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 00:43:33 EST
AJ4426 ***********************************************************************
AJ4426 HT_MOD - This is a Height Modernization Survey Station.
AJ4426 CORS - This is a GPS Continuously Operating Reference Station.
AJ4426 DESIGNATION - ANNAPOLIS 1 CORS ARP
AJ4426 CORS_ID - ANP1
AJ4426 PID - AJ4426
AJ4426 STATE/COUNTY- MD/ANNE ARUNDEL
AJ4426 COUNTRY - US
AJ4426 USGS QUAD - ROUND BAY (2016)
AJ4426
AJ4426 *CURRENT SURVEY CONTROL
AJ4426 ______________________________________________________________________
AJ4426* NAD 83(2011) POSITION- 39 00 37.00419(N) 076 36 33.28070(W) ADJUSTED
AJ4426* NAD 83(2011) ELLIP HT- 21.529 (meters) (06/??/19) ADJUSTED
AJ4426* NAD 83(2011) EPOCH - 2010.00
AJ4426* NAVD 88 ORTHO HEIGHT - 54.56 (meters) 179.0 (feet) GPS OBS
AJ4426 ______________________________________________________________________
AJ4426 NAVD 88 orthometric height was determined with geoid model GEOID99
AJ4426 GEOID HEIGHT - -32.981 (meters) GEOID99
AJ4426 GEOID HEIGHT - -33.007 (meters) GEOID18
AJ4426 NAD 83(2011) X - 1,149,299.205 (meters) COMP
AJ4426 NAD 83(2011) Y - -4,827,708.227 (meters) COMP
AJ4426 NAD 83(2011) Z - 3,993,217.329 (meters) COMP
AJ4426
AJ4426 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
AJ4426 Standards:
AJ4426 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
AJ4426 Horiz Ellip SD_N SD_E SD_h (unitless)
AJ4426 -------------------------------------------------------------------
AJ4426 NETWORK 0.15 0.42 0.06 0.07 0.21 -0.08882300
AJ4426 -------------------------------------------------------------------
AJ4426
AJ4426.The coordinates were established by GPS observations
AJ4426.and adjusted by the National Geodetic Survey in June 2019.
AJ4426
AJ4426.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AJ4426.been affixed to the stable North American Tectonic Plate.
AJ4426
AJ4426.The coordinates are valid at the epoch date displayed above
AJ4426.which is a decimal equivalence of Year/Month/Day.
AJ4426
AJ4426.Due to the release of the International GNSS Service (IGS) 2014
AJ4426.realization of the International Terrestrial Reference Frame of 2014
AJ4426.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
AJ4426.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
AJ4426.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
AJ4426.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
AJ4426.currently published epoch of 2010.00.
AJ4426
AJ4426.Additional information on MYCS2 is available at
AJ4426.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
AJ4426
AJ4426.The orthometric height was determined by GPS observations and a
AJ4426.high-resolution geoid model using precise GPS observation and
AJ4426.processing techniques.
AJ4426
AJ4426.Significant digits in the geoid height do not necessarily reflect accuracy.
AJ4426.GEOID18 height accuracy estimate available here.
AJ4426
AJ4426.The PID for the CORS L1 Phase Center is AJ4427.
AJ4426
AJ4426.Click photographs - Photos may exist for this station.
AJ4426
AJ4426.The XYZ, and position/ellipsoidal ht. are equivalent.
AJ4426
AJ4426.The ellipsoidal height was determined by GPS observations
AJ4426.and is referenced to NAD 83.
AJ4426
AJ4426. The following values were computed from the NAD 83(2011) position.
AJ4426
AJ4426; North East Units Scale Factor Converg.
AJ4426;SPC MD - 149,219.708 433,843.126 MT 0.99995259 +0 14 42.9
AJ4426;SPC MD - 489,564.99 1,423,366.99 sFT 0.99995259 +0 14 42.9
AJ4426;UTM 18 - 4,319,149.073 360,669.004 MT 0.99983904 -1 00 47.2
AJ4426
AJ4426! - Elev Factor x Scale Factor = Combined Factor
AJ4426!SPC MD - 0.99999662 x 0.99995259 = 0.99994921
AJ4426!UTM 18 - 0.99999662 x 0.99983904 = 0.99983566
AJ4426
AJ4426_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ6066919149(NAD 83)
AJ4426
AJ4426 SUPERSEDED SURVEY CONTROL
AJ4426
AJ4426 ELLIP H (06/27/12) 21.534 (m) GP(2010.00) 0 0
AJ4426 NAD 83(2011)- 39 00 37.00410(N) 076 36 33.28057(W) AD(2010.00) c
AJ4426 NAD 83(2011)- 39 00 37.00424(N) 076 36 33.28075(W) AD(2010.00) c
AJ4426 ELLIP H (08/??/11) 21.524 (m) GP(2010.00) c c
AJ4426 ELLIP H (02/10/07) 21.545 (m) GP(2002.00)
AJ4426 NAD 83(2007)- 39 00 37.00436(N) 076 36 33.28161(W) AD(2002.00) c
AJ4426 NAD 83(CORS)- 39 00 37.00436(N) 076 36 33.28161(W) AD(2002.00) c
AJ4426 ELLIP H (03/??/02) 21.545 (m) GP(2002.00) c c
AJ4426 NAD 83(CORS)- 39 00 37.00435(N) 076 36 33.28160(W) AD(1997.00) c
AJ4426 ELLIP H (07/??/01) 21.545 (m) GP(1997.00) c c
AJ4426
AJ4426.Superseded values are not recommended for survey control.
AJ4426
AJ4426.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AJ4426.See file dsdata.pdf to determine how the superseded data were derived.
AJ4426
AJ4426_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AJ4426_MAGNETIC: N = NO MAGNETIC MATERIAL
AJ4426
AJ4426 STATION DESCRIPTION
AJ4426
AJ4426'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
AJ4426'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
AJ4426'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
AJ4426'ACCESSIBLE AT THE WORLDWIDE WEB.
AJ4426'https://geodesy.noaa.gov/CORS/data.shtml
AJ4426'https://geodesy.noaa.gov/CORS
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