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 20, 2025 07:49:24 EST
AF9680 ***********************************************************************
AF9680 HT_MOD - This is a Height Modernization Survey Station.
AF9680 CORS - This is a GPS Continuously Operating Reference Station.
AF9680 DESIGNATION - DOVER DNRC CORS ARP
AF9680 CORS_ID - DNRC
AF9680 PID - AF9680
AF9680 STATE/COUNTY- DE/KENT
AF9680 COUNTRY - US
AF9680 USGS QUAD - DOVER (2016)
AF9680
AF9680 *CURRENT SURVEY CONTROL
AF9680 ______________________________________________________________________
AF9680* NAD 83(2011) POSITION- 39 09 36.28527(N) 075 31 24.94486(W) ADJUSTED
AF9680* NAD 83(2011) ELLIP HT- -13.890 (meters) (04/??/22) ADJUSTED
AF9680* NAD 83(2011) EPOCH - 2010.00
AF9680* NAVD 88 ORTHO HEIGHT - 20.49 (meters) 67.2 (feet) GPS OBS
AF9680 ______________________________________________________________________
AF9680 NAVD 88 orthometric height was determined with an earlier geoid model
AF9680 GEOID HEIGHT - -34.390 (meters) GEOID18
AF9680 NAD 83(2011) X - 1,237,935.605 (meters) COMP
AF9680 NAD 83(2011) Y - -4,794,887.035 (meters) COMP
AF9680 NAD 83(2011) Z - 4,006,103.674 (meters) COMP
AF9680
AF9680 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
AF9680 Standards:
AF9680 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
AF9680 Horiz Ellip SD_N SD_E SD_h (unitless)
AF9680 -------------------------------------------------------------------
AF9680 NETWORK 0.17 0.34 0.05 0.08 0.17 -0.37939100
AF9680 -------------------------------------------------------------------
AF9680
AF9680.The coordinates were established by GPS observations
AF9680.and adjusted by the National Geodetic Survey in April 2022.
AF9680
AF9680.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AF9680.been affixed to the stable North American Tectonic Plate.
AF9680
AF9680.The coordinates are valid at the epoch date displayed above
AF9680.which is a decimal equivalence of Year/Month/Day.
AF9680
AF9680.Due to the release of the International GNSS Service (IGS) 2014
AF9680.realization of the International Terrestrial Reference Frame of 2014
AF9680.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
AF9680.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
AF9680.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
AF9680.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
AF9680.currently published epoch of 2010.00.
AF9680
AF9680.Additional information on MYCS2 is available at
AF9680.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
AF9680
AF9680.The orthometric height was determined by GPS observations and a
AF9680.high-resolution geoid model using precise GPS observation and
AF9680.processing techniques.
AF9680
AF9680.Significant digits in the geoid height do not necessarily reflect accuracy.
AF9680.GEOID18 height accuracy estimate available here.
AF9680
AF9680.The PID for the CORS L1 Phase Center is DR8274.
AF9680
AF9680.Click photographs - Photos may exist for this station.
AF9680
AF9680.The XYZ, and position/ellipsoidal ht. are equivalent.
AF9680
AF9680.The ellipsoidal height was determined by GPS observations
AF9680.and is referenced to NAD 83.
AF9680
AF9680. The following values were computed from the NAD 83(2011) position.
AF9680
AF9680; North East Units Scale Factor Converg.
AF9680;SPC DE - 128,782.286 190,758.068 MT 0.99999605 -0 04 03.1
AF9680;SPC DE - 422,513.22 625,845.43 sFT 0.99999605 -0 04 03.1
AF9680;UTM 18 - 4,334,671.523 454,763.133 MT 0.99962520 -0 19 50.3
AF9680
AF9680! - Elev Factor x Scale Factor = Combined Factor
AF9680!SPC DE - 1.00000218 x 0.99999605 = 0.99999823
AF9680!UTM 18 - 1.00000218 x 0.99962520 = 0.99962738
AF9680
AF9680_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVJ5476334671(NAD 83)
AF9680
AF9680 SUPERSEDED SURVEY CONTROL
AF9680
AF9680 NAD 83(2011)- 39 09 36.28526(N) 075 31 24.94487(W) AD(2010.00) c
AF9680 ELLIP H (06/??/19) -13.913 (m) GP(2010.00) c c
AF9680 ELLIP H (06/27/12) -13.886 (m) GP(2010.00) 0 0
AF9680 NAD 83(2011)- 39 09 36.28535(N) 075 31 24.94481(W) AD(2010.00) c
AF9680 NAD 83(2011)- 39 09 36.28521(N) 075 31 24.94482(W) AD(2010.00) c
AF9680 ELLIP H (08/??/11) -13.915 (m) GP(2010.00) c c
AF9680 ELLIP H (02/10/07) -13.869 (m) GP(2002.00)
AF9680 NAD 83(2007)- 39 09 36.28555(N) 075 31 24.94543(W) AD(2002.00) c
AF9680 NAD 83(CORS)- 39 09 36.28555(N) 075 31 24.94543(W) AD(2002.00) c
AF9680 ELLIP H (03/??/02) -13.869 (m) GP(2002.00) c c
AF9680 NAD 83(CORS)- 39 09 36.28577(N) 075 31 24.94556(W) AD(1997.00) c
AF9680 ELLIP H (07/??/98) -13.867 (m) GP(1997.00) c c
AF9680
AF9680.Superseded values are not recommended for survey control.
AF9680
AF9680.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AF9680.See file dsdata.pdf to determine how the superseded data were derived.
AF9680
AF9680_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AF9680
AF9680 STATION DESCRIPTION
AF9680
AF9680'DESCRIBED BY NATIONAL GEODETIC SURVEY 2022
AF9680'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
AF9680'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
AF9680'ACCESSIBLE AT THE WORLDWIDE WEB.
AF9680'https://geodesy.noaa.gov/CORS/data.shtml
AF9680'https://geodesy.noaa.gov/CORS
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