The NGS Data Sheet
See file dsdata.pdf for more information about the datasheet.
PROGRAM = datasheet95, VERSION = 8.12.5.19
Starting Datasheet Retrieval...
1 National Geodetic Survey, Retrieval Date = FEBRUARY 20, 2025 08:49:53 EST
DR7920 ***********************************************************************
DR7920 CORS - This is a GPS Continuously Operating Reference Station.
DR7920 DESIGNATION - BRIONES RESERVOIR CORS ARP
DR7920 CORS_ID - BRI2
DR7920 PID - DR7920
DR7920 STATE/COUNTY- CA/CONTRA COSTA
DR7920 COUNTRY - US
DR7920 USGS QUAD - BRIONES VALLEY (2018)
DR7920
DR7920 *CURRENT SURVEY CONTROL
DR7920 ______________________________________________________________________
DR7920* NAD 83(2011) POSITION- 37 55 10.07684(N) 122 09 09.02995(W) ADJUSTED
DR7920* NAD 83(2011) ELLIP HT- 265.656 (meters) (04/??/22) ADJUSTED
DR7920* NAD 83(2011) EPOCH - 2010.00
DR7920 ______________________________________________________________________
DR7920 GEOID HEIGHT - -32.115 (meters) GEOID18
DR7920 NAD 83(2011) X - -2,681,169.186 (meters) COMP
DR7920 NAD 83(2011) Y - -4,265,461.208 (meters) COMP
DR7920 NAD 83(2011) Z - 3,898,559.372 (meters) COMP
DR7920
DR7920.Formal positional accuracy estimates are not available for this CORS
DR7920.because its coordinates were determined in part using modeled
DR7920.velocities. Approximate one-sigma accuracies for latitude, longitude,
DR7920.and ellipsoid height can be obtained from the short-term time series.
DR7920.Additional information regarding modeled velocities is available on
DR7920.the CORS Coordinates for MYCS2 web page:
DR7920.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DR7920
DR7920.The coordinates were established by GPS observations
DR7920.and adjusted by the National Geodetic Survey in April 2022.
DR7920
DR7920.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DR7920.been affixed to the stable North American Tectonic Plate.
DR7920
DR7920.The coordinates are valid at the epoch date displayed above
DR7920.which is a decimal equivalence of Year/Month/Day.
DR7920
DR7920.Due to the release of the International GNSS Service (IGS) 2014
DR7920.realization of the International Terrestrial Reference Frame of 2014
DR7920.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DR7920.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DR7920.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DR7920.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DR7920.currently published epoch of 2010.00.
DR7920
DR7920.Additional information on MYCS2 is available at
DR7920.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DR7920
DR7920.Significant digits in the geoid height do not necessarily reflect accuracy.
DR7920.GEOID18 height accuracy estimate available here.
DR7920
DR7920.The PID for the CORS L1 Phase Center is DR7921.
DR7920
DR7920.Click photographs - Photos may exist for this station.
DR7920
DR7920.The XYZ, and position/ellipsoidal ht. are equivalent.
DR7920
DR7920.The ellipsoidal height was determined by GPS observations
DR7920.and is referenced to NAD 83.
DR7920
DR7920. The following values were computed from the NAD 83(2011) position.
DR7920
DR7920; North East Units Scale Factor Converg.
DR7920;SPC CA 3 - 658,817.128 1,854,714.759 MT 0.99993348 -1 00 42.2
DR7920;SPC CA 3 - 2,161,469.19 6,085,010.01 sFT 0.99993348 -1 00 42.2
DR7920;UTM 10 - 4,197,218.218 574,489.474 MT 0.99966834 +0 31 15.1
DR7920
DR7920! - Elev Factor x Scale Factor = Combined Factor
DR7920!SPC CA 3 - 0.99995832 x 0.99993348 = 0.99989180
DR7920!UTM 10 - 0.99995832 x 0.99966834 = 0.99962667
DR7920
DR7920_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG7448997218(NAD 83)
DR7920
DR7920 SUPERSEDED SURVEY CONTROL
DR7920
DR7920.No superseded survey control is available for this station.
DR7920
DR7920_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DR7920
DR7920 STATION DESCRIPTION
DR7920
DR7920'DESCRIBED BY NATIONAL GEODETIC SURVEY 2022
DR7920'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DR7920'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DR7920'ACCESSIBLE AT THE WORLDWIDE WEB.
DR7920'https://geodesy.noaa.gov/CORS/data.shtml
DR7920'https://geodesy.noaa.gov/CORS
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