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 10:14:26 EST
DI2149 ***********************************************************************
DI2149 CORS - This is a GPS Continuously Operating Reference Station.
DI2149 DESIGNATION - ST. THOMAS CORS ARP
DI2149 CORS_ID - VITH
DI2149 PID - DI2149
DI2149 STATE/COUNTY- VQ/ST THOMAS
DI2149 COUNTRY - US
DI2149 USGS QUAD - CHARLOTTE AMALIE (2013)
DI2149
DI2149 *CURRENT SURVEY CONTROL
DI2149 ______________________________________________________________________
DI2149* NAD 83(2011) POSITION- 18 20 35.97818(N) 064 58 09.17133(W) ADJUSTED
DI2149* NAD 83(2011) ELLIP HT- 6.378 (meters) (06/??/19) ADJUSTED
DI2149* NAD 83(2011) EPOCH - 2010.00
DI2149 ______________________________________________________________________
DI2149 GEOID HEIGHT - -42.187 (meters) GEOID18
DI2149 NAD 83(2011) X - 2,562,351.850 (meters) COMP
DI2149 NAD 83(2011) Y - -5,487,281.657 (meters) COMP
DI2149 NAD 83(2011) Z - 1,994,491.489 (meters) COMP
DI2149
DI2149 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DI2149 Standards:
DI2149 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DI2149 Horiz Ellip SD_N SD_E SD_h (unitless)
DI2149 -------------------------------------------------------------------
DI2149 NETWORK 0.16 0.54 0.06 0.07 0.28 0.03243700
DI2149 -------------------------------------------------------------------
DI2149
DI2149.The coordinates were established by GPS observations
DI2149.and adjusted by the National Geodetic Survey in June 2019.
DI2149
DI2149.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DI2149.been affixed to the stable North American Tectonic Plate.
DI2149
DI2149.The coordinates are valid at the epoch date displayed above
DI2149.which is a decimal equivalence of Year/Month/Day.
DI2149
DI2149.Due to the release of the International GNSS Service (IGS) 2014
DI2149.realization of the International Terrestrial Reference Frame of 2014
DI2149.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DI2149.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DI2149.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DI2149.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DI2149.currently published epoch of 2010.00.
DI2149
DI2149.Additional information on MYCS2 is available at
DI2149.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DI2149
DI2149.Significant digits in the geoid height do not necessarily reflect accuracy.
DI2149.GEOID18 height accuracy estimate available here.
DI2149
DI2149.The PID for the CORS L1 Phase Center is DI2150.
DI2149
DI2149.Click photographs - Photos may exist for this station.
DI2149
DI2149.The XYZ, and position/ellipsoidal ht. are equivalent.
DI2149
DI2149.The ellipsoidal height was determined by GPS observations
DI2149.and is referenced to NAD 83.
DI2149
DI2149. The following values were computed from the NAD 83(2011) position.
DI2149
DI2149; North East Units Scale Factor Converg.
DI2149;SPC PRVI - 257,065.529 354,752.367 MT 0.99999578 +0 27 29.2
DI2149;UTM 20 - 2,029,296.329 291,907.885 MT 1.00013536 -0 37 11.8
DI2149
DI2149! - Elev Factor x Scale Factor = Combined Factor
DI2149!SPC PRVI - 0.99999900 x 0.99999578 = 0.99999478
DI2149!UTM 20 - 0.99999900 x 1.00013536 = 1.00013436
DI2149
DI2149_U.S. NATIONAL GRID SPATIAL ADDRESS: 20QKF9190729296(NAD 83)
DI2149
DI2149 SUPERSEDED SURVEY CONTROL
DI2149
DI2149 NAD 83(2011)- 18 20 35.97813(N) 064 58 09.17131(W) AD(2010.00) c
DI2149 ELLIP H (08/??/11) 6.380 (m) GP(2010.00) c c
DI2149 NAD 83(CORS)- 18 20 35.97708(N) 064 58 09.17651(W) AD(2002.00) c
DI2149 ELLIP H (10/??/06) 6.366 (m) GP(2002.00) c c
DI2149
DI2149.Superseded values are not recommended for survey control.
DI2149
DI2149.NGS no longer adjusts projects to the PR datum.
DI2149.See file dsdata.pdf to determine how the superseded data were derived.
DI2149
DI2149_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DI2149
DI2149 STATION DESCRIPTION
DI2149
DI2149'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DI2149'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DI2149'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DI2149'ACCESSIBLE AT THE WORLDWIDE WEB.
DI2149'https://geodesy.noaa.gov/CORS/data.shtml
DI2149'https://geodesy.noaa.gov/CORS
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