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 13:40:38 EST
DR8709 ***********************************************************************
DR8709 CORS - This is a GPS Continuously Operating Reference Station.
DR8709 DESIGNATION - IAC1 CENTERVILLE1 CORS ARP
DR8709 CORS_ID - IAC1
DR8709 PID - DR8709
DR8709 STATE/COUNTY- IA/APPANOOSE
DR8709 COUNTRY - US
DR8709 USGS QUAD - SEYMOUR EAST (2018)
DR8709
DR8709 *CURRENT SURVEY CONTROL
DR8709 ______________________________________________________________________
DR8709* NAD 83(2011) POSITION- 40 44 22.62282(N) 093 00 09.35643(W) ADJUSTED
DR8709* NAD 83(2011) ELLIP HT- 279.830 (meters) (07/??/24) ADJUSTED
DR8709* NAD 83(2011) EPOCH - 2010.00
DR8709 ______________________________________________________________________
DR8709 GEOID HEIGHT - -31.985 (meters) GEOID18
DR8709 NAD 83(2011) X - -253,510.812 (meters) COMP
DR8709 NAD 83(2011) Y - -4,833,079.719 (meters) COMP
DR8709 NAD 83(2011) Z - 4,140,739.729 (meters) COMP
DR8709
DR8709.Formal positional accuracy estimates are not available for this CORS
DR8709.because its coordinates were determined in part using modeled
DR8709.velocities. Approximate one-sigma accuracies for latitude, longitude,
DR8709.and ellipsoid height can be obtained from the short-term time series.
DR8709.Additional information regarding modeled velocities is available on
DR8709.the CORS Coordinates for MYCS2 web page:
DR8709.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DR8709
DR8709.The coordinates were established by GPS observations
DR8709.and adjusted by the National Geodetic Survey in July 2024.
DR8709
DR8709.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DR8709.been affixed to the stable North American Tectonic Plate.
DR8709
DR8709.The coordinates are valid at the epoch date displayed above
DR8709.which is a decimal equivalence of Year/Month/Day.
DR8709
DR8709.Due to the release of the International GNSS Service (IGS) 2014
DR8709.realization of the International Terrestrial Reference Frame of 2014
DR8709.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DR8709.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DR8709.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DR8709.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DR8709.currently published epoch of 2010.00.
DR8709
DR8709.Additional information on MYCS2 is available at
DR8709.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DR8709
DR8709.Significant digits in the geoid height do not necessarily reflect accuracy.
DR8709.GEOID18 height accuracy estimate available here.
DR8709
DR8709.The PID for the CORS L1 Phase Center is DS1990.
DR8709
DR8709.Click photographs - Photos may exist for this station.
DR8709
DR8709.The XYZ, and position/ellipsoidal ht. are equivalent.
DR8709
DR8709.The ellipsoidal height was determined by GPS observations
DR8709.and is referenced to NAD 83.
DR8709
DR8709. The following values were computed from the NAD 83(2011) position.
DR8709
DR8709; North East Units Scale Factor Converg.
DR8709;SPC IA S - 82,253.428 542,012.137 MT 0.99998057 +0 19 39.5
DR8709;SPC IA S - 269,859.79 1,778,251.49 sFT 0.99998057 +0 19 39.5
DR8709;UTM 15 - 4,509,852.787 499,780.561 MT 0.99960000 -0 00 06.1
DR8709
DR8709! - Elev Factor x Scale Factor = Combined Factor
DR8709!SPC IA S - 0.99995611 x 0.99998057 = 0.99993668
DR8709!UTM 15 - 0.99995611 x 0.99960000 = 0.99955612
DR8709
DR8709_U.S. NATIONAL GRID SPATIAL ADDRESS: 15TVF9978009852(NAD 83)
DR8709
DR8709 SUPERSEDED SURVEY CONTROL
DR8709
DR8709 ELLIP H (02/09/23) 279.851 (m) GP(2010.00) 0 0
DR8709 NAD 83(2011)- 40 44 22.62254(N) 093 00 09.35619(W) AD(2010.00) c
DR8709
DR8709.Superseded values are not recommended for survey control.
DR8709
DR8709.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DR8709.See file dsdata.pdf to determine how the superseded data were derived.
DR8709
DR8709_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DR8709_MAGNETIC: N = NO MAGNETIC MATERIAL
DR8709
DR8709 STATION DESCRIPTION
DR8709
DR8709'DESCRIBED BY NATIONAL GEODETIC SURVEY 2024
DR8709'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DR8709'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DR8709'ACCESSIBLE AT THE WORLDWIDE WEB.
DR8709'https://geodesy.noaa.gov/CORS/data.shtml
DR8709'https://geodesy.noaa.gov/CORS
1 National Geodetic Survey, Retrieval Date = FEBRUARY 19, 2025 13:40:38 EST
DS1991 ***********************************************************************
DS1991 CORS - This is a GPS Continuously Operating Reference Station.
