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 18, 2025 20:59:50 EST
DG9330 ***********************************************************************
DG9330 CORS - This is a GPS Continuously Operating Reference Station.
DG9330 DESIGNATION - CALERA COOP CORS ARP
DG9330 CORS_ID - ALCA
DG9330 PID - DG9330
DG9330 STATE/COUNTY- AL/SHELBY
DG9330 COUNTRY - US
DG9330 USGS QUAD - MONTEVALLO (2018)
DG9330
DG9330 *CURRENT SURVEY CONTROL
DG9330 ______________________________________________________________________
DG9330* NAD 83(2011) POSITION- 33 06 16.38158(N) 086 45 01.95699(W) ADJUSTED
DG9330* NAD 83(2011) ELLIP HT- 129.270 (meters) (06/??/19) ADJUSTED
DG9330* NAD 83(2011) EPOCH - 2010.00
DG9330 ______________________________________________________________________
DG9330 GEOID HEIGHT - -29.067 (meters) GEOID18
DG9330 NAD 83(2011) X - 303,157.050 (meters) COMP
DG9330 NAD 83(2011) Y - -5,339,660.116 (meters) COMP
DG9330 NAD 83(2011) Z - 3,463,748.036 (meters) COMP
DG9330
DG9330.Formal positional accuracy estimates are not available for this CORS
DG9330.because its coordinates were determined in part using modeled
DG9330.velocities. Approximate one-sigma accuracies for latitude, longitude,
DG9330.and ellipsoid height can be obtained from the short-term time series.
DG9330.Additional information regarding modeled velocities is available on
DG9330.the CORS Coordinates for MYCS2 web page:
DG9330.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DG9330
DG9330.The coordinates were established by GPS observations
DG9330.and adjusted by the National Geodetic Survey in June 2019.
DG9330
DG9330.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DG9330.been affixed to the stable North American Tectonic Plate.
DG9330
DG9330.The coordinates are valid at the epoch date displayed above
DG9330.which is a decimal equivalence of Year/Month/Day.
DG9330
DG9330.Due to the release of the International GNSS Service (IGS) 2014
DG9330.realization of the International Terrestrial Reference Frame of 2014
DG9330.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DG9330.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DG9330.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DG9330.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DG9330.currently published epoch of 2010.00.
DG9330
DG9330.Additional information on MYCS2 is available at
DG9330.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DG9330
DG9330.Significant digits in the geoid height do not necessarily reflect accuracy.
DG9330.GEOID18 height accuracy estimate available here.
DG9330
DG9330.The PID for the CORS L1 Phase Center is DG9331.
DG9330
DG9330.Click photographs - Photos may exist for this station.
DG9330
DG9330.The XYZ, and position/ellipsoidal ht. are equivalent.
DG9330
DG9330.The ellipsoidal height was determined by GPS observations
DG9330.and is referenced to NAD 83.
DG9330
DG9330. The following values were computed from the NAD 83(2011) position.
DG9330
DG9330; North East Units Scale Factor Converg.
DG9330;SPC AL W - 344,456.788 669,952.535 MT 0.99999365 +0 24 33.6
DG9330;UTM 16 - 3,662,905.187 523,275.684 MT 0.99960668 +0 08 10.5
DG9330
DG9330! - Elev Factor x Scale Factor = Combined Factor
DG9330!SPC AL W - 0.99997971 x 0.99999365 = 0.99997336
DG9330!UTM 16 - 0.99997971 x 0.99960668 = 0.99958639
DG9330
DG9330_U.S. NATIONAL GRID SPATIAL ADDRESS: 16SEB2327562905(NAD 83)
DG9330
DG9330 SUPERSEDED SURVEY CONTROL
DG9330
DG9330 NAD 83(2011)- 33 06 16.38153(N) 086 45 01.95694(W) AD(2010.00) c
DG9330 ELLIP H (08/??/11) 129.272 (m) GP(2010.00) c c
DG9330 NAD 83(CORS)- 33 06 16.38167(N) 086 45 01.95760(W) AD(2002.00) c
DG9330 ELLIP H (03/??/05) 129.272 (m) GP(2002.00) c c
DG9330
DG9330.Superseded values are not recommended for survey control.
DG9330
DG9330.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DG9330.See file dsdata.pdf to determine how the superseded data were derived.
DG9330
DG9330_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DG9330
DG9330 STATION DESCRIPTION
DG9330
DG9330'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DG9330'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DG9330'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DG9330'ACCESSIBLE AT THE WORLDWIDE WEB.
DG9330'https://geodesy.noaa.gov/CORS/data.shtml
DG9330'https://geodesy.noaa.gov/CORS
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