CRTN Data Policy
- CRTN data streams are now available via NTRIP. Users must have a CRTN user account (NTRIP username and password) and can be requested by emailing Yehuda Bock @ firstname.lastname@example.org.
- CRTN has been divided into southern (SC) and northern (NC) sections. The breakdown of stations and relevant information can be found at http://sopac.ucsd.edu/input/realtime/CRTN_Access.xls.
- CRTN RTCM data streams are now available through NTRIP protocol: For Southern California;
RTCM3.0: IP=126.96.36.199, Port=2103, Mountpoint=XXXX_RTCM3 (e.g., CARH_RTCM3). For Northern California;
RTCM3.0: IP=188.8.131.52, Port=2103, Mountpoint=XXXX_RTCM3 (e.g., P345_RTCM3).
- Multiple data streams (through IP and port number, not NTRIP), multiple usernames and passwords (through NTRIP) will be available to CRTN Consortium members including contributing members, and CRTN collaborators.
- Contributing Members donate $1,000 annually, which provides access to a second NTRIP account for real-time access to RTCM 3.0 data (all users have free access to a single account). Additional access increases by $1,000 per account. Please note that contributing members do not participate in oversight/management of the network. All donations are used towards operating and maintaining CRTN and our data services. If you or your organization would like to donate, please go click here.
- CRTN Consortium Members contribute $15,000 annually, which provides access to any 20 real-time CGPS sites 24/7. This membership has voting privileges on the CRTN Consortium, which oversees the development and management of the network.
- Statewide CRTN Consortium Members contribute $150,000 annually, which provides access to all real- time CGPS sites 24/7. This membership has 3 voting privileges on the CRTN Consortium, which oversees the development and management of the network.
- To receive CRTN updates, please subscribe to the CRTN Forum here.
Participating Organizations: American Congress on Surveying and Mapping (ACSM) • American Council of Engineering Companies (ACEC) California • American Society of Photogrammetry and Remote Sensing (ASPRS) • BAsin and Range GEodetic Network (BARGEN) • Bay Area Regional Deformation (BARD) • Bureau of Land Management (BLM) • California Coastal Commission (CCC) • California Department of Water Resources (DWR) • California Land Surveyors Association (CLSA) • California State University Fresno • CalTrans • Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE) • City of Los Angeles, Department of Public Works • City of Vacaville • County Engineers Association • East Bay Municipal Utility District (EBMUD) • ESRI • Geographical Information Systems Consultants • League of California Surveying Associations • Metropolitan Water District of Southern California (MWD) • National Oceanic and Atmospheric Administration (NOAA) • NOAA’s National Ocean Service (NOS) National Geodetic Survey (NGS) • Office of Management and Budget • Orange County Public Works • Riverside County Flood Control and Water Conservation District • RBF Consulting • San Diego Department of Public Works • San Francisco Bay Conservation and Development Commission (BCDC) • Santa Clara Valley Water District • Southern California Integrated GPS Network (SCIGN) • Stoddard and Associates • University of California, San Diego (UCSD) • U.S. Corps of Engineers • U.S. Geological Survey (USGS) • Urban and Regional Information Systems Association (URISA)
In February 2018, the CSRC published a new geodetic datum for California called “CSRS Epoch 2017.50 (NAD83)” under a Caltrans contract to SIO/SOPAC. The new epoch-date coordinates will be transmitted with RTCM 3.0 data streams starting March 1, 2018.