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 18, 2025 00:25:42 EST
DM7880 ***********************************************************************
DM7880 CORS - This is a GPS Continuously Operating Reference Station.
DM7880 DESIGNATION - VDOT SURVEY ONE CORS ARP
DM7880 CORS_ID - VDOT
DM7880 PID - DM7880
DM7880 STATE/COUNTY- VA/C OF RICHMOND
DM7880 COUNTRY - US
DM7880 USGS QUAD - RICHMOND (2019)
DM7880
DM7880 *CURRENT SURVEY CONTROL
DM7880 ______________________________________________________________________
DM7880* NAD 83(2011) POSITION- 37 32 16.18032(N) 077 25 46.98572(W) ADJUSTED
DM7880* NAD 83(2011) ELLIP HT- 56.863 (meters) (06/??/19) ADJUSTED
DM7880* NAD 83(2011) EPOCH - 2010.00
DM7880 ______________________________________________________________________
DM7880 GEOID HEIGHT - -33.076 (meters) GEOID18
DM7880 NAD 83(2011) X - 1,102,090.573 (meters) COMP
DM7880 NAD 83(2011) Y - -4,942,510.267 (meters) COMP
DM7880 NAD 83(2011) Z - 3,864,928.728 (meters) COMP
DM7880
DM7880 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DM7880 Standards:
DM7880 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DM7880 Horiz Ellip SD_N SD_E SD_h (unitless)
DM7880 -------------------------------------------------------------------
DM7880 NETWORK 0.08 0.19 0.03 0.04 0.10 -0.27097800
DM7880 -------------------------------------------------------------------
DM7880
DM7880.The coordinates were established by GPS observations
DM7880.and adjusted by the National Geodetic Survey in June 2019.
DM7880
DM7880.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DM7880.been affixed to the stable North American Tectonic Plate.
DM7880
DM7880.The coordinates are valid at the epoch date displayed above
DM7880.which is a decimal equivalence of Year/Month/Day.
DM7880
DM7880.Due to the release of the International GNSS Service (IGS) 2014
DM7880.realization of the International Terrestrial Reference Frame of 2014
DM7880.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DM7880.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DM7880.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DM7880.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DM7880.currently published epoch of 2010.00.
DM7880
DM7880.Additional information on MYCS2 is available at
DM7880.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DM7880
DM7880.Significant digits in the geoid height do not necessarily reflect accuracy.
DM7880.GEOID18 height accuracy estimate available here.
DM7880
DM7880.The PID for the CORS L1 Phase Center is DM7881.
DM7880
DM7880.Click photographs - Photos may exist for this station.
DM7880
DM7880.The XYZ, and position/ellipsoidal ht. are equivalent.
DM7880
DM7880.The ellipsoidal height was determined by GPS observations
DM7880.and is referenced to NAD 83.
DM7880
DM7880. The following values were computed from the NAD 83(2011) position.
DM7880
DM7880; North East Units Scale Factor Converg.
DM7880;SPC VA S - 1,134,205.616 3,594,585.601 MT 0.99994981 +0 38 58.5
DM7880;SPC VA S - 3,721,139.59 11,793,236.26 sFT 0.99994981 +0 38 58.5
DM7880;UTM 18 - 4,157,312.331 285,328.683 MT 1.00016767 -1 28 51.4
DM7880
DM7880! - Elev Factor x Scale Factor = Combined Factor
DM7880!SPC VA S - 0.99999108 x 0.99994981 = 0.99994089
DM7880!UTM 18 - 0.99999108 x 1.00016767 = 1.00015875
DM7880
DM7880_U.S. NATIONAL GRID SPATIAL ADDRESS: 18STG8532857312(NAD 83)
DM7880
DM7880 SUPERSEDED SURVEY CONTROL
DM7880
DM7880 NAD 83(2011)- 37 32 16.18036(N) 077 25 46.98564(W) AD(2010.00) c
DM7880 ELLIP H (12/??/11) 56.857 (m) GP(2010.00) c c
DM7880 NAD 83(CORS)- 37 32 16.18060(N) 077 25 46.98611(W) AD(2002.00) c
DM7880 ELLIP H (06/??/11) 56.866 (m) GP(2002.00) c c
DM7880
DM7880.Superseded values are not recommended for survey control.
DM7880
DM7880.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DM7880.See file dsdata.pdf to determine how the superseded data were derived.
DM7880
DM7880_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DM7880
DM7880 STATION DESCRIPTION
DM7880
DM7880'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DM7880'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DM7880'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DM7880'ACCESSIBLE AT THE WORLDWIDE WEB.
DM7880'https://geodesy.noaa.gov/CORS/data.shtml
DM7880'https://geodesy.noaa.gov/CORS
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