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 20, 2025 09:01:24 EST
DM4636 ***********************************************************************
DM4636 CORS - This is a GPS Continuously Operating Reference Station.
DM4636 DESIGNATION - ALEXANDRIA CORS ARP
DM4636 CORS_ID - INAX
DM4636 PID - DM4636
DM4636 STATE/COUNTY- IN/MADISON
DM4636 COUNTRY - US
DM4636 USGS QUAD - ALEXANDRIA (2019)
DM4636
DM4636 *CURRENT SURVEY CONTROL
DM4636 ______________________________________________________________________
DM4636* NAD 83(2011) POSITION- 40 16 41.71275(N) 085 40 10.54023(W) ADJUSTED
DM4636* NAD 83(2011) ELLIP HT- 242.015 (meters) (06/??/19) ADJUSTED
DM4636* NAD 83(2011) EPOCH - 2010.00
DM4636 ______________________________________________________________________
DM4636 GEOID HEIGHT - -34.104 (meters) GEOID18
DM4636 NAD 83(2011) X - 367,948.097 (meters) COMP
DM4636 NAD 83(2011) Y - -4,859,063.590 (meters) COMP
DM4636 NAD 83(2011) Z - 4,101,761.828 (meters) COMP
DM4636
DM4636 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DM4636 Standards:
DM4636 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DM4636 Horiz Ellip SD_N SD_E SD_h (unitless)
DM4636 -------------------------------------------------------------------
DM4636 NETWORK 0.19 0.36 0.05 0.09 0.18 -0.10040500
DM4636 -------------------------------------------------------------------
DM4636
DM4636.The coordinates were established by GPS observations
DM4636.and adjusted by the National Geodetic Survey in June 2019.
DM4636
DM4636.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DM4636.been affixed to the stable North American Tectonic Plate.
DM4636
DM4636.The coordinates are valid at the epoch date displayed above
DM4636.which is a decimal equivalence of Year/Month/Day.
DM4636
DM4636.Due to the release of the International GNSS Service (IGS) 2014
DM4636.realization of the International Terrestrial Reference Frame of 2014
DM4636.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DM4636.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DM4636.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DM4636.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DM4636.currently published epoch of 2010.00.
DM4636
DM4636.Additional information on MYCS2 is available at
DM4636.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DM4636
DM4636.Significant digits in the geoid height do not necessarily reflect accuracy.
DM4636.GEOID18 height accuracy estimate available here.
DM4636
DM4636.The PID for the CORS L1 Phase Center is DS2872.
DM4636
DM4636.Click photographs - Photos may exist for this station.
DM4636
DM4636.The XYZ, and position/ellipsoidal ht. are equivalent.
DM4636
DM4636.The ellipsoidal height was determined by GPS observations
DM4636.and is referenced to NAD 83.
DM4636
DM4636. The following values were computed from the NAD 83(2011) position.
DM4636
DM4636; North East Units Scale Factor Converg.
DM4636;SPC IN E - 558,413.135 99,751.006 MT 0.99996667 -0 00 06.8
DM4636;SPC IN E - 1,832,060.43 327,266.43 sFT 0.99996667 -0 00 06.8
DM4636;UTM 16 - 4,459,490.398 613,102.409 MT 0.99975747 +0 51 36.7
DM4636
DM4636! - Elev Factor x Scale Factor = Combined Factor
DM4636!SPC IN E - 0.99996204 x 0.99996667 = 0.99992871
DM4636!UTM 16 - 0.99996204 x 0.99975747 = 0.99971951
DM4636
DM4636_U.S. NATIONAL GRID SPATIAL ADDRESS: 16TFK1310259490(NAD 83)
DM4636
DM4636 SUPERSEDED SURVEY CONTROL
DM4636
DM4636 NAD 83(2011)- 40 16 41.71278(N) 085 40 10.54021(W) AD(2010.00) c
DM4636 ELLIP H (08/??/11) 242.009 (m) GP(2010.00) c c
DM4636 NAD 83(CORS)- 40 16 41.71319(N) 085 40 10.54125(W) AD(2002.00) c
DM4636 ELLIP H (12/??/10) 241.994 (m) GP(2002.00) c c
DM4636
DM4636.Superseded values are not recommended for survey control.
DM4636
DM4636.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DM4636.See file dsdata.pdf to determine how the superseded data were derived.
DM4636
DM4636_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DM4636
DM4636 STATION DESCRIPTION
DM4636
DM4636'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DM4636'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DM4636'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DM4636'ACCESSIBLE AT THE WORLDWIDE WEB.
DM4636'https://geodesy.noaa.gov/CORS/data.shtml
DM4636'https://geodesy.noaa.gov/CORS
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