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- Global Positioning System (GPS)
TxDOT is participating with the RRPs in the National Continuously Operating Reference Stations (CORS) network operated by the National Geodetic Survey The RRPs are based on the North American Datum 83 (EPOCH 2010 0) coordinates and are used to improve positional accuracy through post-processing techniques
- TxDOT Survey Levels of Accuracy for GPS
The most accurate stations in the state are the Continuously Operating Reference Stations (CORS) of the National Spatial Reference System (NSRS) These stations are overseen by the NGS and their placements are not included in the TxDOT Levels of Surveys
- Primary Control Points - Texas Department of Transportation
Primary Control Points Primary control points will be referenced to the National Spatial Reference System (NSRS) through Continuously Operating Reference Stations (CORS) or Federal Base Network (FBN) Stations
- TxDOT Survey Manual
Primary control points will be referenced to the National Spatial Reference System (NSRS) through Continuously Operating Reference Stations (CORS) or Federal Base Network (FBN) Stations
- TxDOT RTN - Login
Login External Links GNSS Planning Tool NGS CORS Datasheets NGS OPUS NOAA Space Weather Trimble - Solar Cycle 25
- TxDOT RTN - Sensor Map
Login External Links GNSS Planning Tool NGS CORS Datasheets NGS OPUS NOAA Space Weather Trimble - Solar Cycle 25
- Texas Coordinate System of 1983
All projects must be based upon the Texas Coordinate System of 1983 in U S Survey feet and be relative to the published values of the National Geodetic Survey (NGS) Continuously Operating Reference Station (CORS) network
- Texas Department of Transportation
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