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 17, 2025 22:42:27 EST
DM3485 ***********************************************************************
DM3485 HT_MOD - This is a Height Modernization Survey Station.
DM3485 CORS - This is a GPS Continuously Operating Reference Station.
DM3485 DESIGNATION - CALHOUN CO AD BLG CORS ARP
DM3485 CORS_ID - ALAS
DM3485 PID - DM3485
DM3485 STATE/COUNTY- AL/CALHOUN
DM3485 COUNTRY - US
DM3485 USGS QUAD - ANNISTON (2018)
DM3485
DM3485 *CURRENT SURVEY CONTROL
DM3485 ______________________________________________________________________
DM3485* NAD 83(2011) POSITION- 33 40 01.18469(N) 085 49 50.46248(W) ADJUSTED
DM3485* NAD 83(2011) ELLIP HT- 204.477 (meters) (04/??/24) ADJUSTED
DM3485* NAD 83(2011) EPOCH - 2010.00
DM3485* NAVD 88 ORTHO HEIGHT - 233.15 (meters) 764.9 (feet) GPS OBS
DM3485 ______________________________________________________________________
DM3485 GEOID HEIGHT - -28.671 (meters) GEOID18
DM3485 NAD 83(2011) X - 386,349.094 (meters) COMP
DM3485 NAD 83(2011) Y - -5,299,930.925 (meters) COMP
DM3485 NAD 83(2011) Z - 3,515,878.218 (meters) COMP
DM3485
DM3485.Formal positional accuracy estimates are not available for this CORS
DM3485.because its coordinates were determined in part using modeled
DM3485.velocities. Approximate one-sigma accuracies for latitude, longitude,
DM3485.and ellipsoid height can be obtained from the short-term time series.
DM3485.Additional information regarding modeled velocities is available on
DM3485.the CORS Coordinates for MYCS2 web page:
DM3485.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DM3485
DM3485.The coordinates were established by GPS observations
DM3485.and adjusted by the National Geodetic Survey in April 2024.
DM3485
DM3485.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DM3485.been affixed to the stable North American Tectonic Plate.
DM3485
DM3485.The coordinates are valid at the epoch date displayed above
DM3485.which is a decimal equivalence of Year/Month/Day.
DM3485
DM3485.Due to the release of the International GNSS Service (IGS) 2014
DM3485.realization of the International Terrestrial Reference Frame of 2014
DM3485.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DM3485.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DM3485.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DM3485.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DM3485.currently published epoch of 2010.00.
DM3485
DM3485.Additional information on MYCS2 is available at
DM3485.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DM3485
DM3485.The orthometric height was determined by GPS observations and a
DM3485.high-resolution geoid model using precise GPS observation and
DM3485.processing techniques.
DM3485
DM3485.Significant digits in the geoid height do not necessarily reflect accuracy.
DM3485.GEOID18 height accuracy estimate available here.
DM3485
DM3485.The PID for the CORS L1 Phase Center is DS2848.
DM3485
DM3485.Click photographs - Photos may exist for this station.
DM3485
DM3485.The XYZ, and position/ellipsoidal ht. are equivalent.
DM3485
DM3485.The ellipsoidal height was determined by GPS observations
DM3485.and is referenced to NAD 83.
DM3485
DM3485. The following values were computed from the NAD 83(2011) position.
DM3485
DM3485; North East Units Scale Factor Converg.
DM3485;SPC AL E - 351,169.039 200,245.697 MT 0.99996000 +0 00 05.3
DM3485;UTM 16 - 3,725,847.416 608,406.263 MT 0.99974488 +0 38 53.8
DM3485
DM3485! - Elev Factor x Scale Factor = Combined Factor
DM3485!SPC AL E - 0.99996790 x 0.99996000 = 0.99992790
DM3485!UTM 16 - 0.99996790 x 0.99974488 = 0.99971279
DM3485
DM3485_U.S. NATIONAL GRID SPATIAL ADDRESS: 16SFC0840625847(NAD 83)
DM3485
DM3485 SUPERSEDED SURVEY CONTROL
DM3485
DM3485 NAD 83(2011)- 33 40 01.18449(N) 085 49 50.46181(W) AD(2010.00) c
DM3485 ELLIP H (03/??/24) 204.535 (m) GP(2010.00) c c
DM3485 NAD 83(2011)- 33 40 01.18448(N) 085 49 50.46240(W) AD(2010.00) c
DM3485 ELLIP H (06/??/19) 204.507 (m) GP(2010.00) c c
DM3485 NAD 83(2011)- 33 40 01.18463(N) 085 49 50.46266(W) AD(2010.00) c
DM3485 ELLIP H (08/??/11) 204.473 (m) GP(2010.00) c c
DM3485 NAD 83(CORS)- 33 40 01.18505(N) 085 49 50.46340(W) AD(2002.00) c
DM3485 ELLIP H (09/??/10) 204.455 (m) GP(2002.00) c c
DM3485
DM3485.Superseded values are not recommended for survey control.
DM3485
DM3485.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DM3485.See file dsdata.pdf to determine how the superseded data were derived.
DM3485
DM3485_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DM3485
DM3485 STATION DESCRIPTION
DM3485
DM3485'DESCRIBED BY NATIONAL GEODETIC SURVEY 2024
DM3485'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DM3485'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DM3485'ACCESSIBLE AT THE WORLDWIDE WEB.
DM3485'https://geodesy.noaa.gov/CORS/data.shtml
DM3485'https://geodesy.noaa.gov/CORS
*** retrieval complete.
Elapsed Time = 00:00:04