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 16:56:43 EST
DH6924 ***********************************************************************
DH6924 HT_MOD - This is a Height Modernization Survey Station.
DH6924 CORS - This is a GPS Continuously Operating Reference Station.
DH6924 DESIGNATION - EDA FOLSOM COOP CORS ARP
DH6924 CORS_ID - EDFF
DH6924 PID - DH6924
DH6924 STATE/COUNTY- AL/CULLMAN
DH6924 COUNTRY - US
DH6924 USGS QUAD - EVA (2018)
DH6924
DH6924 *CURRENT SURVEY CONTROL
DH6924 ______________________________________________________________________
DH6924* NAD 83(2011) POSITION- 34 16 04.52243(N) 086 51 37.90173(W) ADJUSTED
DH6924* NAD 83(2011) ELLIP HT- 270.859 (meters) (06/??/19) ADJUSTED
DH6924* NAD 83(2011) EPOCH - 2010.00
DH6924* NAVD 88 ORTHO HEIGHT - 298.83 (meters) 980.4 (feet) GPS OBS
DH6924 ______________________________________________________________________
DH6924 NAVD 88 orthometric height was determined with geoid model GEOID03
DH6924 GEOID HEIGHT - -27.990 (meters) GEOID03
DH6924 GEOID HEIGHT - -27.983 (meters) GEOID18
DH6924 NAD 83(2011) X - 288,993.261 (meters) COMP
DH6924 NAD 83(2011) Y - -5,268,886.264 (meters) COMP
DH6924 NAD 83(2011) Z - 3,571,198.542 (meters) COMP
DH6924
DH6924.Formal positional accuracy estimates are not available for this CORS
DH6924.because its coordinates were determined in part using modeled
DH6924.velocities. Approximate one-sigma accuracies for latitude, longitude,
DH6924.and ellipsoid height can be obtained from the short-term time series.
DH6924.Additional information regarding modeled velocities is available on
DH6924.the CORS Coordinates for MYCS2 web page:
DH6924.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DH6924
DH6924.The coordinates were established by GPS observations
DH6924.and adjusted by the National Geodetic Survey in June 2019.
DH6924
DH6924.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DH6924.been affixed to the stable North American Tectonic Plate.
DH6924
DH6924.The coordinates are valid at the epoch date displayed above
DH6924.which is a decimal equivalence of Year/Month/Day.
DH6924
DH6924.Due to the release of the International GNSS Service (IGS) 2014
DH6924.realization of the International Terrestrial Reference Frame of 2014
DH6924.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DH6924.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DH6924.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DH6924.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DH6924.currently published epoch of 2010.00.
DH6924
DH6924.Additional information on MYCS2 is available at
DH6924.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DH6924
DH6924.The orthometric height was determined by GPS observations and a
DH6924.high-resolution geoid model using precise GPS observation and
DH6924.processing techniques.
DH6924
DH6924.Significant digits in the geoid height do not necessarily reflect accuracy.
DH6924.GEOID18 height accuracy estimate available here.
DH6924
DH6924.The PID for the CORS L1 Phase Center is DK8099.
DH6924
DH6924.Click photographs - Photos may exist for this station.
DH6924
DH6924.The XYZ, and position/ellipsoidal ht. are equivalent.
DH6924
DH6924.The ellipsoidal height was determined by GPS observations
DH6924.and is referenced to NAD 83.
DH6924
DH6924. The following values were computed from the NAD 83(2011) position.
DH6924
DH6924; North East Units Scale Factor Converg.
DH6924;SPC AL W - 473,420.828 658,887.862 MT 0.99997606 +0 21 36.3
DH6924;UTM 16 - 3,791,872.185 512,839.340 MT 0.99960203 +0 04 42.7
DH6924
DH6924! - Elev Factor x Scale Factor = Combined Factor
DH6924!SPC AL W - 0.99995748 x 0.99997606 = 0.99993354
DH6924!UTM 16 - 0.99995748 x 0.99960203 = 0.99955953
DH6924
DH6924_U.S. NATIONAL GRID SPATIAL ADDRESS: 16SEC1283991872(NAD 83)
DH6924
DH6924 SUPERSEDED SURVEY CONTROL
DH6924
DH6924 ELLIP H (06/27/12) 270.842 (m) GP(2010.00) 0 0
DH6924 NAD 83(2011)- 34 16 04.52263(N) 086 51 37.90151(W) AD(2010.00) c
DH6924 NAD 83(2011)- 34 16 04.52242(N) 086 51 37.90170(W) AD(2010.00) c
DH6924 ELLIP H (08/??/11) 270.858 (m) GP(2010.00) c c
DH6924 NAD 83(CORS)- 34 16 04.52252(N) 086 51 37.90180(W) AD(2002.00) c
DH6924 ELLIP H (11/??/05) 270.857 (m) GP(2002.00) c c
DH6924
DH6924.Superseded values are not recommended for survey control.
DH6924
DH6924.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DH6924.See file dsdata.pdf to determine how the superseded data were derived.
DH6924
DH6924_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DH6924
DH6924 STATION DESCRIPTION
DH6924
DH6924'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DH6924'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DH6924'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DH6924'ACCESSIBLE AT THE WORLDWIDE WEB.
DH6924'https://geodesy.noaa.gov/CORS/data.shtml
DH6924'https://geodesy.noaa.gov/CORS
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