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 02:03:40 EST
DL3640 ***********************************************************************
DL3640 CORS - This is a GPS Continuously Operating Reference Station.
DL3640 DESIGNATION - LOYOLA LOYK CORS ARP
DL3640 CORS_ID - LOYK
DL3640 PID - DL3640
DL3640 STATE/COUNTY- MD/HOWARD
DL3640 COUNTRY - US
DL3640 USGS QUAD - SAVAGE (2016)
DL3640
DL3640 *CURRENT SURVEY CONTROL
DL3640 ______________________________________________________________________
DL3640* NAD 83(2011) POSITION- 39 07 51.85828(N) 076 47 26.25931(W) ADJUSTED
DL3640* NAD 83(2011) ELLIP HT- 35.294 (meters) (06/??/19) ADJUSTED
DL3640* NAD 83(2011) EPOCH - 2010.00
DL3640 ______________________________________________________________________
DL3640 GEOID HEIGHT - -32.384 (meters) GEOID18
DL3640 NAD 83(2011) X - 1,132,081.306 (meters) COMP
DL3640 NAD 83(2011) Y - -4,823,104.340 (meters) COMP
DL3640 NAD 83(2011) Z - 4,003,637.185 (meters) COMP
DL3640
DL3640 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DL3640 Standards:
DL3640 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DL3640 Horiz Ellip SD_N SD_E SD_h (unitless)
DL3640 -------------------------------------------------------------------
DL3640 NETWORK 0.08 0.27 0.04 0.03 0.14 -0.02493500
DL3640 -------------------------------------------------------------------
DL3640
DL3640.The coordinates were established by GPS observations
DL3640.and adjusted by the National Geodetic Survey in June 2019.
DL3640
DL3640.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DL3640.been affixed to the stable North American Tectonic Plate.
DL3640
DL3640.The coordinates are valid at the epoch date displayed above
DL3640.which is a decimal equivalence of Year/Month/Day.
DL3640
DL3640.Due to the release of the International GNSS Service (IGS) 2014
DL3640.realization of the International Terrestrial Reference Frame of 2014
DL3640.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DL3640.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DL3640.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DL3640.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DL3640.currently published epoch of 2010.00.
DL3640
DL3640.Additional information on MYCS2 is available at
DL3640.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DL3640
DL3640.Significant digits in the geoid height do not necessarily reflect accuracy.
DL3640.GEOID18 height accuracy estimate available here.
DL3640
DL3640.The PID for the CORS L1 Phase Center is DQ6489.
DL3640
DL3640.Click photographs - Photos may exist for this station.
DL3640
DL3640.The XYZ, and position/ellipsoidal ht. are equivalent.
DL3640
DL3640.The ellipsoidal height was determined by GPS observations
DL3640.and is referenced to NAD 83.
DL3640
DL3640. The following values were computed from the NAD 83(2011) position.
DL3640
DL3640; North East Units Scale Factor Converg.
DL3640;SPC MD - 162,577.477 418,102.924 MT 0.99995975 +0 07 53.1
DL3640;SPC MD - 533,389.61 1,371,726.01 sFT 0.99995975 +0 07 53.1
DL3640;UTM 18 - 4,332,848.501 345,227.712 MT 0.99989496 -1 07 49.0
DL3640
DL3640! - Elev Factor x Scale Factor = Combined Factor
DL3640!SPC MD - 0.99999446 x 0.99995975 = 0.99995421
DL3640!UTM 18 - 0.99999446 x 0.99989496 = 0.99988942
DL3640
DL3640_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ4522732848(NAD 83)
DL3640
DL3640 SUPERSEDED SURVEY CONTROL
DL3640
DL3640 NAD 83(2011)- 39 07 51.85833(N) 076 47 26.25924(W) AD(2010.00) c
DL3640 ELLIP H (08/??/11) 35.294 (m) GP(2010.00) c c
DL3640 NAD 83(CORS)- 39 07 51.85882(N) 076 47 26.25984(W) AD(2002.00) c
DL3640 ELLIP H (07/??/09) 35.300 (m) GP(2002.00) c c
DL3640
DL3640.Superseded values are not recommended for survey control.
DL3640
DL3640.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DL3640.See file dsdata.pdf to determine how the superseded data were derived.
DL3640
DL3640_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DL3640
DL3640 STATION DESCRIPTION
DL3640
DL3640'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DL3640'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DL3640'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DL3640'ACCESSIBLE AT THE WORLDWIDE WEB.
DL3640'https://geodesy.noaa.gov/CORS/data.shtml
DL3640'https://geodesy.noaa.gov/CORS
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