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 05:36:52 EST
DH7960 ***********************************************************************
DH7960 CORS - This is a GPS Continuously Operating Reference Station.
DH7960 DESIGNATION - LOYOLA B COOP CORS ARP
DH7960 CORS_ID - LOYB
DH7960 PID - DH7960
DH7960 STATE/COUNTY- VA/FAIRFAX
DH7960 COUNTRY - US
DH7960 USGS QUAD - FORT BELVOIR (2019)
DH7960
DH7960 *CURRENT SURVEY CONTROL
DH7960 ______________________________________________________________________
DH7960* NAD 83(2011) POSITION- 38 43 42.02174(N) 077 11 02.29817(W) ADJUSTED
DH7960* NAD 83(2011) ELLIP HT- -1.549 (meters) (06/??/19) ADJUSTED
DH7960* NAD 83(2011) EPOCH - 2010.00
DH7960 ______________________________________________________________________
DH7960 GEOID HEIGHT - -32.215 (meters) GEOID18
DH7960 NAD 83(2011) X - 1,105,168.964 (meters) COMP
DH7960 NAD 83(2011) Y - -4,858,128.344 (meters) COMP
DH7960 NAD 83(2011) Z - 3,968,834.112 (meters) COMP
DH7960
DH7960 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DH7960 Standards:
DH7960 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DH7960 Horiz Ellip SD_N SD_E SD_h (unitless)
DH7960 -------------------------------------------------------------------
DH7960 NETWORK 0.14 0.33 0.05 0.06 0.17 -0.17033600
DH7960 -------------------------------------------------------------------
DH7960
DH7960.The coordinates were established by GPS observations
DH7960.and adjusted by the National Geodetic Survey in June 2019.
DH7960
DH7960.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DH7960.been affixed to the stable North American Tectonic Plate.
DH7960
DH7960.The coordinates are valid at the epoch date displayed above
DH7960.which is a decimal equivalence of Year/Month/Day.
DH7960
DH7960.Due to the release of the International GNSS Service (IGS) 2014
DH7960.realization of the International Terrestrial Reference Frame of 2014
DH7960.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DH7960.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DH7960.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DH7960.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DH7960.currently published epoch of 2010.00.
DH7960
DH7960.Additional information on MYCS2 is available at
DH7960.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DH7960
DH7960.Significant digits in the geoid height do not necessarily reflect accuracy.
DH7960.GEOID18 height accuracy estimate available here.
DH7960
DH7960.The PID for the CORS L1 Phase Center is DQ6452.
DH7960
DH7960.Click photographs - Photos may exist for this station.
DH7960
DH7960.The XYZ, and position/ellipsoidal ht. are equivalent.
DH7960
DH7960.The ellipsoidal height was determined by GPS observations
DH7960.and is referenced to NAD 83.
DH7960
DH7960. The following values were computed from the NAD 83(2011) position.
DH7960
DH7960; North East Units Scale Factor Converg.
DH7960;SPC VA N - 2,118,664.839 3,614,427.835 MT 0.99995025 +0 49 16.9
DH7960;SPC VA N - 6,950,986.23 11,858,335.32 sFT 0.99995025 +0 49 16.9
DH7960;UTM 18 - 4,288,895.082 310,154.949 MT 1.00004384 -1 22 00.3
DH7960
DH7960! - Elev Factor x Scale Factor = Combined Factor
DH7960!SPC VA N - 1.00000024 x 0.99995025 = 0.99995049
DH7960!UTM 18 - 1.00000024 x 1.00004384 = 1.00004408
DH7960
DH7960_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUH1015488895(NAD 83)
DH7960
DH7960 SUPERSEDED SURVEY CONTROL
DH7960
DH7960 ELLIP H (06/27/12) -1.574 (m) GP(2010.00) 0 0
DH7960 NAD 83(2011)- 38 43 42.02203(N) 077 11 02.29805(W) AD(2010.00) c
DH7960 NAD 83(2011)- 38 43 42.02176(N) 077 11 02.29814(W) AD(2010.00) c
DH7960 ELLIP H (08/??/11) -1.555 (m) GP(2010.00) c c
DH7960 NAD 83(CORS)- 38 43 42.02222(N) 077 11 02.29856(W) AD(2002.00) c
DH7960 ELLIP H (02/??/06) -1.544 (m) GP(2002.00) c c
DH7960
DH7960.Superseded values are not recommended for survey control.
DH7960
DH7960.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DH7960.See file dsdata.pdf to determine how the superseded data were derived.
DH7960
DH7960_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DH7960
DH7960 STATION DESCRIPTION
DH7960
DH7960'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DH7960'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DH7960'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DH7960'ACCESSIBLE AT THE WORLDWIDE WEB.
DH7960'https://geodesy.noaa.gov/CORS/data.shtml
DH7960'https://geodesy.noaa.gov/CORS
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