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 16:57:17 EST
AF9492 ***********************************************************************
AF9492 HT_MOD - This is a Height Modernization Survey Station.
AF9492 CORS - This is a GPS Continuously Operating Reference Station.
AF9492 DESIGNATION - CAPE HENLOPEN 1 CORS ARP
AF9492 CORS_ID - CHL1
AF9492 PID - AF9492
AF9492 STATE/COUNTY- DE/SUSSEX
AF9492 COUNTRY - US
AF9492 USGS QUAD - CAPE HENLOPEN (2016)
AF9492
AF9492 *CURRENT SURVEY CONTROL
AF9492 ______________________________________________________________________
AF9492* NAD 83(2011) POSITION- 38 46 36.40701(N) 075 05 15.66190(W) ADJUSTED
AF9492* NAD 83(2011) ELLIP HT- -12.247 (meters) (06/??/19) ADJUSTED
AF9492* NAD 83(2011) EPOCH - 2010.00
AF9492* NAVD 88 ORTHO HEIGHT - 23.38 (meters) 76.7 (feet) GPS OBS
AF9492 ______________________________________________________________________
AF9492 NAVD 88 orthometric height was determined with an earlier geoid model
AF9492 GEOID HEIGHT - -35.635 (meters) GEOID18
AF9492 NAD 83(2011) X - 1,281,266.283 (meters) COMP
AF9492 NAD 83(2011) Y - -4,811,190.462 (meters) COMP
AF9492 NAD 83(2011) Z - 3,973,021.011 (meters) COMP
AF9492
AF9492 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
AF9492 Standards:
AF9492 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
AF9492 Horiz Ellip SD_N SD_E SD_h (unitless)
AF9492 -------------------------------------------------------------------
AF9492 NETWORK 0.20 0.56 0.09 0.07 0.29 0.12577200
AF9492 -------------------------------------------------------------------
AF9492
AF9492.The coordinates were established by GPS observations
AF9492.and adjusted by the National Geodetic Survey in June 2019.
AF9492
AF9492.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AF9492.been affixed to the stable North American Tectonic Plate.
AF9492
AF9492.The coordinates are valid at the epoch date displayed above
AF9492.which is a decimal equivalence of Year/Month/Day.
AF9492
AF9492.Due to the release of the International GNSS Service (IGS) 2014
AF9492.realization of the International Terrestrial Reference Frame of 2014
AF9492.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
AF9492.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
AF9492.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
AF9492.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
AF9492.currently published epoch of 2010.00.
AF9492
AF9492.Additional information on MYCS2 is available at
AF9492.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
AF9492
AF9492.The orthometric height was determined by GPS observations and a
AF9492.high-resolution geoid model using precise GPS observation and
AF9492.processing techniques.
AF9492
AF9492.Significant digits in the geoid height do not necessarily reflect accuracy.
AF9492.GEOID18 height accuracy estimate available here.
AF9492
AF9492.The PID for the CORS L1 Phase Center is AJ7863.
AF9492
AF9492.Click photographs - Photos may exist for this station.
AF9492
AF9492.The XYZ, and position/ellipsoidal ht. are equivalent.
AF9492
AF9492.The ellipsoidal height was determined by GPS observations
AF9492.and is referenced to NAD 83.
AF9492
AF9492. The following values were computed from the NAD 83(2011) position.
AF9492
AF9492; North East Units Scale Factor Converg.
AF9492;SPC DE - 86,276.505 228,587.816 MT 1.00000506 +0 12 21.7
AF9492;SPC DE - 283,058.83 749,958.53 sFT 1.00000506 +0 12 21.7
AF9492;UTM 18 - 4,292,009.714 492,383.501 MT 0.99960071 -0 03 17.7
AF9492
AF9492! - Elev Factor x Scale Factor = Combined Factor
AF9492!SPC DE - 1.00000192 x 1.00000506 = 1.00000698
AF9492!UTM 18 - 1.00000192 x 0.99960071 = 0.99960263
AF9492
AF9492_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH9238392009(NAD 83)
AF9492
AF9492 SUPERSEDED SURVEY CONTROL
AF9492
AF9492 ELLIP H (06/27/12) -12.237 (m) GP(2010.00) 0 0
AF9492 NAD 83(2011)- 38 46 36.40663(N) 075 05 15.66191(W) AD(2010.00) c
AF9492 NAD 83(2011)- 38 46 36.40700(N) 075 05 15.66181(W) AD(2010.00) c
AF9492 ELLIP H (08/??/11) -12.252 (m) GP(2010.00) c c
AF9492 ELLIP H (02/10/07) -12.203 (m) GP(2002.00)
AF9492 NAD 83(2007)- 38 46 36.40679(N) 075 05 15.66273(W) AD(2002.00) c
AF9492 NAD 83(CORS)- 38 46 36.40679(N) 075 05 15.66273(W) AD(2002.00) c
AF9492 ELLIP H (03/??/02) -12.203 (m) GP(2002.00) c c
AF9492 NAD 83(CORS)- 38 46 36.40716(N) 075 05 15.66304(W) AD(1997.00) c
AF9492 ELLIP H (04/??/96) -12.211 (m) GP(1997.00) c c
AF9492 NAD 83(CORS)- 38 46 36.40716(N) 075 05 15.66304(W) AD(1996.00) c
AF9492 ELLIP H (04/??/96) -12.211 (m) GP(1996.00) c c
AF9492
AF9492.Superseded values are not recommended for survey control.
AF9492
AF9492.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AF9492.See file dsdata.pdf to determine how the superseded data were derived.
AF9492
AF9492_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AF9492
AF9492 STATION DESCRIPTION
AF9492
AF9492'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
AF9492'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
AF9492'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
AF9492'ACCESSIBLE AT THE WORLDWIDE WEB.
AF9492'https://geodesy.noaa.gov/CORS/data.shtml
AF9492'https://geodesy.noaa.gov/CORS
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