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 07:01:03 EST
AF9497 ***********************************************************************
AF9497 CORS - This is a GPS Continuously Operating Reference Station.
AF9497 DESIGNATION - ST. LOUIS 2 CORS ARP
AF9497 CORS_ID - STL2
AF9497 PID - AF9497
AF9497 STATE/COUNTY- IL/ST CLAIR
AF9497 COUNTRY - US
AF9497 USGS QUAD - LEBANON (2018)
AF9497
AF9497 *CURRENT SURVEY CONTROL
AF9497 ______________________________________________________________________
AF9497* NAD 83(2011) POSITION- 38 36 40.70867(N) 089 45 32.02537(W) ADJUSTED
AF9497* NAD 83(2011) ELLIP HT- 166.657 (meters) (06/??/19) ADJUSTED
AF9497* NAD 83(2011) EPOCH - 2010.00
AF9497 ______________________________________________________________________
AF9497 GEOID HEIGHT - -30.687 (meters) GEOID18
AF9497 NAD 83(2011) X - 21,000.254 (meters) COMP
AF9497 NAD 83(2011) Y - -4,990,454.221 (meters) COMP
AF9497 NAD 83(2011) Z - 3,958,795.795 (meters) COMP
AF9497
AF9497.Formal positional accuracy estimates are not available for this CORS
AF9497.because its coordinates were determined in part using modeled
AF9497.velocities. Approximate one-sigma accuracies for latitude, longitude,
AF9497.and ellipsoid height can be obtained from the short-term time series.
AF9497.Additional information regarding modeled velocities is available on
AF9497.the CORS Coordinates for MYCS2 web page:
AF9497.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
AF9497
AF9497.The coordinates were established by GPS observations
AF9497.and adjusted by the National Geodetic Survey in June 2019.
AF9497
AF9497.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AF9497.been affixed to the stable North American Tectonic Plate.
AF9497
AF9497.The coordinates are valid at the epoch date displayed above
AF9497.which is a decimal equivalence of Year/Month/Day.
AF9497
AF9497.Due to the release of the International GNSS Service (IGS) 2014
AF9497.realization of the International Terrestrial Reference Frame of 2014
AF9497.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
AF9497.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
AF9497.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
AF9497.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
AF9497.currently published epoch of 2010.00.
AF9497
AF9497.Additional information on MYCS2 is available at
AF9497.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
AF9497
AF9497.Significant digits in the geoid height do not necessarily reflect accuracy.
AF9497.GEOID18 height accuracy estimate available here.
AF9497
AF9497.The PID for the CORS L1 Phase Center is DH9199.
AF9497
AF9497.Click photographs - Photos may exist for this station.
AF9497
AF9497.The XYZ, and position/ellipsoidal ht. are equivalent.
AF9497
AF9497.The ellipsoidal height was determined by GPS observations
AF9497.and is referenced to NAD 83.
AF9497
AF9497. The following values were computed from the NAD 83(2011) position.
AF9497
AF9497; North East Units Scale Factor Converg.
AF9497;SPC IL W - 215,901.291 735,514.138 MT 0.99995670 +0 15 16.1
AF9497;SPC IL W - 708,336.15 2,413,099.30 sFT 0.99995670 +0 15 16.1
AF9497;UTM 16 - 4,277,255.119 259,780.082 MT 1.00031068 -1 43 20.9
AF9497
AF9497! - Elev Factor x Scale Factor = Combined Factor
AF9497!SPC IL W - 0.99997385 x 0.99995670 = 0.99993055
AF9497!UTM 16 - 0.99997385 x 1.00031068 = 1.00028452
AF9497
AF9497_U.S. NATIONAL GRID SPATIAL ADDRESS: 16SBH5978077255(NAD 83)
AF9497
AF9497 SUPERSEDED SURVEY CONTROL
AF9497
AF9497 NAD 83(2011)- 38 36 40.70862(N) 089 45 32.02548(W) AD(2010.00) c
AF9497 ELLIP H (08/??/11) 166.670 (m) GP(2010.00) c c
AF9497 NAD 83(CORS)- 38 36 40.71097(N) 089 45 32.02271(W) AD(2002.00) c
AF9497 ELLIP H (03/??/02) 166.506 (m) GP(2002.00) c c
AF9497 NAD 83(CORS)- 38 36 40.70829(N) 089 45 32.02619(W) AD(1996.00) c
AF9497 ELLIP H (04/??/96) 166.685 (m) GP(1996.00) c c
AF9497
AF9497.Superseded values are not recommended for survey control.
AF9497
AF9497.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AF9497.See file dsdata.pdf to determine how the superseded data were derived.
AF9497
AF9497_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AF9497
AF9497 STATION DESCRIPTION
AF9497
AF9497'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
AF9497'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
AF9497'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
AF9497'ACCESSIBLE AT THE WORLDWIDE WEB.
AF9497'https://geodesy.noaa.gov/CORS/data.shtml
AF9497'https://geodesy.noaa.gov/CORS
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