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 17, 2025 15:25:06 EST
DM7840 ***********************************************************************
DM7840 HT_MOD - This is a Height Modernization Survey Station.
DM7840 CORS - This is a GPS Continuously Operating Reference Station.
DM7840 DESIGNATION - HARDWICK CORS ARP
DM7840 CORS_ID - VTHA
DM7840 PID - DM7840
DM7840 STATE/COUNTY- VT/CALEDONIA
DM7840 COUNTRY - US
DM7840 USGS QUAD - CASPIAN LAKE (2018)
DM7840
DM7840 *CURRENT SURVEY CONTROL
DM7840 ______________________________________________________________________
DM7840* NAD 83(2011) POSITION- 44 30 30.69554(N) 072 21 57.16361(W) ADJUSTED
DM7840* NAD 83(2011) ELLIP HT- 256.827 (meters) (06/??/19) ADJUSTED
DM7840* NAD 83(2011) EPOCH - 2010.00
DM7840* NAVD 88 ORTHO HEIGHT - 284.39 (meters) 933.0 (feet) GPS OBS
DM7840 ______________________________________________________________________
DM7840 NAVD 88 orthometric height was determined with an earlier geoid model
DM7840 GEOID HEIGHT - -27.572 (meters) GEOID18
DM7840 NAD 83(2011) X - 1,380,252.038 (meters) COMP
DM7840 NAD 83(2011) Y - -4,342,132.081 (meters) COMP
DM7840 NAD 83(2011) Z - 4,448,743.975 (meters) COMP
DM7840
DM7840 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DM7840 Standards:
DM7840 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DM7840 Horiz Ellip SD_N SD_E SD_h (unitless)
DM7840 -------------------------------------------------------------------
DM7840 NETWORK 0.10 0.28 0.04 0.04 0.14 -0.18148400
DM7840 -------------------------------------------------------------------
DM7840
DM7840.The coordinates were established by GPS observations
DM7840.and adjusted by the National Geodetic Survey in June 2019.
DM7840
DM7840.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DM7840.been affixed to the stable North American Tectonic Plate.
DM7840
DM7840.The coordinates are valid at the epoch date displayed above
DM7840.which is a decimal equivalence of Year/Month/Day.
DM7840
DM7840.Due to the release of the International GNSS Service (IGS) 2014
DM7840.realization of the International Terrestrial Reference Frame of 2014
DM7840.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DM7840.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DM7840.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DM7840.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DM7840.currently published epoch of 2010.00.
DM7840
DM7840.Additional information on MYCS2 is available at
DM7840.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DM7840
DM7840.The orthometric height was determined by GPS observations and a
DM7840.high-resolution geoid model using precise GPS observation and
DM7840.processing techniques.
DM7840
DM7840.Significant digits in the geoid height do not necessarily reflect accuracy.
DM7840.GEOID18 height accuracy estimate available here.
DM7840
DM7840.The PID for the CORS L1 Phase Center is DM7841.
DM7840
DM7840.Click photographs - Photos may exist for this station.
DM7840
DM7840.The XYZ, and position/ellipsoidal ht. are equivalent.
DM7840
DM7840.The ellipsoidal height was determined by GPS observations
DM7840.and is referenced to NAD 83.
DM7840
DM7840. The following values were computed from the NAD 83(2011) position.
DM7840
DM7840; North East Units Scale Factor Converg.
DM7840;SPC VT - 223,153.249 510,664.666 MT 0.99996568 +0 05 38.5
DM7840;SPC VT - 732,128.62 1,675,405.66 sFT 0.99996568 +0 05 38.5
DM7840;UTM 18 - 4,931,731.461 709,377.559 MT 1.00013915 +1 50 50.0
DM7840
DM7840! - Elev Factor x Scale Factor = Combined Factor
DM7840!SPC VT - 0.99995973 x 0.99996568 = 0.99992541
DM7840!UTM 18 - 0.99995973 x 1.00013915 = 1.00009888
DM7840
DM7840_U.S. NATIONAL GRID SPATIAL ADDRESS: 18TYQ0937731731(NAD 83)
DM7840
DM7840 SUPERSEDED SURVEY CONTROL
DM7840
DM7840 NAD 83(2011)- 44 30 30.69556(N) 072 21 57.16354(W) AD(2010.00) c
DM7840 ELLIP H (12/??/11) 256.821 (m) GP(2010.00) c c
DM7840 NAD 83(CORS)- 44 30 30.69583(N) 072 21 57.16465(W) AD(2002.00) c
DM7840 ELLIP H (05/??/11) 256.827 (m) GP(2002.00) c c
DM7840
DM7840.Superseded values are not recommended for survey control.
DM7840
DM7840.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DM7840.See file dsdata.pdf to determine how the superseded data were derived.
DM7840
DM7840_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DM7840
DM7840 STATION DESCRIPTION
DM7840
DM7840'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DM7840'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DM7840'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DM7840'ACCESSIBLE AT THE WORLDWIDE WEB.
DM7840'https://geodesy.noaa.gov/CORS/data.shtml
DM7840'https://geodesy.noaa.gov/CORS
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