0 1 Virginia Department of Mines Minerals & Energy
VADOT 4 0 0 1 5 Virginia Department of Transportation
WFF 1 0 0 0 1 Wallops Flight Facility-NASA GSFC
WACOSU 1 0 0 1 2 Washington County Surveyor's Office
WSRN 9 0 0 0 9 Washington State Reference Network
WACOPW 5 0 0 2 7 Washoe County Public Works
UT-057 0 0 0 1 1 Weber County Survey Department, Utah
WECHCO 1 0 0 0 1 West Chester University
WIDT 5 0 0 0 5 Wisconsin Department of Transportation
WHU 1 0 0 0 1 Wuhan University
---- --- --- --- ----
1876 98 13 526 2513 Site Totals
Op Non Pre Dec Total**
------- ---- ---- ---- ---- ------ --------------------------------------------------------------------------
*Agency Code=NGS code for contributing agency; **Op=operating normally, Non=no data for 30 days,
Pre=preliminary no coordinates published, Dec=Decommissioned, Total=Total sites (Op+Non+Pre+Dec)
===========================================================================
===========================================================================
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