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 17, 2025 19:39:57 EST
AF9498 ***********************************************************************
AF9498 HT_MOD - This is a Height Modernization Survey Station.
AF9498 CORS - This is a GPS Continuously Operating Reference Station.
AF9498 DESIGNATION - ST. LOUIS 3 CORS ARP
AF9498 CORS_ID - STL3
AF9498 PID - AF9498
AF9498 STATE/COUNTY- IL/ST CLAIR
AF9498 COUNTRY - US
AF9498 USGS QUAD - LEBANON (2018)
AF9498
AF9498 *CURRENT SURVEY CONTROL
AF9498 ______________________________________________________________________
AF9498* NAD 83(2011) POSITION- 38 36 39.89258(N) 089 45 31.25351(W) ADJUSTED
AF9498* NAD 83(2011) ELLIP HT- 158.309 (meters) (06/??/19) ADJUSTED
AF9498* NAD 83(2011) EPOCH - 2010.00
AF9498* NAVD 88 ORTHO HEIGHT - 188.98 (meters) 620.0 (feet) GPS OBS
AF9498 ______________________________________________________________________
AF9498 NAVD 88 orthometric height was determined with an earlier geoid model
AF9498 GEOID HEIGHT - -30.686 (meters) GEOID18
AF9498 NAD 83(2011) X - 21,018.967 (meters) COMP
AF9498 NAD 83(2011) Y - -4,990,463.323 (meters) COMP
AF9498 NAD 83(2011) Z - 3,958,770.922 (meters) COMP
AF9498
AF9498 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
AF9498 Standards:
AF9498 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
AF9498 Horiz Ellip SD_N SD_E SD_h (unitless)
AF9498 -------------------------------------------------------------------
AF9498 NETWORK 0.26 0.68 0.10 0.11 0.35 -0.01938500
AF9498 -------------------------------------------------------------------
AF9498
AF9498.The coordinates were established by GPS observations
AF9498.and adjusted by the National Geodetic Survey in June 2019.
AF9498
AF9498.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AF9498.been affixed to the stable North American Tectonic Plate.
AF9498
AF9498.The coordinates are valid at the epoch date displayed above
AF9498.which is a decimal equivalence of Year/Month/Day.
AF9498
AF9498.Due to the release of the International GNSS Service (IGS) 2014
AF9498.realization of the International Terrestrial Reference Frame of 2014
AF9498.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
AF9498.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
AF9498.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
AF9498.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
AF9498.currently published epoch of 2010.00.
AF9498
AF9498.Additional information on MYCS2 is available at
AF9498.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
AF9498
AF9498.The orthometric height was determined by GPS observations and a
AF9498.high-resolution geoid model using precise GPS observation and
AF9498.processing techniques.
AF9498
AF9498.Significant digits in the geoid height do not necessarily reflect accuracy.
AF9498.GEOID18 height accuracy estimate available here.
AF9498
AF9498.The PID for the CORS L1 Phase Center is AJ7868.
AF9498
AF9498.Click photographs - Photos may exist for this station.
AF9498
AF9498.The XYZ, and position/ellipsoidal ht. are equivalent.
AF9498
AF9498.The ellipsoidal height was determined by GPS observations
AF9498.and is referenced to NAD 83.
AF9498
AF9498. The following values were computed from the NAD 83(2011) position.
AF9498
AF9498; North East Units Scale Factor Converg.
AF9498;SPC IL W - 215,876.211 735,532.923 MT 0.99995672 +0 15 16.6
AF9498;SPC IL W - 708,253.87 2,413,160.93 sFT 0.99995672 +0 15 16.6
AF9498;UTM 16 - 4,277,229.397 259,797.997 MT 1.00031057 -1 43 20.4
AF9498
AF9498! - Elev Factor x Scale Factor = Combined Factor
AF9498!SPC IL W - 0.99997516 x 0.99995672 = 0.99993188
AF9498!UTM 16 - 0.99997516 x 1.00031057 = 1.00028572
AF9498
AF9498_U.S. NATIONAL GRID SPATIAL ADDRESS: 16SBH5979777229(NAD 83)
AF9498
AF9498 SUPERSEDED SURVEY CONTROL
AF9498
AF9498 ELLIP H (06/27/12) 158.312 (m) GP(2010.00) 0 0
AF9498 NAD 83(2011)- 38 36 39.89246(N) 089 45 31.25342(W) AD(2010.00) c
AF9498 NAD 83(2011)- 38 36 39.89255(N) 089 45 31.25347(W) AD(2010.00) c
AF9498 ELLIP H (08/??/11) 158.305 (m) GP(2010.00) c c
AF9498 ELLIP H (02/10/07) 158.310 (m) GP(2002.00)
AF9498 NAD 83(2007)- 38 36 39.89258(N) 089 45 31.25375(W) AD(2002.00) c
AF9498 NAD 83(CORS)- 38 36 39.89258(N) 089 45 31.25375(W) AD(2002.00) c
AF9498 ELLIP H (03/??/02) 158.310 (m) GP(2002.00) c c
AF9498 NAD 83(CORS)- 38 36 39.89256(N) 089 45 31.25426(W) AD(1997.00) c
AF9498 ELLIP H (06/??/96) 158.333 (m) GP(1997.00) c c
AF9498 NAD 83(CORS)- 38 36 39.89256(N) 089 45 31.25426(W) AD(1996.00) c
AF9498 ELLIP H (06/??/96) 158.333 (m) GP(1996.00) c c
AF9498
AF9498.Superseded values are not recommended for survey control.
AF9498
AF9498.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AF9498.See file dsdata.pdf to determine how the superseded data were derived.
AF9498
AF9498_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AF9498
AF9498 STATION DESCRIPTION
AF9498
AF9498'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
AF9498'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
AF9498'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
AF9498'ACCESSIBLE AT THE WORLDWIDE WEB.
AF9498'https://geodesy.noaa.gov/CORS/data.shtml
AF9498'https://geodesy.noaa.gov/CORS
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