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 17:07:17 EST
DI2228 ***********************************************************************
DI2228 CORS - This is a GPS Continuously Operating Reference Station.
DI2228 DESIGNATION - ALDOT 5 DIV OFF CORS ARP
DI2228 CORS_ID - AL50
DI2228 PID - DI2228
DI2228 STATE/COUNTY- AL/TUSCALOOSA
DI2228 COUNTRY - US
DI2228 USGS QUAD - TUSCALOOSA (2018)
DI2228
DI2228 *CURRENT SURVEY CONTROL
DI2228 ______________________________________________________________________
DI2228* NAD 83(2011) POSITION- 33 10 04.68509(N) 087 30 05.42645(W) ADJUSTED
DI2228* NAD 83(2011) ELLIP HT- 99.221 (meters) (06/??/19) ADJUSTED
DI2228* NAD 83(2011) EPOCH - 2010.00
DI2228 ______________________________________________________________________
DI2228 GEOID HEIGHT - -29.023 (meters) GEOID18
DI2228 NAD 83(2011) X - 232,978.509 (meters) COMP
DI2228 NAD 83(2011) Y - -5,339,308.517 (meters) COMP
DI2228 NAD 83(2011) Z - 3,469,621.339 (meters) COMP
DI2228
DI2228 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DI2228 Standards:
DI2228 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DI2228 Horiz Ellip SD_N SD_E SD_h (unitless)
DI2228 -------------------------------------------------------------------
DI2228 NETWORK 0.25 0.58 0.07 0.12 0.29 -0.03526900
DI2228 -------------------------------------------------------------------
DI2228
DI2228.The coordinates were established by GPS observations
DI2228.and adjusted by the National Geodetic Survey in June 2019.
DI2228
DI2228.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DI2228.been affixed to the stable North American Tectonic Plate.
DI2228
DI2228.The coordinates are valid at the epoch date displayed above
DI2228.which is a decimal equivalence of Year/Month/Day.
DI2228
DI2228.Due to the release of the International GNSS Service (IGS) 2014
DI2228.realization of the International Terrestrial Reference Frame of 2014
DI2228.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DI2228.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DI2228.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DI2228.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DI2228.currently published epoch of 2010.00.
DI2228
DI2228.Additional information on MYCS2 is available at
DI2228.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DI2228
DI2228.Significant digits in the geoid height do not necessarily reflect accuracy.
DI2228.GEOID18 height accuracy estimate available here.
DI2228
DI2228.The PID for the CORS L1 Phase Center is DM3329.
DI2228
DI2228.Click photographs - Photos may exist for this station.
DI2228
DI2228.The XYZ, and position/ellipsoidal ht. are equivalent.
DI2228
DI2228.The ellipsoidal height was determined by GPS observations
DI2228.and is referenced to NAD 83.
DI2228
DI2228. The following values were computed from the NAD 83(2011) position.
DI2228
DI2228; North East Units Scale Factor Converg.
DI2228;SPC AL W - 351,239.889 599,859.410 MT 0.99993333 -0 00 03.0
DI2228;UTM 16 - 3,670,020.114 453,240.003 MT 0.99962696 -0 16 27.8
DI2228
DI2228! - Elev Factor x Scale Factor = Combined Factor
DI2228!SPC AL W - 0.99998442 x 0.99993333 = 0.99991775
DI2228!UTM 16 - 0.99998442 x 0.99962696 = 0.99961139
DI2228
DI2228_U.S. NATIONAL GRID SPATIAL ADDRESS: 16SDB5324070020(NAD 83)
DI2228
DI2228 SUPERSEDED SURVEY CONTROL
DI2228
DI2228 NAD 83(2011)- 33 10 04.68517(N) 087 30 05.42637(W) AD(2010.00) c
DI2228 ELLIP H (08/??/11) 99.220 (m) GP(2010.00) c c
DI2228 NAD 83(CORS)- 33 10 04.68577(N) 087 30 05.42684(W) AD(2002.00) c
DI2228 ELLIP H (11/??/06) 99.212 (m) GP(2002.00) c c
DI2228
DI2228.Superseded values are not recommended for survey control.
DI2228
DI2228.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DI2228.See file dsdata.pdf to determine how the superseded data were derived.
DI2228
DI2228_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DI2228
DI2228 STATION DESCRIPTION
DI2228
DI2228'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DI2228'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DI2228'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DI2228'ACCESSIBLE AT THE WORLDWIDE WEB.
DI2228'https://geodesy.noaa.gov/CORS/data.shtml
DI2228'https://geodesy.noaa.gov/CORS
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