DS1991 DESIGNATION - IAC1 CENTERVILLE1 CORS GRP
DS1991 CORS_ID - IAC1
DS1991 PID - DS1991
DS1991 STATE/COUNTY- IA/APPANOOSE
DS1991 COUNTRY - US
DS1991 USGS QUAD - SEYMOUR EAST (2018)
DS1991
DS1991 *CURRENT SURVEY CONTROL
DS1991 ______________________________________________________________________
DS1991* NAD 83(2011) POSITION- 40 44 22.62282(N) 093 00 09.35643(W) ADJUSTED
DS1991* NAD 83(2011) ELLIP HT- 279.795 (meters) (07/??/24) ADJUSTED
DS1991* NAD 83(2011) EPOCH - 2010.00
DS1991 ______________________________________________________________________
DS1991 GEOID HEIGHT - -31.985 (meters) GEOID18
DS1991 NAD 83(2011) X - -253,510.811 (meters) COMP
DS1991 NAD 83(2011) Y - -4,833,079.692 (meters) COMP
DS1991 NAD 83(2011) Z - 4,140,739.706 (meters) COMP
DS1991 LAPLACE CORR - -2.49 (seconds) DEFLEC18
DS1991
DS1991.Formal positional accuracy estimates are not available for this CORS
DS1991.because its coordinates were determined in part using modeled
DS1991.velocities. Approximate one-sigma accuracies for latitude, longitude,
DS1991.and ellipsoid height can be obtained from the short-term time series.
DS1991.Additional information regarding modeled velocities is available on
DS1991.the CORS Coordinates for MYCS2 web page:
DS1991.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DS1991
DS1991.The horizontal coordinates were established by GPS observations
DS1991.and adjusted by the National Geodetic Survey in July 2024.
DS1991
DS1991.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DS1991.been affixed to the stable North American Tectonic Plate.
DS1991
DS1991.The horizontal coordinates are valid at the epoch date displayed above
DS1991.which is a decimal equivalence of Year/Month/Day.
DS1991
DS1991.Due to the release of the International GNSS Service (IGS) 2014
DS1991.realization of the International Terrestrial Reference Frame of 2014
DS1991.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DS1991.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DS1991.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DS1991.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DS1991.currently published epoch of 2010.00.
DS1991
DS1991.Additional information on MYCS2 is available at
DS1991.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DS1991
DS1991.Significant digits in the geoid height do not necessarily reflect accuracy.
DS1991.GEOID18 height accuracy estimate available here.
DS1991
DS1991.Click photographs - Photos may exist for this station.
DS1991
DS1991.The XYZ, and position/ellipsoidal ht. are equivalent.
DS1991
DS1991.The Laplace correction was computed from DEFLEC18 derived deflections.
DS1991
DS1991.The ellipsoidal height was determined by GPS observations
DS1991.and is referenced to NAD 83.
DS1991
DS1991. The following values were computed from the NAD 83(2011) position.
DS1991
DS1991; North East Units Scale Factor Converg.
DS1991;SPC IA S - 82,253.428 542,012.137 MT 0.99998057 +0 19 39.5
DS1991;SPC IA S - 269,859.79 1,778,251.49 sFT 0.99998057 +0 19 39.5
DS1991;UTM 15 - 4,509,852.787 499,780.561 MT 0.99960000 -0 00 06.1
DS1991
DS1991! - Elev Factor x Scale Factor = Combined Factor
DS1991!SPC IA S - 0.99995611 x 0.99998057 = 0.99993668
DS1991!UTM 15 - 0.99995611 x 0.99960000 = 0.99955613
DS1991
DS1991_U.S. NATIONAL GRID SPATIAL ADDRESS: 15TVF9978009852(NAD 83)
DS1991
DS1991 SUPERSEDED SURVEY CONTROL
DS1991
DS1991.No superseded survey control is available for this station.
DS1991
DS1991_STAMPING: UNKNOWN
DS1991
DS1991 STATION DESCRIPTION
DS1991
DS1991'THIS MONUMENT IS ASSOCIATED WITH CORS SITE 'IAC1'
DS1991'LATEST INFORMATION INCLUDING POSITIONS AND VELOCITIES
DS1991'ARE AVAILABLE IN THE COORDINATE AND LOG FILES ACCESSIBLE
DS1991'BY ANONYMOUS FTP OR THE WORLDWIDE WEB.
DS1991' https://geodesy.noaa.gov/corsdata/coord/coord_14
DS1991' https://geodesy.noaa.gov/corsdata/station_log
DS1991' https://geodesy.noaa.gov/CORS
DS1991'RECOVERED AS DESCRIBED.
*** retrieval complete.
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