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 12:28:22 EST
DP1237 ***********************************************************************
DP1237 CORS - This is a GPS Continuously Operating Reference Station.
DP1237 DESIGNATION - IADT LEON CORS ARP
DP1237 CORS_ID - IALN
DP1237 PID - DP1237
DP1237 STATE/COUNTY- IA/DECATUR
DP1237 COUNTRY - US
DP1237 USGS QUAD - DAVIS CITY (2018)
DP1237
DP1237 *CURRENT SURVEY CONTROL
DP1237 ______________________________________________________________________
DP1237* NAD 83(2011) POSITION- 40 43 44.48397(N) 093 45 42.86022(W) ADJUSTED
DP1237* NAD 83(2011) ELLIP HT- 318.545 (meters) (05/??/21) ADJUSTED
DP1237* NAD 83(2011) EPOCH - 2010.00
DP1237 ______________________________________________________________________
DP1237 GEOID HEIGHT - -31.469 (meters) GEOID18
DP1237 NAD 83(2011) X - -317,588.880 (meters) COMP
DP1237 NAD 83(2011) Y - -4,830,091.149 (meters) COMP
DP1237 NAD 83(2011) Z - 4,139,873.492 (meters) COMP
DP1237
DP1237 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DP1237 Standards:
DP1237 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DP1237 Horiz Ellip SD_N SD_E SD_h (unitless)
DP1237 -------------------------------------------------------------------
DP1237 NETWORK 0.12 0.29 0.04 0.06 0.15 0.03277300
DP1237 -------------------------------------------------------------------
DP1237
DP1237.The coordinates were established by GPS observations
DP1237.and adjusted by the National Geodetic Survey in May 2021.
DP1237
DP1237.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DP1237.been affixed to the stable North American Tectonic Plate.
DP1237
DP1237.The coordinates are valid at the epoch date displayed above
DP1237.which is a decimal equivalence of Year/Month/Day.
DP1237
DP1237.Due to the release of the International GNSS Service (IGS) 2014
DP1237.realization of the International Terrestrial Reference Frame of 2014
DP1237.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DP1237.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DP1237.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DP1237.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DP1237.currently published epoch of 2010.00.
DP1237
DP1237.Additional information on MYCS2 is available at
DP1237.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DP1237
DP1237.Significant digits in the geoid height do not necessarily reflect accuracy.
DP1237.GEOID18 height accuracy estimate available here.
DP1237
DP1237.The PID for the CORS L1 Phase Center is DR1539.
DP1237
DP1237.Click photographs - Photos may exist for this station.
DP1237
DP1237.The XYZ, and position/ellipsoidal ht. are equivalent.
DP1237
DP1237.The ellipsoidal height was determined by GPS observations
DP1237.and is referenced to NAD 83.
DP1237
DP1237. The following values were computed from the NAD 83(2011) position.
DP1237
DP1237; North East Units Scale Factor Converg.
DP1237;SPC IA S - 80,990.174 477,874.954 MT 0.99998207 -0 10 21.1
DP1237;SPC IA S - 265,715.26 1,567,828.08 sFT 0.99998207 -0 10 21.1
DP1237;UTM 15 - 4,508,955.921 435,660.576 MT 0.99965095 -0 29 49.7
DP1237
DP1237! - Elev Factor x Scale Factor = Combined Factor
DP1237!SPC IA S - 0.99995003 x 0.99998207 = 0.99993210
DP1237!UTM 15 - 0.99995003 x 0.99965095 = 0.99960100
DP1237
DP1237_U.S. NATIONAL GRID SPATIAL ADDRESS: 15TVF3566008955(NAD 83)
DP1237
DP1237 SUPERSEDED SURVEY CONTROL
DP1237
DP1237 ELLIP H (05/??/20) 318.565 (m) GP(2010.00) c c
DP1237 NAD 83(2011)- 40 43 44.48375(N) 093 45 42.86004(W) AD(2010.00) c
DP1237 ELLIP H (06/??/19) 318.585 (m) GP(2010.00) c c
DP1237 NAD 83(2011)- 40 43 44.48410(N) 093 45 42.85995(W) AD(2010.00) c
DP1237 ELLIP H (01/??/14) 318.565 (m) GP(2010.00) c c
DP1237
DP1237.Superseded values are not recommended for survey control.
DP1237
DP1237.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DP1237.See file dsdata.pdf to determine how the superseded data were derived.
DP1237
DP1237_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DP1237
DP1237 STATION DESCRIPTION
DP1237
DP1237'DESCRIBED BY NATIONAL GEODETIC SURVEY 2021
DP1237'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DP1237'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DP1237'ACCESSIBLE AT THE WORLDWIDE WEB.
DP1237'https://geodesy.noaa.gov/CORS/data.shtml
DP1237'https://geodesy.noaa.gov/CORS
*** retrieval complete.
Elapsed Time = 00:00:04