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 09:19:19 EST
DM3977 ***********************************************************************
DM3977 CORS - This is a GPS Continuously Operating Reference Station.
DM3977 DESIGNATION - AL IND DEAF BLIND CORS ARP
DM3977 CORS_ID - ALTA
DM3977 PID - DM3977
DM3977 STATE/COUNTY- AL/TALLADEGA
DM3977 COUNTRY - US
DM3977 USGS QUAD - TALLADEGA (2018)
DM3977
DM3977 *CURRENT SURVEY CONTROL
DM3977 ______________________________________________________________________
DM3977* NAD 83(2011) POSITION- 33 25 24.57390(N) 086 07 16.28681(W) ADJUSTED
DM3977* NAD 83(2011) ELLIP HT- 149.900 (meters) (12/??/22) ADJUSTED
DM3977* NAD 83(2011) EPOCH - 2010.00
DM3977* NAVD 88 ORTHO HEIGHT - 178.806 (meters) 586.63 (feet) ADJUSTED
DM3977 ______________________________________________________________________
DM3977 GEOID HEIGHT - -28.848 (meters) GEOID18
DM3977 NAD 83(2011) X - 360,478.541 (meters) COMP
DM3977 NAD 83(2011) Y - -5,316,666.993 (meters) COMP
DM3977 NAD 83(2011) Z - 3,493,337.688 (meters) COMP
DM3977 VERT ORDER - SECOND CLASS I
DM3977
DM3977 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DM3977 Standards:
DM3977 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DM3977 Horiz Ellip SD_N SD_E SD_h (unitless)
DM3977 -------------------------------------------------------------------
DM3977 NETWORK 0.17 0.31 0.05 0.08 0.16 0.02421600
DM3977 -------------------------------------------------------------------
DM3977
DM3977.The coordinates were established by GPS observations
DM3977.and adjusted by the National Geodetic Survey in December 2022.
DM3977
DM3977.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DM3977.been affixed to the stable North American Tectonic Plate.
DM3977
DM3977.The coordinates are valid at the epoch date displayed above
DM3977.which is a decimal equivalence of Year/Month/Day.
DM3977
DM3977.Due to the release of the International GNSS Service (IGS) 2014
DM3977.realization of the International Terrestrial Reference Frame of 2014
DM3977.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DM3977.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DM3977.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DM3977.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DM3977.currently published epoch of 2010.00.
DM3977
DM3977.Additional information on MYCS2 is available at
DM3977.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DM3977
DM3977.The orthometric height was determined by differential leveling and
DM3977.adjusted by the NATIONAL GEODETIC SURVEY
DM3977.in December 2015.
DM3977
DM3977.Significant digits in the geoid height do not necessarily reflect accuracy.
DM3977.GEOID18 height accuracy estimate available here.
DM3977
DM3977.The PID for the CORS L1 Phase Center is DM3978.
DM3977
DM3977.Click photographs - Photos may exist for this station.
DM3977
DM3977.The XYZ, and position/ellipsoidal ht. are equivalent.
DM3977
DM3977.The ellipsoidal height was determined by GPS observations
DM3977.and is referenced to NAD 83.
DM3977
DM3977. The following values were computed from the NAD 83(2011) position.
DM3977
DM3977; North East Units Scale Factor Converg.
DM3977;SPC AL E - 324,199.218 173,229.073 MT 0.99996883 -0 09 30.8
DM3977;UTM 16 - 3,698,582.136 581,701.529 MT 0.99968229 +0 29 02.7
DM3977
DM3977! - Elev Factor x Scale Factor = Combined Factor
DM3977!SPC AL E - 0.99997647 x 0.99996883 = 0.99994530
DM3977!UTM 16 - 0.99997647 x 0.99968229 = 0.99965876
DM3977
DM3977_U.S. NATIONAL GRID SPATIAL ADDRESS: 16SEB8170198582(NAD 83)
DM3977
DM3977 SUPERSEDED SURVEY CONTROL
DM3977
DM3977 NAD 83(2011)- 33 25 24.57365(N) 086 07 16.28683(W) AD(2010.00) c
DM3977 ELLIP H (06/??/19) 149.936 (m) GP(2010.00) c c
DM3977 NAD 83(2011)- 33 25 24.57365(N) 086 07 16.28680(W) AD(2010.00) c
DM3977 ELLIP H (08/??/11) 149.933 (m) GP(2010.00) c c
DM3977 NAD 83(CORS)- 33 25 24.57413(N) 086 07 16.28763(W) AD(2002.00) c
DM3977 ELLIP H (10/??/10) 149.926 (m) GP(2002.00) c c
DM3977
DM3977.Superseded values are not recommended for survey control.
DM3977
DM3977.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DM3977.See file dsdata.pdf to determine how the superseded data were derived.
DM3977
DM3977_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DM3977
DM3977 STATION DESCRIPTION
DM3977
DM3977'DESCRIBED BY NATIONAL GEODETIC SURVEY 2022
DM3977'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DM3977'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DM3977'ACCESSIBLE AT THE WORLDWIDE WEB.
DM3977'https://geodesy.noaa.gov/CORS/data.shtml
DM3977'https://geodesy.noaa.gov/CORS
*** retrieval complete.
Elapsed Time = 00:00:04