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 18, 2025 16:11:45 EST
DH7921 ***********************************************************************
DH7921 CORS - This is a GPS Continuously Operating Reference Station.
DH7921 DESIGNATION - SEILER STL1 COOP CORS ARP
DH7921 CORS_ID - SIHQ
DH7921 PID - DH7921
DH7921 STATE/COUNTY- MO/ST LOUIS
DH7921 COUNTRY - US
DH7921 USGS QUAD - WEBSTER GROVES (2017)
DH7921
DH7921 *CURRENT SURVEY CONTROL
DH7921 ______________________________________________________________________
DH7921* NAD 83(2011) POSITION- 38 36 03.57954(N) 090 21 06.06436(W) ADJUSTED
DH7921* NAD 83(2011) ELLIP HT- 124.750 (meters) (06/??/19) ADJUSTED
DH7921* NAD 83(2011) EPOCH - 2010.00
DH7921 ______________________________________________________________________
DH7921 GEOID HEIGHT - -31.063 (meters) GEOID18
DH7921 NAD 83(2011) X - -30,635.936 (meters) COMP
DH7921 NAD 83(2011) Y - -4,991,086.025 (meters) COMP
DH7921 NAD 83(2011) Z - 3,957,874.943 (meters) COMP
DH7921
DH7921.Formal positional accuracy estimates are not available for this CORS
DH7921.because its coordinates were determined in part using modeled
DH7921.velocities. Approximate one-sigma accuracies for latitude, longitude,
DH7921.and ellipsoid height can be obtained from the short-term time series.
DH7921.Additional information regarding modeled velocities is available on
DH7921.the CORS Coordinates for MYCS2 web page:
DH7921.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DH7921
DH7921.The coordinates were established by GPS observations
DH7921.and adjusted by the National Geodetic Survey in June 2019.
DH7921
DH7921.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DH7921.been affixed to the stable North American Tectonic Plate.
DH7921
DH7921.The coordinates are valid at the epoch date displayed above
DH7921.which is a decimal equivalence of Year/Month/Day.
DH7921
DH7921.Due to the release of the International GNSS Service (IGS) 2014
DH7921.realization of the International Terrestrial Reference Frame of 2014
DH7921.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DH7921.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DH7921.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DH7921.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DH7921.currently published epoch of 2010.00.
DH7921
DH7921.Additional information on MYCS2 is available at
DH7921.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DH7921
DH7921.Significant digits in the geoid height do not necessarily reflect accuracy.
DH7921.GEOID18 height accuracy estimate available here.
DH7921
DH7921.The PID for the CORS L1 Phase Center is DL3233.
DH7921
DH7921.Click photographs - Photos may exist for this station.
DH7921
DH7921.The XYZ, and position/ellipsoidal ht. are equivalent.
DH7921
DH7921.The ellipsoidal height was determined by GPS observations
DH7921.and is referenced to NAD 83.
DH7921
DH7921. The following values were computed from the NAD 83(2011) position.
DH7921
DH7921; North East Units Scale Factor Converg.
DH7921;SPC MO E - 307,149.888 262,919.023 MT 0.99993539 +0 05 33.1
DH7921;UTM 15 - 4,275,826.630 730,623.038 MT 1.00025502 +1 39 10.8
DH7921
DH7921! - Elev Factor x Scale Factor = Combined Factor
DH7921!SPC MO E - 0.99998043 x 0.99993539 = 0.99991582
DH7921!UTM 15 - 0.99998043 x 1.00025502 = 1.00023544
DH7921
DH7921_U.S. NATIONAL GRID SPATIAL ADDRESS: 15SYC3062375826(NAD 83)
DH7921
DH7921 SUPERSEDED SURVEY CONTROL
DH7921
DH7921 NAD 83(2011)- 38 36 03.57951(N) 090 21 06.06433(W) AD(2010.00) c
DH7921 ELLIP H (08/??/11) 124.743 (m) GP(2010.00) c c
DH7921 NAD 83(CORS)- 38 36 03.57949(N) 090 21 06.06445(W) AD(2002.00) c
DH7921 ELLIP H (01/??/06) 124.767 (m) GP(2002.00) c c
DH7921
DH7921.Superseded values are not recommended for survey control.
DH7921
DH7921.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DH7921.See file dsdata.pdf to determine how the superseded data were derived.
DH7921
DH7921_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DH7921
DH7921 STATION DESCRIPTION
DH7921
DH7921'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DH7921'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DH7921'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DH7921'ACCESSIBLE AT THE WORLDWIDE WEB.
DH7921'https://geodesy.noaa.gov/CORS/data.shtml
DH7921'https://geodesy.noaa.gov/CORS
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