OBEC Cooperative CORS Station Links
Global Positioning System (GPS)
Continuously Operating Reference Station (CORS), Eugene, OR
Since 2001, OBEC has
maintained a Global
Positioning System (GPS) Cooperative Continuously Operating Reference
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:
NGS Cooperative CORS