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 20, 2025 05:02:35 EST
DI2234 ***********************************************************************
DI2234 CORS - This is a GPS Continuously Operating Reference Station.
DI2234 DESIGNATION - BLACKSBURGVA2006 CORS ARP
DI2234 CORS_ID - BLA1
DI2234 PID - DI2234
DI2234 STATE/COUNTY- VA/MONTGOMERY
DI2234 COUNTRY - US
DI2234 USGS QUAD - BLACKSBURG (2019)
DI2234
DI2234 *CURRENT SURVEY CONTROL
DI2234 ______________________________________________________________________
DI2234* NAD 83(2011) POSITION- 37 12 40.82686(N) 080 25 13.80810(W) ADJUSTED
DI2234* NAD 83(2011) ELLIP HT- 607.026 (meters) (06/??/19) ADJUSTED
DI2234* NAD 83(2011) EPOCH - 2010.00
DI2234 ______________________________________________________________________
DI2234 GEOID HEIGHT - -31.909 (meters) GEOID18
DI2234 NAD 83(2011) X - 846,445.724 (meters) COMP
DI2234 NAD 83(2011) Y - -5,015,401.235 (meters) COMP
DI2234 NAD 83(2011) Z - 3,836,465.802 (meters) COMP
DI2234
DI2234 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DI2234 Standards:
DI2234 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DI2234 Horiz Ellip SD_N SD_E SD_h (unitless)
DI2234 -------------------------------------------------------------------
DI2234 NETWORK 0.25 0.68 0.09 0.11 0.34 -0.12265700
DI2234 -------------------------------------------------------------------
DI2234
DI2234.The coordinates were established by GPS observations
DI2234.and adjusted by the National Geodetic Survey in June 2019.
DI2234
DI2234.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DI2234.been affixed to the stable North American Tectonic Plate.
DI2234
DI2234.The coordinates are valid at the epoch date displayed above
DI2234.which is a decimal equivalence of Year/Month/Day.
DI2234
DI2234.Due to the release of the International GNSS Service (IGS) 2014
DI2234.realization of the International Terrestrial Reference Frame of 2014
DI2234.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DI2234.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DI2234.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DI2234.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DI2234.currently published epoch of 2010.00.
DI2234
DI2234.Additional information on MYCS2 is available at
DI2234.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DI2234
DI2234.Significant digits in the geoid height do not necessarily reflect accuracy.
DI2234.GEOID18 height accuracy estimate available here.
DI2234
DI2234.The PID for the CORS L1 Phase Center is DR7722.
DI2234
DI2234.Click photographs - Photos may exist for this station.
DI2234
DI2234.The XYZ, and position/ellipsoidal ht. are equivalent.
DI2234
DI2234.The ellipsoidal height was determined by GPS observations
DI2234.and is referenced to NAD 83.
DI2234
DI2234. The following values were computed from the NAD 83(2011) position.
DI2234
DI2234; North East Units Scale Factor Converg.
DI2234;SPC VA S - 1,099,170.168 3,329,547.608 MT 0.99994910 -1 09 56.2
DI2234;SPC VA S - 3,606,194.13 10,923,690.78 sFT 0.99994910 -1 09 56.2
DI2234;UTM 17 - 4,118,474.767 551,418.613 MT 0.99963257 +0 21 01.7
DI2234
DI2234! - Elev Factor x Scale Factor = Combined Factor
DI2234!SPC VA S - 0.99990475 x 0.99994910 = 0.99985385
DI2234!UTM 17 - 0.99990475 x 0.99963257 = 0.99953735
DI2234
DI2234_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SNB5141818474(NAD 83)
DI2234
DI2234 SUPERSEDED SURVEY CONTROL
DI2234
DI2234 NAD 83(2011)- 37 12 40.82683(N) 080 25 13.80808(W) AD(2010.00) c
DI2234 ELLIP H (08/??/11) 607.023 (m) GP(2010.00) c c
DI2234 NAD 83(CORS)- 37 12 40.82687(N) 080 25 13.80840(W) AD(2002.00) c
DI2234 ELLIP H (11/??/06) 607.020 (m) GP(2002.00) c c
DI2234
DI2234.Superseded values are not recommended for survey control.
DI2234
DI2234.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DI2234.See file dsdata.pdf to determine how the superseded data were derived.
DI2234
DI2234_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DI2234
DI2234 STATION DESCRIPTION
DI2234
DI2234'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DI2234'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DI2234'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DI2234'ACCESSIBLE AT THE WORLDWIDE WEB.
DI2234'https://geodesy.noaa.gov/CORS/data.shtml
DI2234'https://geodesy.noaa.gov/CORS
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