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STATION 'OBEC'

OBEC Cooperative CORS Station Links
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DAT Files - 1 Hour files

RINEX Files - 24 hour files

Other Sites of Interest
Online Positioning User Service (OPUS) OPUS allows users to submit their GPS data files in RINEX format to NGS, where the data will be processed to determine a position using NGS computers and software. Each RINEX file that is submitted will be processed with respect to the 3 best national CORS sites.
Global Positioning System Overview - an excellent on-line resource on the Global Positioning System by Peter H. Dana, The Geographer's Craft Project, Department of Geography, The University of Colorado at Boulder.
U.S. Coast Guard Navigation Center - Information on the status of GPS, DGPS, Loran-C and other navigational aids. This site includes information on GPS satellite launches and forecast of service outages.
National Geodetic Survey CORS NGS coordinates a network of continuously operating reference stations (CORS) throughout the United States.
NGS Products and Services - Data products, software, publications and services provided by the National Geodetic Survey.
 

Global Positioning System (GPS)
Continuously Operating Reference Station (CORS), Eugene, OR

Since 2001, OBEC has maintained a GlobalSite Photo Positioning System (GPS) Cooperative Continuously Operating Reference Station (CORS).

The station officially came online at 920 Country Club Road in Eugene, Oregon on January 1, 2001 and the station was designated with ID 'OBEC' for OBEC Consulting Engineers.  Code and carrier phase GPS data are generated and provided free of charge, in Receiver Independent Exchange (RINEX) format and Trimble proprietary DAT format.  This data is used to obtain more accurate results from a variety of GPS projects.

The station has been upgraded to an Trimble NetRS (Nav 1.15 / Boot 1.12) dual frequency receiver with a Zephyr Geodetic antenna that is permanently mounted on the building. Trimble's GPSBase Version 2.500 is used to control the receiver. See log file for previous equipment.

Note that as of October 9, 2003 the position imbedded in data files was changed from the NAD 83(98) position to the NAD 83(CORS96) (EPOCH 2002.0) position (NGS PID DE6242.). For survey adjustments using Station 'OBEC' you may wish to use the appropriate position posted on our Site Positions page or perform your own survey adjustment with the data.

Data is available on-line for a period of 31 days.  Past data is archived on CD.

If you need assistance or have any questions, please send e-mail to: OBEC Geomatics

NGS Cooperative CORS

This page was last modified Saturday October 21, 2006.