GPS Base Station News

September 13, 2006

At our request, station OBEC has a new position courtesy of the NGS.  The new position was computed using at least 90 days of data.  The imbedded positions in the DAT and RINEX files will be updated shortly when we perform some needed maintenance to the server.  For the latest positions see our coordinates page and for the previous position see the superseded position on the data sheet.

May 17, 2006

Station OBEC is officially upgraded to a Trimble NetRS (Nav 1.15 / Boot 1.12) dual frequency receiver with a Trimble Zephyr Geodetic antenna.  The Trimble Reference Station software (TRS) v1.05 was upgraded to GPSBase v2.500. SSF files are no longer available do to limitations of the GPSBase software.  Our web address has also changed to http://gps.obec.com and our ftp site address is ftp://gps.obec.com. 

For directory browsing of available data use this address http://gps.obec.com/GPSBaseData. Our log file is available at http://gps.obec.com/OBEC_20060502.log.

June 22, 2003

After nearly 600 days of un-interrupted logging, data between June 14, 2003 (2:00am PST) and June 20, 2003 (6:00pm PST) may be incomplete or corrupted due unforeseen circumstances. In an effort to help one of our users streamline there applications we recently added a Public IP Address to our Trimble Reference Station which has apparently been "hacked". We have since added security measures to prevent this from future occurrences. Please use caution when using data between the above mentioned dates.

October 9, 2003

Today at approximately 5:00pm local time the geographic position for Station OBEC was changed to reflect the position published by the NGS in the data sheet PID DE6242. The following position is now embedded in the DAT, SSF, and Rinex files created by this station.

NAD 83(CORS)- 44 03 57.45762(N) 123 05 53.28105(W)

June 22, 2003

After nearly 600 days of un-interrupted logging, data between June 14, 2003 (2:00am PST) and June 20, 2003 (6:00pm PST) may be incomplete or corrupted due unforeseen circumstances. In an effort to help one of our users streamline there applications we recently added a Public IP Address to our Trimble Reference Station which has apparently been "hacked". We have since added security measures to prevent this from future occurrences. Please use caution when using data between the above mentioned dates.

July 16, 2002

The NGS has recently started testing a new version of OPUS that rotates the NAD83 vectors to the 2002.0 epoch date. The CORS positions are already fixed at that epoch but that was not the case with the vectors. The ITRF00 have stayed the same. These new positions reflect the velocity movement of the station. Positions are related to the CORS Stations and are a snapshot in time. The new positions are posted on the Site Positions page. See our coordinates page for more details.

June 16, 2002

The file type and extension for SSF files has been changed to .exe. This makes the files easier for Pathfinder Office to read.

June 14, 2002

There will be no data available for Sunday June 23, 2002 from 5:00 PM PDT to 6:00 PM PDT.  Our Trimble Reference Station Server will be down for maintenance. CANCELLED! Maintenance was performed without powering down the system.

June 14, 2002

The file naming convention for RINEX files has been changed from STANDARD to CORS as of 5:00pm PDT today.  See our help page for naming conventions.

May 1, 2002

ITRF position updated to ITRF00 (epoch 1997).  See our coordinates page for more details.