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 07:06:47 EST
DO9484 ***********************************************************************
DO9484 CORS - This is a GPS Continuously Operating Reference Station.
DO9484 DESIGNATION - LITTLEFIELD CORS ARP
DO9484 CORS_ID - TXL1
DO9484 PID - DO9484
DO9484 STATE/COUNTY- TX/LAMB
DO9484 COUNTRY - US
DO9484 USGS QUAD - LITTLEFIELD (2019)
DO9484
DO9484 *CURRENT SURVEY CONTROL
DO9484 ______________________________________________________________________
DO9484* NAD 83(2011) POSITION- 33 56 18.22645(N) 102 20 58.27588(W) ADJUSTED
DO9484* NAD 83(2011) ELLIP HT- 1072.682 (meters) (06/??/19) ADJUSTED
DO9484* NAD 83(2011) EPOCH - 2010.00
DO9484 ______________________________________________________________________
DO9484 GEOID HEIGHT - -24.582 (meters) GEOID18
DO9484 NAD 83(2011) X - -1,133,101.340 (meters) COMP
DO9484 NAD 83(2011) Y - -5,175,377.119 (meters) COMP
DO9484 NAD 83(2011) Z - 3,541,378.409 (meters) COMP
DO9484
DO9484 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DO9484 Standards:
DO9484 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DO9484 Horiz Ellip SD_N SD_E SD_h (unitless)
DO9484 -------------------------------------------------------------------
DO9484 NETWORK 0.15 0.42 0.05 0.06 0.22 0.17835000
DO9484 -------------------------------------------------------------------
DO9484
DO9484.The coordinates were established by GPS observations
DO9484.and adjusted by the National Geodetic Survey in June 2019.
DO9484
DO9484.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DO9484.been affixed to the stable North American Tectonic Plate.
DO9484
DO9484.The coordinates are valid at the epoch date displayed above
DO9484.which is a decimal equivalence of Year/Month/Day.
DO9484
DO9484.Due to the release of the International GNSS Service (IGS) 2014
DO9484.realization of the International Terrestrial Reference Frame of 2014
DO9484.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DO9484.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DO9484.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DO9484.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DO9484.currently published epoch of 2010.00.
DO9484
DO9484.Additional information on MYCS2 is available at
DO9484.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DO9484
DO9484.Significant digits in the geoid height do not necessarily reflect accuracy.
DO9484.GEOID18 height accuracy estimate available here.
DO9484
DO9484.The PID for the CORS L1 Phase Center is DS2926.
DO9484
DO9484.Click photographs - Photos may exist for this station.
DO9484
DO9484.The XYZ, and position/ellipsoidal ht. are equivalent.
DO9484
DO9484.The ellipsoidal height was determined by GPS observations
DO9484.and is referenced to NAD 83.
DO9484
DO9484. The following values were computed from the NAD 83(2011) position.
DO9484
DO9484; North East Units Scale Factor Converg.
DO9484;SPC TXNC - 2,258,443.540 244,188.699 MT 0.99999224 -2 05 58.2
DO9484;SPC TXNC - 7,409,576.85 801,142.42 sFT 0.99999224 -2 05 58.2
DO9484;UTM 13 - 3,758,490.330 744,975.698 MT 1.00033987 +1 28 49.8
DO9484
DO9484! - Elev Factor x Scale Factor = Combined Factor
DO9484!SPC TXNC - 0.99983163 x 0.99999224 = 0.99982387
DO9484!UTM 13 - 0.99983163 x 1.00033987 = 1.00017145
DO9484
DO9484_U.S. NATIONAL GRID SPATIAL ADDRESS: 13SGT4497558490(NAD 83)
DO9484
DO9484 SUPERSEDED SURVEY CONTROL
DO9484
DO9484 NAD 83(2011)- 33 56 18.22688(N) 102 20 58.27578(W) AD(2010.00) c
DO9484 ELLIP H (10/??/13) 1072.702 (m) GP(2010.00) c c
DO9484
DO9484.Superseded values are not recommended for survey control.
DO9484
DO9484.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DO9484.See file dsdata.pdf to determine how the superseded data were derived.
DO9484
DO9484_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DO9484
DO9484 STATION DESCRIPTION
DO9484
DO9484'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DO9484'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DO9484'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DO9484'ACCESSIBLE AT THE WORLDWIDE WEB.
DO9484'https://geodesy.noaa.gov/CORS/data.shtml
DO9484'https://geodesy.noaa.gov/CORS
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