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 01:14:32 EST
DP1245 ***********************************************************************
DP1245 CORS - This is a GPS Continuously Operating Reference Station.
DP1245 DESIGNATION - IADT POCHAHONTAS CORS ARP
DP1245 CORS_ID - IAPS
DP1245 PID - DP1245
DP1245 STATE/COUNTY- IA/POCAHONTAS
DP1245 COUNTRY - US
DP1245 USGS QUAD - POCAHONTAS (2018)
DP1245
DP1245 *CURRENT SURVEY CONTROL
DP1245 ______________________________________________________________________
DP1245* NAD 83(2011) POSITION- 42 44 16.91844(N) 094 40 45.28486(W) ADJUSTED
DP1245* NAD 83(2011) ELLIP HT- 353.420 (meters) (07/??/20) ADJUSTED
DP1245* NAD 83(2011) EPOCH - 2010.00
DP1245 ______________________________________________________________________
DP1245 GEOID HEIGHT - -28.911 (meters) GEOID18
DP1245 NAD 83(2011) X - -382,762.544 (meters) COMP
DP1245 NAD 83(2011) Y - -4,676,373.191 (meters) COMP
DP1245 NAD 83(2011) Z - 4,306,412.472 (meters) COMP
DP1245
DP1245 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DP1245 Standards:
DP1245 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DP1245 Horiz Ellip SD_N SD_E SD_h (unitless)
DP1245 -------------------------------------------------------------------
DP1245 NETWORK 0.16 0.20 0.03 0.08 0.10 0.08811700
DP1245 -------------------------------------------------------------------
DP1245
DP1245.The coordinates were established by GPS observations
DP1245.and adjusted by the National Geodetic Survey in July 2020.
DP1245
DP1245.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DP1245.been affixed to the stable North American Tectonic Plate.
DP1245
DP1245.The coordinates are valid at the epoch date displayed above
DP1245.which is a decimal equivalence of Year/Month/Day.
DP1245
DP1245.Due to the release of the International GNSS Service (IGS) 2014
DP1245.realization of the International Terrestrial Reference Frame of 2014
DP1245.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DP1245.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DP1245.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DP1245.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DP1245.currently published epoch of 2010.00.
DP1245
DP1245.Additional information on MYCS2 is available at
DP1245.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DP1245
DP1245.Significant digits in the geoid height do not necessarily reflect accuracy.
DP1245.GEOID18 height accuracy estimate available here.
DP1245
DP1245.The PID for the CORS L1 Phase Center is DR1543.
DP1245
DP1245.Click photographs - Photos may exist for this station.
DP1245
DP1245.The XYZ, and position/ellipsoidal ht. are equivalent.
DP1245
DP1245.The ellipsoidal height was determined by GPS observations
DP1245.and is referenced to NAD 83.
DP1245
DP1245. The following values were computed from the NAD 83(2011) position.
DP1245
DP1245; North East Units Scale Factor Converg.
DP1245;SPC IA N - 1,138,190.087 1,403,443.998 MT 0.99994612 -0 47 57.2
DP1245;SPC IA N - 3,734,211.98 4,604,465.85 sFT 0.99994612 -0 47 57.2
DP1245;UTM 15 - 4,733,091.653 362,545.818 MT 0.99983245 -1 08 23.3
DP1245
DP1245! - Elev Factor x Scale Factor = Combined Factor
DP1245!SPC IA N - 0.99994458 x 0.99994612 = 0.99989070
DP1245!UTM 15 - 0.99994458 x 0.99983245 = 0.99977704
DP1245
DP1245_U.S. NATIONAL GRID SPATIAL ADDRESS: 15TUH6254533091(NAD 83)
DP1245
DP1245 SUPERSEDED SURVEY CONTROL
DP1245
DP1245 NAD 83(2011)- 42 44 16.91830(N) 094 40 45.28485(W) AD(2010.00) c
DP1245 ELLIP H (06/??/19) 353.438 (m) GP(2010.00) c c
DP1245 NAD 83(2011)- 42 44 16.91863(N) 094 40 45.28490(W) AD(2010.00) c
DP1245 ELLIP H (01/??/14) 353.416 (m) GP(2010.00) c c
DP1245
DP1245.Superseded values are not recommended for survey control.
DP1245
DP1245.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DP1245.See file dsdata.pdf to determine how the superseded data were derived.
DP1245
DP1245_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DP1245
DP1245 STATION DESCRIPTION
DP1245
DP1245'DESCRIBED BY NATIONAL GEODETIC SURVEY 2020
DP1245'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DP1245'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DP1245'ACCESSIBLE AT THE WORLDWIDE WEB.
DP1245'https://geodesy.noaa.gov/CORS/data.shtml
DP1245'https://geodesy.noaa.gov/CORS
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