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 15:38:27 EST
DK7412 ***********************************************************************
DK7412 CORS - This is a GPS Continuously Operating Reference Station.
DK7412 DESIGNATION - HUNTSVILLE GIS CORS ARP
DK7412 CORS_ID - HGIS
DK7412 PID - DK7412
DK7412 STATE/COUNTY- AL/MADISON
DK7412 COUNTRY - US
DK7412 USGS QUAD - HUNTSVILLE (2018)
DK7412
DK7412 *CURRENT SURVEY CONTROL
DK7412 ______________________________________________________________________
DK7412* NAD 83(2011) POSITION- 34 43 41.17628(N) 086 35 12.06184(W) ADJUSTED
DK7412* NAD 83(2011) ELLIP HT- 177.736 (meters) (06/??/19) ADJUSTED
DK7412* NAD 83(2011) EPOCH - 2010.00
DK7412 ______________________________________________________________________
DK7412 GEOID HEIGHT - -28.723 (meters) GEOID18
DK7412 NAD 83(2011) X - 312,446.390 (meters) COMP
DK7412 NAD 83(2011) Y - -5,238,505.801 (meters) COMP
DK7412 NAD 83(2011) Z - 3,613,218.659 (meters) COMP
DK7412
DK7412 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DK7412 Standards:
DK7412 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DK7412 Horiz Ellip SD_N SD_E SD_h (unitless)
DK7412 -------------------------------------------------------------------
DK7412 NETWORK 0.14 0.39 0.05 0.07 0.20 0.08290000
DK7412 -------------------------------------------------------------------
DK7412
DK7412.The coordinates were established by GPS observations
DK7412.and adjusted by the National Geodetic Survey in June 2019.
DK7412
DK7412.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DK7412.been affixed to the stable North American Tectonic Plate.
DK7412
DK7412.The coordinates are valid at the epoch date displayed above
DK7412.which is a decimal equivalence of Year/Month/Day.
DK7412
DK7412.Due to the release of the International GNSS Service (IGS) 2014
DK7412.realization of the International Terrestrial Reference Frame of 2014
DK7412.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DK7412.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DK7412.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DK7412.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DK7412.currently published epoch of 2010.00.
DK7412
DK7412.Additional information on MYCS2 is available at
DK7412.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DK7412
DK7412.Significant digits in the geoid height do not necessarily reflect accuracy.
DK7412.GEOID18 height accuracy estimate available here.
DK7412
DK7412.The PID for the CORS L1 Phase Center is DK7413.
DK7412
DK7412.Click photographs - Photos may exist for this station.
DK7412
DK7412.The XYZ, and position/ellipsoidal ht. are equivalent.
DK7412
DK7412.The ellipsoidal height was determined by GPS observations
DK7412.and is referenced to NAD 83.
DK7412
DK7412. The following values were computed from the NAD 83(2011) position.
DK7412
DK7412; North East Units Scale Factor Converg.
DK7412;SPC AL E - 469,127.265 131,003.356 MT 1.00001865 -0 25 45.1
DK7412;UTM 16 - 3,842,969.319 537,840.232 MT 0.99961765 +0 14 07.7
DK7412
DK7412! - Elev Factor x Scale Factor = Combined Factor
DK7412!SPC AL E - 0.99997210 x 1.00001865 = 0.99999075
DK7412!UTM 16 - 0.99997210 x 0.99961765 = 0.99958976
DK7412
DK7412_U.S. NATIONAL GRID SPATIAL ADDRESS: 16SED3784042969(NAD 83)
DK7412
DK7412 SUPERSEDED SURVEY CONTROL
DK7412
DK7412 NAD 83(2011)- 34 43 41.17629(N) 086 35 12.06178(W) AD(2010.00) c
DK7412 ELLIP H (08/??/11) 177.731 (m) GP(2010.00) c c
DK7412 NAD 83(CORS)- 34 43 41.17651(N) 086 35 12.06246(W) AD(2002.00) c
DK7412 ELLIP H (11/??/08) 177.743 (m) GP(2002.00) c c
DK7412
DK7412.Superseded values are not recommended for survey control.
DK7412
DK7412.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DK7412.See file dsdata.pdf to determine how the superseded data were derived.
DK7412
DK7412_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DK7412
DK7412 STATION DESCRIPTION
DK7412
DK7412'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DK7412'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DK7412'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DK7412'ACCESSIBLE AT THE WORLDWIDE WEB.
DK7412'https://geodesy.noaa.gov/CORS/data.shtml
DK7412'https://geodesy.noaa.gov/CORS
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