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 19:28:26 EST
DM3489 ***********************************************************************
DM3489 HT_MOD - This is a Height Modernization Survey Station.
DM3489 CORS - This is a GPS Continuously Operating Reference Station.
DM3489 DESIGNATION - ADHR OFFICE CORS ARP
DM3489 CORS_ID - ALCE
DM3489 PID - DM3489
DM3489 STATE/COUNTY- AL/BIBB
DM3489 COUNTRY - US
DM3489 USGS QUAD - CENTREVILLE WEST (2018)
DM3489
DM3489 *CURRENT SURVEY CONTROL
DM3489 ______________________________________________________________________
DM3489* NAD 83(2011) POSITION- 32 56 45.62116(N) 087 09 02.27424(W) ADJUSTED
DM3489* NAD 83(2011) ELLIP HT- 57.587 (meters) (12/??/22) ADJUSTED
DM3489* NAD 83(2011) EPOCH - 2010.00
DM3489* NAVD 88 ORTHO HEIGHT - 86.73 (meters) 284.5 (feet) GPS OBS
DM3489 ______________________________________________________________________
DM3489 GEOID HEIGHT - -29.152 (meters) GEOID18
DM3489 NAD 83(2011) X - 266,337.288 (meters) COMP
DM3489 NAD 83(2011) Y - -5,351,158.177 (meters) COMP
DM3489 NAD 83(2011) Z - 3,448,966.328 (meters) COMP
DM3489
DM3489 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DM3489 Standards:
DM3489 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DM3489 Horiz Ellip SD_N SD_E SD_h (unitless)
DM3489 -------------------------------------------------------------------
DM3489 NETWORK 0.21 0.30 0.04 0.10 0.15 -0.00290800
DM3489 -------------------------------------------------------------------
DM3489
DM3489.The coordinates were established by GPS observations
DM3489.and adjusted by the National Geodetic Survey in December 2022.
DM3489
DM3489.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DM3489.been affixed to the stable North American Tectonic Plate.
DM3489
DM3489.The coordinates are valid at the epoch date displayed above
DM3489.which is a decimal equivalence of Year/Month/Day.
DM3489
DM3489.Due to the release of the International GNSS Service (IGS) 2014
DM3489.realization of the International Terrestrial Reference Frame of 2014
DM3489.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DM3489.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DM3489.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DM3489.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DM3489.currently published epoch of 2010.00.
DM3489
DM3489.Additional information on MYCS2 is available at
DM3489.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DM3489
DM3489.The orthometric height was determined by GPS observations and a
DM3489.high-resolution geoid model using precise GPS observation and
DM3489.processing techniques.
DM3489
DM3489.Significant digits in the geoid height do not necessarily reflect accuracy.
DM3489.GEOID18 height accuracy estimate available here.
DM3489
DM3489.The PID for the CORS L1 Phase Center is DR8323.
DM3489
DM3489.Click photographs - Photos may exist for this station.
DM3489
DM3489.The XYZ, and position/ellipsoidal ht. are equivalent.
DM3489
DM3489.The ellipsoidal height was determined by GPS observations
DM3489.and is referenced to NAD 83.
DM3489
DM3489. The following values were computed from the NAD 83(2011) position.
DM3489
DM3489; North East Units Scale Factor Converg.
DM3489;SPC AL W - 326,678.872 632,667.365 MT 0.99994649 +0 11 24.0
DM3489;UTM 16 - 3,645,311.242 485,920.040 MT 0.99960244 -0 04 54.9
DM3489
DM3489! - Elev Factor x Scale Factor = Combined Factor
DM3489!SPC AL W - 0.99999096 x 0.99994649 = 0.99993745
DM3489!UTM 16 - 0.99999096 x 0.99960244 = 0.99959340
DM3489
DM3489_U.S. NATIONAL GRID SPATIAL ADDRESS: 16SDB8592045311(NAD 83)
DM3489
DM3489 SUPERSEDED SURVEY CONTROL
DM3489
DM3489 NAD 83(2011)- 32 56 45.62205(N) 087 09 02.27424(W) AD(2010.00) c
DM3489 ELLIP H (09/??/22) 57.587 (m) GP(2010.00) c c
DM3489 NAD 83(2011)- 32 56 45.62116(N) 087 09 02.27424(W) AD(2010.00) c
DM3489 ELLIP H (06/??/19) 57.587 (m) GP(2010.00) c c
DM3489 NAD 83(2011)- 32 56 45.62114(N) 087 09 02.27419(W) AD(2010.00) c
DM3489 ELLIP H (08/??/11) 57.583 (m) GP(2010.00) c c
DM3489 NAD 83(CORS)- 32 56 45.62155(N) 087 09 02.27490(W) AD(2002.00) c
DM3489 ELLIP H (09/??/10) 57.563 (m) GP(2002.00) c c
DM3489
DM3489.Superseded values are not recommended for survey control.
DM3489
DM3489.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DM3489.See file dsdata.pdf to determine how the superseded data were derived.
DM3489
DM3489_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DM3489
DM3489 STATION DESCRIPTION
DM3489
DM3489'DESCRIBED BY NATIONAL GEODETIC SURVEY 2022
DM3489'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DM3489'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DM3489'ACCESSIBLE AT THE WORLDWIDE WEB.
DM3489'https://geodesy.noaa.gov/CORS/data.shtml
DM3489'https://geodesy.noaa.gov/CORS
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