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 00:43:26 EST
DH8807 ***********************************************************************
DH8807 CORS - This is a GPS Continuously Operating Reference Station.
DH8807 DESIGNATION - LOYOLA C COOP CORS ARP
DH8807 CORS_ID - LOYC
DH8807 PID - DH8807
DH8807 STATE/COUNTY- VA/FREDERICK
DH8807 COUNTRY - US
DH8807 USGS QUAD - STEPHENS CITY (2019)
DH8807
DH8807 *CURRENT SURVEY CONTROL
DH8807 ______________________________________________________________________
DH8807* NAD 83(2011) POSITION- 39 07 12.54603(N) 078 12 02.60900(W) ADJUSTED
DH8807* NAD 83(2011) ELLIP HT- 203.091 (meters) (06/??/19) ADJUSTED
DH8807* NAD 83(2011) EPOCH - 2010.00
DH8807 ______________________________________________________________________
DH8807 GEOID HEIGHT - -33.675 (meters) GEOID18
DH8807 NAD 83(2011) X - 1,013,232.871 (meters) COMP
DH8807 NAD 83(2011) Y - -4,850,378.684 (meters) COMP
DH8807 NAD 83(2011) Z - 4,002,802.574 (meters) COMP
DH8807
DH8807 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DH8807 Standards:
DH8807 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DH8807 Horiz Ellip SD_N SD_E SD_h (unitless)
DH8807 -------------------------------------------------------------------
DH8807 NETWORK 0.11 0.28 0.05 0.04 0.14 0.02750300
DH8807 -------------------------------------------------------------------
DH8807
DH8807.The coordinates were established by GPS observations
DH8807.and adjusted by the National Geodetic Survey in June 2019.
DH8807
DH8807.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DH8807.been affixed to the stable North American Tectonic Plate.
DH8807
DH8807.The coordinates are valid at the epoch date displayed above
DH8807.which is a decimal equivalence of Year/Month/Day.
DH8807
DH8807.Due to the release of the International GNSS Service (IGS) 2014
DH8807.realization of the International Terrestrial Reference Frame of 2014
DH8807.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DH8807.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DH8807.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DH8807.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DH8807.currently published epoch of 2010.00.
DH8807
DH8807.Additional information on MYCS2 is available at
DH8807.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DH8807
DH8807.Significant digits in the geoid height do not necessarily reflect accuracy.
DH8807.GEOID18 height accuracy estimate available here.
DH8807
DH8807.The PID for the CORS L1 Phase Center is DQ5194.
DH8807
DH8807.Click photographs - Photos may exist for this station.
DH8807
DH8807.The XYZ, and position/ellipsoidal ht. are equivalent.
DH8807
DH8807.The ellipsoidal height was determined by GPS observations
DH8807.and is referenced to NAD 83.
DH8807
DH8807. The following values were computed from the NAD 83(2011) position.
DH8807
DH8807; North East Units Scale Factor Converg.
DH8807;SPC VA N - 2,161,381.955 3,525,880.850 MT 0.99998680 +0 11 12.4
DH8807;SPC VA N - 7,091,133.96 11,567,827.42 sFT 0.99998680 +0 11 12.4
DH8807;UTM 17 - 4,333,841.729 742,003.494 MT 1.00032119 +1 46 01.4
DH8807
DH8807! - Elev Factor x Scale Factor = Combined Factor
DH8807!SPC VA N - 0.99996814 x 0.99998680 = 0.99995494
DH8807!UTM 17 - 0.99996814 x 1.00032119 = 1.00028932
DH8807
DH8807_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SQD4200333841(NAD 83)
DH8807
DH8807 SUPERSEDED SURVEY CONTROL
DH8807
DH8807 ELLIP H (06/27/12) 203.102 (m) GP(2010.00) 0 0
DH8807 NAD 83(2011)- 39 07 12.54604(N) 078 12 02.60911(W) AD(2010.00) c
DH8807 NAD 83(2011)- 39 07 12.54600(N) 078 12 02.60896(W) AD(2010.00) c
DH8807 ELLIP H (08/??/11) 203.089 (m) GP(2010.00) c c
DH8807 NAD 83(CORS)- 39 07 12.54614(N) 078 12 02.60921(W) AD(2002.00) c
DH8807 ELLIP H (03/??/06) 203.102 (m) GP(2002.00) c c
DH8807
DH8807.Superseded values are not recommended for survey control.
DH8807
DH8807.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DH8807.See file dsdata.pdf to determine how the superseded data were derived.
DH8807
DH8807_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DH8807
DH8807 STATION DESCRIPTION
DH8807
DH8807'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DH8807'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DH8807'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DH8807'ACCESSIBLE AT THE WORLDWIDE WEB.
DH8807'https://geodesy.noaa.gov/CORS/data.shtml
DH8807'https://geodesy.noaa.gov/CORS
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