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 22:54:12 EST
DM4625 ***********************************************************************
DM4625 HT_MOD - This is a Height Modernization Survey Station.
DM4625 CORS - This is a GPS Continuously Operating Reference Station.
DM4625 DESIGNATION - PLEASANT GRVE SCH CORS ARP
DM4625 CORS_ID - ALHC
DM4625 PID - DM4625
DM4625 STATE/COUNTY- AL/CLEBURNE
DM4625 COUNTRY - US
DM4625 USGS QUAD - HOLLIS CROSSROADS (2018)
DM4625
DM4625 *CURRENT SURVEY CONTROL
DM4625 ______________________________________________________________________
DM4625* NAD 83(2011) POSITION- 33 31 25.42307(N) 085 38 05.47268(W) ADJUSTED
DM4625* NAD 83(2011) ELLIP HT- 257.923 (meters) (06/??/19) ADJUSTED
DM4625* NAD 83(2011) EPOCH - 2010.00
DM4625* NAVD 88 ORTHO HEIGHT - 286.57 (meters) 940.2 (feet) GPS OBS
DM4625 ______________________________________________________________________
DM4625 GEOID HEIGHT - -28.653 (meters) GEOID18
DM4625 NAD 83(2011) X - 405,134.005 (meters) COMP
DM4625 NAD 83(2011) Y - -5,307,391.264 (meters) COMP
DM4625 NAD 83(2011) Z - 3,502,671.077 (meters) COMP
DM4625
DM4625 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DM4625 Standards:
DM4625 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DM4625 Horiz Ellip SD_N SD_E SD_h (unitless)
DM4625 -------------------------------------------------------------------
DM4625 NETWORK 0.20 0.28 0.04 0.10 0.14 -0.03972200
DM4625 -------------------------------------------------------------------
DM4625
DM4625.The coordinates were established by GPS observations
DM4625.and adjusted by the National Geodetic Survey in June 2019.
DM4625
DM4625.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DM4625.been affixed to the stable North American Tectonic Plate.
DM4625
DM4625.The coordinates are valid at the epoch date displayed above
DM4625.which is a decimal equivalence of Year/Month/Day.
DM4625
DM4625.Due to the release of the International GNSS Service (IGS) 2014
DM4625.realization of the International Terrestrial Reference Frame of 2014
DM4625.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DM4625.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DM4625.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DM4625.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DM4625.currently published epoch of 2010.00.
DM4625
DM4625.Additional information on MYCS2 is available at
DM4625.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DM4625
DM4625.The orthometric height was determined by GPS observations and a
DM4625.high-resolution geoid model using precise GPS observation and
DM4625.processing techniques.
DM4625
DM4625.Significant digits in the geoid height do not necessarily reflect accuracy.
DM4625.GEOID18 height accuracy estimate available here.
DM4625
DM4625.The PID for the CORS L1 Phase Center is DM4626.
DM4625
DM4625.Click photographs - Photos may exist for this station.
DM4625
DM4625.The XYZ, and position/ellipsoidal ht. are equivalent.
DM4625
DM4625.The ellipsoidal height was determined by GPS observations
DM4625.and is referenced to NAD 83.
DM4625
DM4625. The following values were computed from the NAD 83(2011) position.
DM4625
DM4625; North East Units Scale Factor Converg.
DM4625;SPC AL E - 335,296.822 218,437.492 MT 0.99996419 +0 06 34.6
DM4625;UTM 16 - 3,710,184.179 626,772.251 MT 0.99979813 +0 45 14.6
DM4625
DM4625! - Elev Factor x Scale Factor = Combined Factor
DM4625!SPC AL E - 0.99995951 x 0.99996419 = 0.99992370
DM4625!UTM 16 - 0.99995951 x 0.99979813 = 0.99975765
DM4625
DM4625_U.S. NATIONAL GRID SPATIAL ADDRESS: 16SFC2677210184(NAD 83)
DM4625
DM4625 SUPERSEDED SURVEY CONTROL
DM4625
DM4625 NAD 83(2011)- 33 31 25.42307(N) 085 38 05.47262(W) AD(2010.00) c
DM4625 ELLIP H (08/??/11) 257.915 (m) GP(2010.00) c c
DM4625 NAD 83(CORS)- 33 31 25.42363(N) 085 38 05.47359(W) AD(2002.00) c
DM4625 ELLIP H (12/??/10) 257.898 (m) GP(2002.00) c c
DM4625
DM4625.Superseded values are not recommended for survey control.
DM4625
DM4625.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DM4625.See file dsdata.pdf to determine how the superseded data were derived.
DM4625
DM4625_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DM4625
DM4625 STATION DESCRIPTION
DM4625
DM4625'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DM4625'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DM4625'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DM4625'ACCESSIBLE AT THE WORLDWIDE WEB.
DM4625'https://geodesy.noaa.gov/CORS/data.shtml
DM4625'https://geodesy.noaa.gov/CORS
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