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 05:10:54 EST
DH3635 ***********************************************************************
DH3635 CORS - This is a GPS Continuously Operating Reference Station.
DH3635 DESIGNATION - LOYOLA 5 COOP CORS ARP
DH3635 CORS_ID - LOY5
DH3635 PID - DH3635
DH3635 STATE/COUNTY- VA/FAIRFAX
DH3635 COUNTRY - US
DH3635 USGS QUAD - HERNDON (2019)
DH3635
DH3635 *CURRENT SURVEY CONTROL
DH3635 ______________________________________________________________________
DH3635* NAD 83(2011) POSITION- 38 53 11.89549(N) 077 26 10.53552(W) ADJUSTED
DH3635* NAD 83(2011) ELLIP HT- 67.397 (meters) (06/??/19) ADJUSTED
DH3635* NAD 83(2011) EPOCH - 2010.00
DH3635 ______________________________________________________________________
DH3635 GEOID HEIGHT - -31.873 (meters) GEOID18
DH3635 NAD 83(2011) X - 1,081,382.770 (meters) COMP
DH3635 NAD 83(2011) Y - -4,852,250.593 (meters) COMP
DH3635 NAD 83(2011) Z - 3,982,571.235 (meters) COMP
DH3635
DH3635.Formal positional accuracy estimates are not available for this CORS
DH3635.because its coordinates were determined in part using modeled
DH3635.velocities. Approximate one-sigma accuracies for latitude, longitude,
DH3635.and ellipsoid height can be obtained from the short-term time series.
DH3635.Additional information regarding modeled velocities is available on
DH3635.the CORS Coordinates for MYCS2 web page:
DH3635.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DH3635
DH3635.The coordinates were established by GPS observations
DH3635.and adjusted by the National Geodetic Survey in June 2019.
DH3635
DH3635.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DH3635.been affixed to the stable North American Tectonic Plate.
DH3635
DH3635.The coordinates are valid at the epoch date displayed above
DH3635.which is a decimal equivalence of Year/Month/Day.
DH3635
DH3635.Due to the release of the International GNSS Service (IGS) 2014
DH3635.realization of the International Terrestrial Reference Frame of 2014
DH3635.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DH3635.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DH3635.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DH3635.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DH3635.currently published epoch of 2010.00.
DH3635
DH3635.Additional information on MYCS2 is available at
DH3635.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DH3635
DH3635.Significant digits in the geoid height do not necessarily reflect accuracy.
DH3635.GEOID18 height accuracy estimate available here.
DH3635
DH3635.The PID for the CORS L1 Phase Center is DH3636.
DH3635
DH3635.Click photographs - Photos may exist for this station.
DH3635
DH3635.The XYZ, and position/ellipsoidal ht. are equivalent.
DH3635
DH3635.The ellipsoidal height was determined by GPS observations
DH3635.and is referenced to NAD 83.
DH3635
DH3635. The following values were computed from the NAD 83(2011) position.
DH3635
DH3635; North East Units Scale Factor Converg.
DH3635;SPC VA N - 2,135,951.507 3,592,289.028 MT 0.99995939 +0 39 50.0
DH3635;SPC VA N - 7,007,700.90 11,785,701.59 sFT 0.99995939 +0 39 50.0
DH3635;UTM 18 - 4,307,018.036 288,690.144 MT 1.00014986 -1 31 48.0
DH3635
DH3635! - Elev Factor x Scale Factor = Combined Factor
DH3635!SPC VA N - 0.99998943 x 0.99995939 = 0.99994882
DH3635!UTM 18 - 0.99998943 x 1.00014986 = 1.00013928
DH3635
DH3635_U.S. NATIONAL GRID SPATIAL ADDRESS: 18STJ8869007018(NAD 83)
DH3635
DH3635 SUPERSEDED SURVEY CONTROL
DH3635
DH3635 NAD 83(2011)- 38 53 11.89548(N) 077 26 10.53545(W) AD(2010.00) c
DH3635 ELLIP H (08/??/11) 67.395 (m) GP(2010.00) c c
DH3635 NAD 83(CORS)- 38 53 11.89557(N) 077 26 10.53573(W) AD(2002.00) c
DH3635 ELLIP H (06/??/05) 67.408 (m) GP(2002.00) c c
DH3635
DH3635.Superseded values are not recommended for survey control.
DH3635
DH3635.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DH3635.See file dsdata.pdf to determine how the superseded data were derived.
DH3635
DH3635_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DH3635
DH3635 STATION DESCRIPTION
DH3635
DH3635'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DH3635'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DH3635'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DH3635'ACCESSIBLE AT THE WORLDWIDE WEB.
DH3635'https://geodesy.noaa.gov/CORS/data.shtml
DH3635'https://geodesy.noaa.gov/CORS
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