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 18, 2025 19:51:09 EST
DH4801 ***********************************************************************
DH4801 CORS - This is a GPS Continuously Operating Reference Station.
DH4801 DESIGNATION - SAM1 AUSTIN COOP CORS ARP
DH4801 CORS_ID - SAM1
DH4801 PID - DH4801
DH4801 STATE/COUNTY- TX/TRAVIS
DH4801 COUNTRY - US
DH4801 USGS QUAD - OAK HILL (2019)
DH4801
DH4801 *CURRENT SURVEY CONTROL
DH4801 ______________________________________________________________________
DH4801* NAD 83(2011) POSITION- 30 14 18.93412(N) 097 50 31.64644(W) ADJUSTED
DH4801* NAD 83(2011) ELLIP HT- 208.701 (meters) (06/??/19) ADJUSTED
DH4801* NAD 83(2011) EPOCH - 2010.00
DH4801 ______________________________________________________________________
DH4801 GEOID HEIGHT - -25.688 (meters) GEOID18
DH4801 NAD 83(2011) X - -752,510.787 (meters) COMP
DH4801 NAD 83(2011) Y - -5,463,585.796 (meters) COMP
DH4801 NAD 83(2011) Z - 3,193,356.808 (meters) COMP
DH4801
DH4801 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DH4801 Standards:
DH4801 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DH4801 Horiz Ellip SD_N SD_E SD_h (unitless)
DH4801 -------------------------------------------------------------------
DH4801 NETWORK 0.58 1.18 0.14 0.29 0.60 0.12928000
DH4801 -------------------------------------------------------------------
DH4801
DH4801.The coordinates were established by GPS observations
DH4801.and adjusted by the National Geodetic Survey in June 2019.
DH4801
DH4801.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DH4801.been affixed to the stable North American Tectonic Plate.
DH4801
DH4801.The coordinates are valid at the epoch date displayed above
DH4801.which is a decimal equivalence of Year/Month/Day.
DH4801
DH4801.Due to the release of the International GNSS Service (IGS) 2014
DH4801.realization of the International Terrestrial Reference Frame of 2014
DH4801.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DH4801.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DH4801.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DH4801.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DH4801.currently published epoch of 2010.00.
DH4801
DH4801.Additional information on MYCS2 is available at
DH4801.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DH4801
DH4801.Significant digits in the geoid height do not necessarily reflect accuracy.
DH4801.GEOID18 height accuracy estimate available here.
DH4801
DH4801.The PID for the CORS L1 Phase Center is DH4802.
DH4801
DH4801.Click photographs - Photos may exist for this station.
DH4801
DH4801.The XYZ, and position/ellipsoidal ht. are equivalent.
DH4801
DH4801.The ellipsoidal height was determined by GPS observations
DH4801.and is referenced to NAD 83.
DH4801
DH4801. The following values were computed from the NAD 83(2011) position.
DH4801
DH4801; North East Units Scale Factor Converg.
DH4801;SPC TX C - 3,066,087.067 939,763.138 MT 0.99996969 +1 16 59.2
DH4801;SPC TX C -10,059,320.65 3,083,206.23 sFT 0.99996969 +1 16 59.2
DH4801;UTM 14 - 3,345,790.817 611,410.117 MT 0.99975313 +0 34 59.4
DH4801
DH4801! - Elev Factor x Scale Factor = Combined Factor
DH4801!SPC TX C - 0.99996723 x 0.99996969 = 0.99993692
DH4801!UTM 14 - 0.99996723 x 0.99975313 = 0.99972036
DH4801
DH4801_U.S. NATIONAL GRID SPATIAL ADDRESS: 14RPU1141045790(NAD 83)
DH4801
DH4801 SUPERSEDED SURVEY CONTROL
DH4801
DH4801 NAD 83(2011)- 30 14 18.93406(N) 097 50 31.64646(W) AD(2010.00) c
DH4801 ELLIP H (08/??/11) 208.702 (m) GP(2010.00) c c
DH4801 NAD 83(CORS)- 30 14 18.93384(N) 097 50 31.64672(W) AD(2002.00) c
DH4801 ELLIP H (08/??/05) 208.701 (m) GP(2002.00) c c
DH4801
DH4801.Superseded values are not recommended for survey control.
DH4801
DH4801.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DH4801.See file dsdata.pdf to determine how the superseded data were derived.
DH4801
DH4801_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DH4801
DH4801 STATION DESCRIPTION
DH4801
DH4801'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DH4801'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DH4801'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DH4801'ACCESSIBLE AT THE WORLDWIDE WEB.
DH4801'https://geodesy.noaa.gov/CORS/data.shtml
DH4801'https://geodesy.noaa.gov/CORS
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