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 19, 2025 12:04:22 EST
DL3486 ***********************************************************************
DL3486 CORS - This is a GPS Continuously Operating Reference Station.
DL3486 DESIGNATION - DAUPHIN ISLAND CORS ARP
DL3486 CORS_ID - ALDI
DL3486 PID - DL3486
DL3486 STATE/COUNTY- AL/MOBILE
DL3486 COUNTRY - US
DL3486 USGS QUAD - FORT MORGAN (2018)
DL3486
DL3486 *CURRENT SURVEY CONTROL
DL3486 ______________________________________________________________________
DL3486* NAD 83(2011) POSITION- 30 14 56.98800(N) 088 04 40.68849(W) ADJUSTED
DL3486* NAD 83(2011) ELLIP HT- -17.791 (meters) (06/??/19) ADJUSTED
DL3486* NAD 83(2011) EPOCH - 2010.00
DL3486* NAVD 88 ORTHO HEIGHT - 9.896 (meters) 32.47 (feet) ADJUSTED
DL3486* NAVD 88 EPOCH - 2009.55
DL3486 **This station is located in a suspected subsidence area (see below).
DL3486 ______________________________________________________________________
DL3486 GEOID HEIGHT - -27.701 (meters) GEOID18
DL3486 NAD 83(2011) X - 184,949.386 (meters) COMP
DL3486 NAD 83(2011) Y - -5,511,276.432 (meters) COMP
DL3486 NAD 83(2011) Z - 3,194,255.059 (meters) COMP
DL3486 VERT ORDER - FIRST CLASS II
DL3486
DL3486 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DL3486 Standards:
DL3486 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DL3486 Horiz Ellip SD_N SD_E SD_h (unitless)
DL3486 -------------------------------------------------------------------
DL3486 NETWORK 0.19 0.36 0.05 0.09 0.19 0.00034300
DL3486 -------------------------------------------------------------------
DL3486
DL3486.The coordinates were established by GPS observations
DL3486.and adjusted by the National Geodetic Survey in June 2019.
DL3486
DL3486.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DL3486.been affixed to the stable North American Tectonic Plate.
DL3486
DL3486.The coordinates are valid at the epoch date displayed above
DL3486.which is a decimal equivalence of Year/Month/Day.
DL3486
DL3486.Due to the release of the International GNSS Service (IGS) 2014
DL3486.realization of the International Terrestrial Reference Frame of 2014
DL3486.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DL3486.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DL3486.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DL3486.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DL3486.currently published epoch of 2010.00.
DL3486
DL3486.Additional information on MYCS2 is available at
DL3486.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DL3486
DL3486.** This station is in an area of known vertical motion. Due to the
DL3486.** variability of land subsidence, uplift, and crustal motion, NGS has,
DL3486.** determined the orthometric heights for marks in these suspect
DL3486.** subsidence areas should be considered valid only at the epoch date
DL3486.** associated with the orthometric height. These heights must always
DL3486.** be validated when used as control. All previously superseded
DL3486.** orthometric heights are now considered suspect and are available
DL3486.** in the superseded section. NGS does not recommend using suspect
DL3486.** or superseded heights as control.
DL3486
DL3486.The orthometric height was determined by differential leveling and
DL3486.adjusted by the NATIONAL GEODETIC SURVEY
DL3486.in July 2012.
DL3486
DL3486.No vertical observational check was made to the station.
DL3486
DL3486.Significant digits in the geoid height do not necessarily reflect accuracy.
DL3486.GEOID18 height accuracy estimate available here.
DL3486
DL3486.The PID for the CORS L1 Phase Center is DP5446.
DL3486
DL3486.Click photographs - Photos may exist for this station.
DL3486
DL3486.The XYZ, and position/ellipsoidal ht. are equivalent.
DL3486
DL3486.The ellipsoidal height was determined by GPS observations
DL3486.and is referenced to NAD 83.
DL3486
DL3486. The following values were computed from the NAD 83(2011) position.
DL3486
DL3486; North East Units Scale Factor Converg.
DL3486;SPC AL W - 27,760.379 544,376.996 MT 0.99997149 -0 17 28.2
DL3486;UTM 16 - 3,346,886.701 396,290.051 MT 0.99973269 -0 32 35.1
DL3486
DL3486! - Elev Factor x Scale Factor = Combined Factor
DL3486!SPC AL W - 1.00000279 x 0.99997149 = 0.99997428
DL3486!UTM 16 - 1.00000279 x 0.99973269 = 0.99973548
DL3486
DL3486_U.S. NATIONAL GRID SPATIAL ADDRESS: 16RCU9629046886(NAD 83)
DL3486
DL3486 SUPERSEDED SURVEY CONTROL
DL3486
DL3486 NAD 83(2011)- 30 14 56.98762(N) 088 04 40.68841(W) AD(2010.00) c
DL3486 ELLIP H (08/??/11) -17.793 (m) GP(2010.00) c c
DL3486 NAD 83(CORS)- 30 14 56.98803(N) 088 04 40.68902(W) AD(2002.00) c
DL3486 ELLIP H (06/??/09) -17.791 (m) GP(2002.00) c c
DL3486
DL3486.Superseded values are not recommended for survey control.
DL3486
DL3486.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DL3486.See file dsdata.pdf to determine how the superseded data were derived.
DL3486
DL3486_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DL3486
DL3486 STATION DESCRIPTION
DL3486
DL3486'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DL3486'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DL3486'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DL3486'ACCESSIBLE AT THE WORLDWIDE WEB.
DL3486'https://geodesy.noaa.gov/CORS/data.shtml
DL3486'https://geodesy.noaa.gov/CORS
*** retrieval complete.
Elapsed Time = 00:00:03