WELCOME TO THE CHEYENNE /
LARAMIE COUNTY
,
WYOMING
CORS WEB PAGE!!
WYLC
Specifications | Location
Map | Disclaimer
The Bureau
of Land Management, Laramie County Community College, the
Cheyenne / Laramie County GIS Cooperative and the Professional
Land Surveyors of Wyoming / Southeast Chapter have collectively
entered into an agreement for the establishment of a Continuously
Operating Reference Station (CORS) in Laramie County, Wyoming.
What is
CORS? www.ngs.noaa.gov/CORS
The participants
have dedicated their time and resources to establish the
Cooperative CORS and a point of distribution for the mapping
data.
Equipment
resources were provided as follows:
Trimble
Navigation 5700 GPS CORS station and antenna
TRS datalogging software and datalogging computer
Tribach for antenna mount
Technical knowledge of the Wyoming State Geodesist and NGS State Geodetic
Coordinator
Location
for CORS
Antenna mount and support
IT support and telecommunications links for successful data transmittal to
NGS and Cheyenne/Laramie County GIS Cooperative website.
Website
for distribution and archival of mapping data to the public
and GIS Cooperative members
 Professional
Land Surveyors of Wyoming / Southeast Chapter
www.plsw.org
Trimble
Navigation Trimmark IIe radio, cabling, power converter
and accessories for the purpose of broadcasting a Real
Time Kinematic (RTK) GPS corrector signal
Coordination of FCC licensing.
Last
24 Hours Data | Archived
Data
WYLC
Specifications
The station consists of a Trimble 5700 dual frequency GPS receiver, a Trimble
D/M chokering antenna, and TRS v1.05 datalogging software. Station operation
is 24 hours a day
A Trimble
Trimmark IIe 25 watt radio broadcasts a CMR+ record on 461.65
MHz for Real Time Kinematic (RTK) surveying. The RTK signal
is available from 0500 to 2000 hours local time
Two types
of files are collected. The first is a Trimble .DAT file
(5 second measurement rate) is posted every thirty minutes
to the National Geodetic Survey where is converted to the
RINEX format. Data is available for download from www.ngs.noaa.gov/CORS.
A Trimble
mapping ssf file (5 second measurement rate) is posted hourly
to ftp://www.laramiecounty.com/gps_data.
The data is available as compressed self-extracting .exe
files.
Station
Coordinates
The station coordinates are listed below. Elevations and heights are referenced
to the Antenna Reference Position(ARP) which is the bottom of the antenna.
NAD_83
(CORS96) POSITION (EPOCH 2002.0)
Latitude = 41 06 16.29463 N
Longitude = 104 46 31.29352 W
Ellipsoid height = 1824.750 m
Geoid height = -16.44 m
Orthometric Elevation = 1841.19 m (computed from Geoid 03)
WGS 84
(1150) / ITRF00 POSITION (EPOCH 1997.0)
Latitude = 41 06 16.31845 N
Longitude = 104 46 31.33032 W
Ellipsoid height = 1823.892 m
The link
below will allow one to download the coordinate or datasheet
for Station WYLC
http://www.ngs.noaa.gov/cgi-cors/corsage.prl?site=wylc
LOCATION
MAP
The station
is located on top of the Construction Trades Building on
the east end of the Laramie County Community College campus.
The antenna location is at the blue icon on the map.
Disclaimer
The
Department of the Interior, Bureau of Land Management, Laramie
County Community College, the Cheyenne/Laramie County GIS
Cooperative and the Professional Land Surveyors of Wyoming/Southeast
Chapter, collectively known as the Agencies, provide this
web site and its services as a cooperative effort and convenience
for its customers and disclaims all warranties relating to
this web site and the information contained herein, whether
expressed or implied, including without limitation any implied
warranties of fitness for a particular purpose, functionality,
data integrity, or protection.
The
Agencies assume no responsibility for errors, omissions or
incomplete data. The Agencies will not be liable for any
special, incidental, consequential, indirect or similar damages
due to the use or misuse of this web site and the information
contained herein, even if the Agencies have been advised
of the possibility of such damages. The person or entity
using this web site and the information contained on it bears
all risk as to the use and application of this information.
Furthermore,
the Agencies do not guarantee that the Base Station, this
web site, or data will be operating or available at any given
time. Use of this system and its data is at the user's own
risk.
This
web site is provided as a service and convenience to the
Public and is setup at the pleasure of the Agencies. This
service may be discontinued with no advance notice by the
operators or may be discontinued to users for abuse or misuse
of the system.
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Laramie
County Community College
Cheyenne
/ Laramie County GIS Cooperative
