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 18:41:43 EST
AF9531 ***********************************************************************
AF9531 HT_MOD - This is a Height Modernization Survey Station.
AF9531 CORS - This is a GPS Continuously Operating Reference Station.
AF9531 DESIGNATION - CAPE HENRY 1 CORS ARP
AF9531 CORS_ID - CHR1
AF9531 PID - AF9531
AF9531 STATE/COUNTY- VA/C OF VIRGINIA BEACH
AF9531 COUNTRY - US
AF9531 USGS QUAD - CAPE HENRY (2019)
AF9531
AF9531 *CURRENT SURVEY CONTROL
AF9531 ______________________________________________________________________
AF9531* NAD 83(2011) POSITION- 36 55 37.46113(N) 076 00 22.91772(W) ADJUSTED
AF9531* NAD 83(2011) ELLIP HT- -25.419 (meters) (06/??/19) ADJUSTED
AF9531* NAD 83(2011) EPOCH - 2010.00
AF9531* NAVD 88 ORTHO HEIGHT - 12.13 (meters) 39.8 (feet) GPS OBS
AF9531 ______________________________________________________________________
AF9531 NAVD 88 orthometric height was determined with an earlier geoid model
AF9531 GEOID HEIGHT - -37.544 (meters) GEOID18
AF9531 NAD 83(2011) X - 1,234,422.059 (meters) COMP
AF9531 NAD 83(2011) Y - -4,953,340.973 (meters) COMP
AF9531 NAD 83(2011) Z - 3,810,911.219 (meters) COMP
AF9531
AF9531 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
AF9531 Standards:
AF9531 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
AF9531 Horiz Ellip SD_N SD_E SD_h (unitless)
AF9531 -------------------------------------------------------------------
AF9531 NETWORK 0.12 0.36 0.05 0.04 0.18 -0.01828200
AF9531 -------------------------------------------------------------------
AF9531
AF9531.The coordinates were established by GPS observations
AF9531.and adjusted by the National Geodetic Survey in June 2019.
AF9531
AF9531.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AF9531.been affixed to the stable North American Tectonic Plate.
AF9531
AF9531.The coordinates are valid at the epoch date displayed above
AF9531.which is a decimal equivalence of Year/Month/Day.
AF9531
AF9531.Due to the release of the International GNSS Service (IGS) 2014
AF9531.realization of the International Terrestrial Reference Frame of 2014
AF9531.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
AF9531.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
AF9531.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
AF9531.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
AF9531.currently published epoch of 2010.00.
AF9531
AF9531.Additional information on MYCS2 is available at
AF9531.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
AF9531
AF9531.The orthometric height was determined by GPS observations and a
AF9531.high-resolution geoid model using precise GPS observation and
AF9531.processing techniques.
AF9531
AF9531.Significant digits in the geoid height do not necessarily reflect accuracy.
AF9531.GEOID18 height accuracy estimate available here.
AF9531
AF9531.The PID for the CORS L1 Phase Center is AJ7882.
AF9531
AF9531.Click photographs - Photos may exist for this station.
AF9531
AF9531.The XYZ, and position/ellipsoidal ht. are equivalent.
AF9531
AF9531.The ellipsoidal height was determined by GPS observations
AF9531.and is referenced to NAD 83.
AF9531
AF9531. The following values were computed from the NAD 83(2011) position.
AF9531
AF9531; North East Units Scale Factor Converg.
AF9531;SPC VA S - 1,068,823.864 3,722,142.887 MT 0.99997476 +1 30 48.4
AF9531;SPC VA S - 3,506,632.96 12,211,730.46 sFT 0.99997476 +1 30 48.4
AF9531;UTM 18 - 4,087,255.281 410,370.771 MT 0.99969896 -0 36 16.8
AF9531
AF9531! - Elev Factor x Scale Factor = Combined Factor
AF9531!SPC VA S - 1.00000399 x 0.99997476 = 0.99997875
AF9531!UTM 18 - 1.00000399 x 0.99969896 = 0.99970295
AF9531
AF9531_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVF1037087255(NAD 83)
AF9531
AF9531 SUPERSEDED SURVEY CONTROL
AF9531
AF9531 NAD 83(2011)- 36 55 37.46126(N) 076 00 22.91742(W) AD(2010.00) c
AF9531 ELLIP H (08/??/11) -25.424 (m) GP(2010.00) c c
AF9531 NAD 83(CORS)- 36 55 37.46225(N) 076 00 22.91809(W) AD(2002.00) c
AF9531 ELLIP H (03/??/02) -25.384 (m) GP(2002.00) c c
AF9531 NAD 83(CORS)- 36 55 37.46316(N) 076 00 22.91840(W) AD(1997.00) c
AF9531 ELLIP H (04/??/96) -25.401 (m) GP(1997.00) c c
AF9531 NAD 83(CORS)- 36 55 37.46316(N) 076 00 22.91840(W) AD(1996.00) c
AF9531 ELLIP H (04/??/96) -25.401 (m) GP(1996.00) c c
AF9531
AF9531.Superseded values are not recommended for survey control.
AF9531
AF9531.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AF9531.See file dsdata.pdf to determine how the superseded data were derived.
AF9531
AF9531_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AF9531
AF9531 STATION DESCRIPTION
AF9531
AF9531'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
AF9531'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
AF9531'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
AF9531'ACCESSIBLE AT THE WORLDWIDE WEB.
AF9531'https://geodesy.noaa.gov/CORS/data.shtml
AF9531'https://geodesy.noaa.gov/CORS
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