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Global Positioning System> CBS Files for Download

CBS Files

Graphic image of the USDA Forest Service shield logo.SACRAMENTO, California GPS Community Base Station
US Forest Service

CBS Year Month Date (from) Date (to)

Note: If your query yields a blank page check the above form for correct data entry. If it is still blank then there is no data available for the requested times or there is a problem with the search.

Alternatively, click below for a full listing of all reference files available from this website for this CBS.

Display all files available at Sacramento, CA


  • Latitude: 38 39' 41.69447" North
  • Longitude: 121 23' 15.2133" West
  • Horizontal Datum: WGS84
  • Elevation: 3.910 meters above ellipsoid
  • Receiver: 12 Channel TRIMBLE Maxwell chip receiver
  • Tracking epoch (sec.): Position at 5 seconds; SYNC measure at 5 seconds
  • The antenna survey monument located in reference to the California HARN .


  • Contact Person: Kevin Casey, Vegetation Inventory & Monitoring, USFS Pacific Southwest Region
  • Address: USDA Forest Service, Remote Sensing Lab, 3237 Peacekeeper Way, Suite 209, McClellan, CA 95652
  • Telephone: 916-640-1252 Mobile: 530-305-6446
  • E-Mail: Kevin Casey
  • Pacific Southwest Region - Remote Sensing Lab


  • Data is available in receiver dependent Trimble .SSF format. RINEX is not supported at this time.
  • File name: BYMMDDHH.EXE where B=Sacramento; Y=year; MM=month; DD=day; HH=hour in \ GPS time; .EXE files are compressed and self-extracting. File length is one hour.
  • Data is kept 3 months before being removed from data storage.
  • Operation is 16 hours per day; 0600-2200 local time 7 days per\ week.

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