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 19, 2025 10:12:04 EST
DI2230 ***********************************************************************
DI2230 CORS - This is a GPS Continuously Operating Reference Station.
DI2230 DESIGNATION - ALDOT 7 DIV OFF CORS ARP
DI2230 CORS_ID - AL70
DI2230 PID - DI2230
DI2230 STATE/COUNTY- AL/PIKE
DI2230 COUNTRY - US
DI2230 USGS QUAD - TROY (2018)
DI2230
DI2230 *CURRENT SURVEY CONTROL
DI2230 ______________________________________________________________________
DI2230* NAD 83(2011) POSITION- 31 46 57.86789(N) 085 57 54.51816(W) ADJUSTED
DI2230* NAD 83(2011) ELLIP HT- 143.301 (meters) (06/??/19) ADJUSTED
DI2230* NAD 83(2011) EPOCH - 2010.00
DI2230* NAVD 88 ORTHO HEIGHT - 169.804 (meters) 557.10 (feet) ADJUSTED
DI2230 ______________________________________________________________________
DI2230 GEOID HEIGHT - -26.503 (meters) GEOID18
DI2230 NAD 83(2011) X - 381,855.288 (meters) COMP
DI2230 NAD 83(2011) Y - -5,413,456.439 (meters) COMP
DI2230 NAD 83(2011) Z - 3,340,052.653 (meters) COMP
DI2230 VERT ORDER - SECOND CLASS I
DI2230
DI2230 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DI2230 Standards:
DI2230 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DI2230 Horiz Ellip SD_N SD_E SD_h (unitless)
DI2230 -------------------------------------------------------------------
DI2230 NETWORK 0.18 0.50 0.08 0.07 0.26 0.03855200
DI2230 -------------------------------------------------------------------
DI2230
DI2230.The coordinates were established by GPS observations
DI2230.and adjusted by the National Geodetic Survey in June 2019.
DI2230
DI2230.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DI2230.been affixed to the stable North American Tectonic Plate.
DI2230
DI2230.The coordinates are valid at the epoch date displayed above
DI2230.which is a decimal equivalence of Year/Month/Day.
DI2230
DI2230.Due to the release of the International GNSS Service (IGS) 2014
DI2230.realization of the International Terrestrial Reference Frame of 2014
DI2230.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DI2230.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DI2230.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DI2230.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DI2230.currently published epoch of 2010.00.
DI2230
DI2230.Additional information on MYCS2 is available at
DI2230.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DI2230
DI2230.The orthometric height was determined by differential leveling and
DI2230.adjusted by the NATIONAL GEODETIC SURVEY
DI2230.in December 2011.
DI2230
DI2230.No vertical observational check was made to the station.
DI2230
DI2230.Significant digits in the geoid height do not necessarily reflect accuracy.
DI2230.GEOID18 height accuracy estimate available here.
DI2230
DI2230.The PID for the CORS L1 Phase Center is DI2231.
DI2230
DI2230.Click photographs - Photos may exist for this station.
DI2230
DI2230.The XYZ, and position/ellipsoidal ht. are equivalent.
DI2230
DI2230.The ellipsoidal height was determined by GPS observations
DI2230.and is referenced to NAD 83.
DI2230
DI2230. The following values were computed from the NAD 83(2011) position.
DI2230
DI2230; North East Units Scale Factor Converg.
DI2230;SPC AL E - 142,221.840 187,516.017 MT 0.99996192 -0 04 09.9
DI2230;UTM 16 - 3,516,820.669 597,979.862 MT 0.99971840 +0 32 42.4
DI2230
DI2230! - Elev Factor x Scale Factor = Combined Factor
DI2230!SPC AL E - 0.99997750 x 0.99996192 = 0.99993942
DI2230!UTM 16 - 0.99997750 x 0.99971840 = 0.99969591
DI2230
DI2230_U.S. NATIONAL GRID SPATIAL ADDRESS: 16REA9797916820(NAD 83)
DI2230
DI2230 SUPERSEDED SURVEY CONTROL
DI2230
DI2230 NAD 83(2011)- 31 46 57.86783(N) 085 57 54.51813(W) AD(2010.00) c
DI2230 ELLIP H (08/??/11) 143.296 (m) GP(2010.00) c c
DI2230 NAD 83(CORS)- 31 46 57.86796(N) 085 57 54.51855(W) AD(2002.00) c
DI2230 ELLIP H (11/??/06) 143.315 (m) GP(2002.00) c c
DI2230
DI2230.Superseded values are not recommended for survey control.
DI2230
DI2230.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DI2230.See file dsdata.pdf to determine how the superseded data were derived.
DI2230
DI2230_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DI2230
DI2230 STATION DESCRIPTION
DI2230
DI2230'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DI2230'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DI2230'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DI2230'ACCESSIBLE AT THE WORLDWIDE WEB.
DI2230'https://geodesy.noaa.gov/CORS/data.shtml
DI2230'https://geodesy.noaa.gov/CORS
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