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 15:01:51 EST
DM2660 ***********************************************************************
DM2660 CORS - This is a GPS Continuously Operating Reference Station.
DM2660 DESIGNATION - ALDOT 9 DIV DIS 2 CORS ARP
DM2660 CORS_ID - AL92
DM2660 PID - DM2660
DM2660 STATE/COUNTY- AL/BALDWIN
DM2660 COUNTRY - US
DM2660 USGS QUAD - BAY MINETTE NORTH (2018)
DM2660
DM2660 *CURRENT SURVEY CONTROL
DM2660 ______________________________________________________________________
DM2660* NAD 83(2011) POSITION- 30 54 58.98642(N) 087 46 32.46227(W) ADJUSTED
DM2660* NAD 83(2011) ELLIP HT- 62.342 (meters) (06/??/19) ADJUSTED
DM2660* NAD 83(2011) EPOCH - 2010.00
DM2660* NAVD 88 ORTHO HEIGHT - 90.653 (meters) 297.42 (feet) ADJUSTED
DM2660* NAVD 88 EPOCH - 2009.55
DM2660 **This station is located in a suspected subsidence area (see below).
DM2660 ______________________________________________________________________
DM2660 GEOID HEIGHT - -28.312 (meters) GEOID18
DM2660 NAD 83(2011) X - 212,565.466 (meters) COMP
DM2660 NAD 83(2011) Y - -5,472,686.801 (meters) COMP
DM2660 NAD 83(2011) Z - 3,257,975.887 (meters) COMP
DM2660 VERT ORDER - SECOND CLASS I
DM2660
DM2660 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DM2660 Standards:
DM2660 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DM2660 Horiz Ellip SD_N SD_E SD_h (unitless)
DM2660 -------------------------------------------------------------------
DM2660 NETWORK 0.16 0.45 0.06 0.07 0.23 0.03311700
DM2660 -------------------------------------------------------------------
DM2660
DM2660.The coordinates were established by GPS observations
DM2660.and adjusted by the National Geodetic Survey in June 2019.
DM2660
DM2660.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DM2660.been affixed to the stable North American Tectonic Plate.
DM2660
DM2660.The coordinates are valid at the epoch date displayed above
DM2660.which is a decimal equivalence of Year/Month/Day.
DM2660
DM2660.Due to the release of the International GNSS Service (IGS) 2014
DM2660.realization of the International Terrestrial Reference Frame of 2014
DM2660.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DM2660.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DM2660.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DM2660.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DM2660.currently published epoch of 2010.00.
DM2660
DM2660.Additional information on MYCS2 is available at
DM2660.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DM2660
DM2660.** This station is in an area of known vertical motion. Due to the
DM2660.** variability of land subsidence, uplift, and crustal motion, NGS has,
DM2660.** determined the orthometric heights for marks in these suspect
DM2660.** subsidence areas should be considered valid only at the epoch date
DM2660.** associated with the orthometric height. These heights must always
DM2660.** be validated when used as control. All previously superseded
DM2660.** orthometric heights are now considered suspect and are available
DM2660.** in the superseded section. NGS does not recommend using suspect
DM2660.** or superseded heights as control.
DM2660
DM2660.The orthometric height was determined by differential leveling and
DM2660.adjusted by the NATIONAL GEODETIC SURVEY
DM2660.in August 2012.
DM2660
DM2660.No vertical observational check was made to the station.
DM2660
DM2660.Significant digits in the geoid height do not necessarily reflect accuracy.
DM2660.GEOID18 height accuracy estimate available here.
DM2660
DM2660.The PID for the CORS L1 Phase Center is DP5442.
DM2660
DM2660.Click photographs - Photos may exist for this station.
DM2660
DM2660.The XYZ, and position/ellipsoidal ht. are equivalent.
DM2660
DM2660.The ellipsoidal height was determined by GPS observations
DM2660.and is referenced to NAD 83.
DM2660
DM2660. The following values were computed from the NAD 83(2011) position.
DM2660
DM2660; North East Units Scale Factor Converg.
DM2660;SPC AL W - 101,616.446 573,649.770 MT 0.99994190 -0 08 29.9
DM2660;UTM 16 - 3,420,593.145 425,882.896 MT 0.99966776 -0 23 54.8
DM2660
DM2660! - Elev Factor x Scale Factor = Combined Factor
DM2660!SPC AL W - 0.99999021 x 0.99994190 = 0.99993211
DM2660!UTM 16 - 0.99999021 x 0.99966776 = 0.99965797
DM2660
DM2660_U.S. NATIONAL GRID SPATIAL ADDRESS: 16RDV2588220593(NAD 83)
DM2660
DM2660 SUPERSEDED SURVEY CONTROL
DM2660
DM2660 NAD 83(2011)- 30 54 58.98596(N) 087 46 32.46231(W) AD(2010.00) c
DM2660 ELLIP H (08/??/11) 62.350 (m) GP(2010.00) c c
DM2660 NAD 83(CORS)- 30 54 58.98641(N) 087 46 32.46311(W) AD(2002.00) c
DM2660 ELLIP H (08/??/10) 62.325 (m) GP(2002.00) c c
DM2660
DM2660.Superseded values are not recommended for survey control.
DM2660
DM2660.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DM2660.See file dsdata.pdf to determine how the superseded data were derived.
DM2660
DM2660_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DM2660
DM2660 STATION DESCRIPTION
DM2660
DM2660'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DM2660'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DM2660'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DM2660'ACCESSIBLE AT THE WORLDWIDE WEB.
DM2660'https://geodesy.noaa.gov/CORS/data.shtml
DM2660'https://geodesy.noaa.gov/CORS
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