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 17, 2025 18:19:16 EST
DO8867 ***********************************************************************
DO8867 CORS - This is a GPS Continuously Operating Reference Station.
DO8867 DESIGNATION - HEMPHILL CORS ARP
DO8867 CORS_ID - TXHP
DO8867 PID - DO8867
DO8867 STATE/COUNTY- TX/SABINE
DO8867 COUNTRY - US
DO8867 USGS QUAD - HEMPHILL (2019)
DO8867
DO8867 *CURRENT SURVEY CONTROL
DO8867 ______________________________________________________________________
DO8867* NAD 83(2011) POSITION- 31 20 01.87064(N) 093 51 53.60664(W) ADJUSTED
DO8867* NAD 83(2011) ELLIP HT- 67.475 (meters) (03/??/24) ADJUSTED
DO8867* NAD 83(2011) EPOCH - 2010.00
DO8867 ______________________________________________________________________
DO8867 GEOID HEIGHT - -27.395 (meters) GEOID18
DO8867 NAD 83(2011) X - -367,546.342 (meters) COMP
DO8867 NAD 83(2011) Y - -5,440,491.165 (meters) COMP
DO8867 NAD 83(2011) Z - 3,297,600.981 (meters) COMP
DO8867
DO8867 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DO8867 Standards:
DO8867 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DO8867 Horiz Ellip SD_N SD_E SD_h (unitless)
DO8867 -------------------------------------------------------------------
DO8867 NETWORK 0.17 0.48 0.06 0.08 0.24 0.05278400
DO8867 -------------------------------------------------------------------
DO8867
DO8867.The coordinates were established by GPS observations
DO8867.and adjusted by the National Geodetic Survey in March 2024.
DO8867
DO8867.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DO8867.been affixed to the stable North American Tectonic Plate.
DO8867
DO8867.The coordinates are valid at the epoch date displayed above
DO8867.which is a decimal equivalence of Year/Month/Day.
DO8867
DO8867.Due to the release of the International GNSS Service (IGS) 2014
DO8867.realization of the International Terrestrial Reference Frame of 2014
DO8867.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DO8867.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DO8867.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DO8867.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DO8867.currently published epoch of 2010.00.
DO8867
DO8867.Additional information on MYCS2 is available at
DO8867.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DO8867
DO8867.Significant digits in the geoid height do not necessarily reflect accuracy.
DO8867.GEOID18 height accuracy estimate available here.
DO8867
DO8867.The PID for the CORS L1 Phase Center is DS2920.
DO8867
DO8867.Click photographs - Photos may exist for this station.
DO8867
DO8867.The XYZ, and position/ellipsoidal ht. are equivalent.
DO8867
DO8867.The ellipsoidal height was determined by GPS observations
DO8867.and is referenced to NAD 83.
DO8867
DO8867. The following values were computed from the NAD 83(2011) position.
DO8867
DO8867; North East Units Scale Factor Converg.
DO8867;SPC TX C - 3,202,708.579 1,315,191.864 MT 0.99989851 +3 19 53.9
DO8867;SPC TX C -10,507,553.06 4,314,925.31 sFT 0.99989851 +3 19 53.9
DO8867;UTM 15 - 3,466,925.145 417,719.898 MT 0.99968350 -0 26 59.2
DO8867
DO8867! - Elev Factor x Scale Factor = Combined Factor
DO8867!SPC TX C - 0.99998940 x 0.99989851 = 0.99988792
DO8867!UTM 15 - 0.99998940 x 0.99968350 = 0.99967291
DO8867
DO8867_U.S. NATIONAL GRID SPATIAL ADDRESS: 15RVQ1771966925(NAD 83)
DO8867
DO8867 SUPERSEDED SURVEY CONTROL
DO8867
DO8867 NAD 83(2011)- 31 20 01.87114(N) 093 51 53.60643(W) AD(2010.00) c
DO8867 ELLIP H (07/??/23) 67.442 (m) GP(2010.00) c c
DO8867 NAD 83(2011)- 31 20 01.87114(N) 093 51 53.60702(W) AD(2010.00) c
DO8867 ELLIP H (06/??/19) 67.402 (m) GP(2010.00) c c
DO8867 NAD 83(2011)- 31 20 01.87154(N) 093 51 53.60681(W) AD(2010.00) c
DO8867 ELLIP H (09/??/13) 67.378 (m) GP(2010.00) c c
DO8867
DO8867.Superseded values are not recommended for survey control.
DO8867
DO8867.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DO8867.See file dsdata.pdf to determine how the superseded data were derived.
DO8867
DO8867_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DO8867
DO8867 STATION DESCRIPTION
DO8867
DO8867'DESCRIBED BY NATIONAL GEODETIC SURVEY 2024
DO8867'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DO8867'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DO8867'ACCESSIBLE AT THE WORLDWIDE WEB.
DO8867'https://geodesy.noaa.gov/CORS/data.shtml
DO8867'https://geodesy.noaa.gov/CORS
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