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 15:26:05 EST
DL3079 ***********************************************************************
DL3079 HT_MOD - This is a Height Modernization Survey Station.
DL3079 CORS - This is a GPS Continuously Operating Reference Station.
DL3079 DESIGNATION - ISLAND POND CORS ARP
DL3079 CORS_ID - VTIP
DL3079 PID - DL3079
DL3079 STATE/COUNTY- VT/ESSEX
DL3079 COUNTRY - US
DL3079 USGS QUAD - ISLAND POND (2018)
DL3079
DL3079 *CURRENT SURVEY CONTROL
DL3079 ______________________________________________________________________
DL3079* NAD 83(2011) POSITION- 44 49 12.18008(N) 071 53 25.83935(W) ADJUSTED
DL3079* NAD 83(2011) ELLIP HT- 341.734 (meters) (06/??/20) ADJUSTED
DL3079* NAD 83(2011) EPOCH - 2010.00
DL3079* NAVD 88 ORTHO HEIGHT - 369.22 (meters) 1211.3 (feet) GPS OBS
DL3079 ______________________________________________________________________
DL3079 GEOID HEIGHT - -27.470 (meters) GEOID18
DL3079 NAD 83(2011) X - 1,408,683.963 (meters) COMP
DL3079 NAD 83(2011) Y - -4,307,458.109 (meters) COMP
DL3079 NAD 83(2011) Z - 4,473,426.497 (meters) COMP
DL3079
DL3079 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DL3079 Standards:
DL3079 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DL3079 Horiz Ellip SD_N SD_E SD_h (unitless)
DL3079 -------------------------------------------------------------------
DL3079 NETWORK 0.11 0.28 0.04 0.05 0.14 -0.12920800
DL3079 -------------------------------------------------------------------
DL3079
DL3079.The coordinates were established by GPS observations
DL3079.and adjusted by the National Geodetic Survey in June 2020.
DL3079
DL3079.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DL3079.been affixed to the stable North American Tectonic Plate.
DL3079
DL3079.The coordinates are valid at the epoch date displayed above
DL3079.which is a decimal equivalence of Year/Month/Day.
DL3079
DL3079.Due to the release of the International GNSS Service (IGS) 2014
DL3079.realization of the International Terrestrial Reference Frame of 2014
DL3079.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DL3079.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DL3079.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DL3079.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DL3079.currently published epoch of 2010.00.
DL3079
DL3079.Additional information on MYCS2 is available at
DL3079.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DL3079
DL3079.The orthometric height was determined by GPS observations and a
DL3079.high-resolution geoid model using precise GPS observation and
DL3079.processing techniques.
DL3079
DL3079.Significant digits in the geoid height do not necessarily reflect accuracy.
DL3079.GEOID18 height accuracy estimate available here.
DL3079
DL3079.The PID for the CORS L1 Phase Center is DL3080.
DL3079
DL3079.Click photographs - Photos may exist for this station.
DL3079
DL3079.The XYZ, and position/ellipsoidal ht. are equivalent.
DL3079
DL3079.The ellipsoidal height was determined by GPS observations
DL3079.and is referenced to NAD 83.
DL3079
DL3079. The following values were computed from the NAD 83(2011) position.
DL3079
DL3079; North East Units Scale Factor Converg.
DL3079;SPC VT - 257,942.106 548,204.755 MT 0.99999285 +0 25 46.7
DL3079;SPC VT - 846,265.06 1,798,568.43 sFT 0.99999285 +0 25 46.7
DL3079;UTM 19 - 4,967,025.609 271,470.815 MT 1.00024225 -2 02 18.1
DL3079
DL3079! - Elev Factor x Scale Factor = Combined Factor
DL3079!SPC VT - 0.99994642 x 0.99999285 = 0.99993927
DL3079!UTM 19 - 0.99994642 x 1.00024225 = 1.00018866
DL3079
DL3079_U.S. NATIONAL GRID SPATIAL ADDRESS: 19TBK7147067025(NAD 83)
DL3079
DL3079 SUPERSEDED SURVEY CONTROL
DL3079
DL3079 NAD 83(2011)- 44 49 12.18044(N) 071 53 25.83878(W) AD(2010.00) c
DL3079 ELLIP H (06/??/19) 341.734 (m) GP(2010.00) c c
DL3079 NAD 83(2011)- 44 49 12.18043(N) 071 53 25.83872(W) AD(2010.00) c
DL3079 ELLIP H (08/??/11) 341.732 (m) GP(2010.00) c c
DL3079 NAD 83(CORS)- 44 49 12.18077(N) 071 53 25.83991(W) AD(2002.00) c
DL3079 ELLIP H (05/??/09) 341.733 (m) GP(2002.00) c c
DL3079
DL3079.Superseded values are not recommended for survey control.
DL3079
DL3079.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DL3079.See file dsdata.pdf to determine how the superseded data were derived.
DL3079
DL3079_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DL3079
DL3079 STATION DESCRIPTION
DL3079
DL3079'DESCRIBED BY NATIONAL GEODETIC SURVEY 2020
DL3079'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DL3079'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DL3079'ACCESSIBLE AT THE WORLDWIDE WEB.
DL3079'https://geodesy.noaa.gov/CORS/data.shtml
DL3079'https://geodesy.noaa.gov/CORS
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