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 06:45:28 EST
DH4144 ***********************************************************************
DH4144 CORS - This is a GPS Continuously Operating Reference Station.
DH4144 DESIGNATION - STERLING CORS ARP
DH4144 CORS_ID - LWX1
DH4144 PID - DH4144
DH4144 STATE/COUNTY- VA/LOUDOUN
DH4144 COUNTRY - US
DH4144 USGS QUAD - HERNDON (2019)
DH4144
DH4144 *CURRENT SURVEY CONTROL
DH4144 ______________________________________________________________________
DH4144* NAD 83(2011) POSITION- 38 58 21.63398(N) 077 29 18.96280(W) ADJUSTED
DH4144* NAD 83(2011) ELLIP HT- 62.029 (meters) (06/??/19) ADJUSTED
DH4144* NAD 83(2011) EPOCH - 2010.00
DH4144 ______________________________________________________________________
DH4144 GEOID HEIGHT - -32.016 (meters) GEOID18
DH4144 NAD 83(2011) X - 1,075,648.569 (meters) COMP
DH4144 NAD 83(2011) Y - -4,847,372.997 (meters) COMP
DH4144 NAD 83(2011) Z - 3,989,998.211 (meters) COMP
DH4144
DH4144 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DH4144 Standards:
DH4144 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DH4144 Horiz Ellip SD_N SD_E SD_h (unitless)
DH4144 -------------------------------------------------------------------
DH4144 NETWORK 0.17 0.27 0.05 0.08 0.14 -0.25632000
DH4144 -------------------------------------------------------------------
DH4144
DH4144.The coordinates were established by GPS observations
DH4144.and adjusted by the National Geodetic Survey in June 2019.
DH4144
DH4144.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DH4144.been affixed to the stable North American Tectonic Plate.
DH4144
DH4144.The coordinates are valid at the epoch date displayed above
DH4144.which is a decimal equivalence of Year/Month/Day.
DH4144
DH4144.Due to the release of the International GNSS Service (IGS) 2014
DH4144.realization of the International Terrestrial Reference Frame of 2014
DH4144.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DH4144.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DH4144.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DH4144.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DH4144.currently published epoch of 2010.00.
DH4144
DH4144.Additional information on MYCS2 is available at
DH4144.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DH4144
DH4144.Significant digits in the geoid height do not necessarily reflect accuracy.
DH4144.GEOID18 height accuracy estimate available here.
DH4144
DH4144.The PID for the CORS L1 Phase Center is DN4600.
DH4144
DH4144.Click photographs - Photos may exist for this station.
DH4144
DH4144.The XYZ, and position/ellipsoidal ht. are equivalent.
DH4144
DH4144.The ellipsoidal height was determined by GPS observations
DH4144.and is referenced to NAD 83.
DH4144
DH4144. The following values were computed from the NAD 83(2011) position.
DH4144
DH4144; North East Units Scale Factor Converg.
DH4144;SPC VA N - 2,145,450.740 3,587,642.948 MT 0.99996755 +0 37 52.4
DH4144;SPC VA N - 7,038,866.30 11,770,458.57 sFT 0.99996755 +0 37 52.4
DH4144;UTM 18 - 4,316,690.193 284,410.531 MT 1.00017235 -1 33 56.9
DH4144
DH4144! - Elev Factor x Scale Factor = Combined Factor
DH4144!SPC VA N - 0.99999027 x 0.99996755 = 0.99995782
DH4144!UTM 18 - 0.99999027 x 1.00017235 = 1.00016262
DH4144
DH4144_U.S. NATIONAL GRID SPATIAL ADDRESS: 18STJ8441016690(NAD 83)
DH4144
DH4144 SUPERSEDED SURVEY CONTROL
DH4144
DH4144 ELLIP H (06/27/12) 62.032 (m) GP(2010.00) 0 0
DH4144 NAD 83(2011)- 38 58 21.63388(N) 077 29 18.96276(W) AD(2010.00) c
DH4144 NAD 83(2011)- 38 58 21.63399(N) 077 29 18.96267(W) AD(2010.00) c
DH4144 ELLIP H (08/??/11) 62.030 (m) GP(2010.00) c c
DH4144 NAD 83(CORS)- 38 58 21.63405(N) 077 29 18.96314(W) AD(2002.00) c
DH4144 ELLIP H (06/??/05) 62.046 (m) GP(2002.00) c c
DH4144
DH4144.Superseded values are not recommended for survey control.
DH4144
DH4144.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DH4144.See file dsdata.pdf to determine how the superseded data were derived.
DH4144
DH4144_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DH4144
DH4144 STATION DESCRIPTION
DH4144
DH4144'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DH4144'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DH4144'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DH4144'ACCESSIBLE AT THE WORLDWIDE WEB.
DH4144'https://geodesy.noaa.gov/CORS/data.shtml
DH4144'https://geodesy.noaa.gov/CORS
*** retrieval complete.
Elapsed Time = 00:00:04