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 07:39:24 EST
DL6477 ***********************************************************************
DL6477 CORS - This is a GPS Continuously Operating Reference Station.
DL6477 DESIGNATION - SG27_AKDA_AK2002 CORS ARP
DL6477 CORS_ID - SG27
DL6477 PID - DL6477
DL6477 STATE/COUNTY- AK/NORTH SLOPE BOROUGH
DL6477 COUNTRY - US
DL6477 USGS QUAD -
DL6477
DL6477 *CURRENT SURVEY CONTROL
DL6477 ______________________________________________________________________
DL6477* NAD 83(2011) POSITION- 71 19 22.42956(N) 156 36 37.06324(W) ADJUSTED
DL6477* NAD 83(2011) ELLIP HT- 8.866 (meters) (07/??/22) ADJUSTED
DL6477* NAD 83(2011) EPOCH - 2010.00
DL6477 ______________________________________________________________________
DL6477 GEOID HEIGHT - -2.927 (meters) GEOID12B
DL6477 NAD 83(2011) X - -1,880,318.165 (meters) COMP
DL6477 NAD 83(2011) Y - -813,285.220 (meters) COMP
DL6477 NAD 83(2011) Z - 6,019,923.581 (meters) COMP
DL6477
DL6477 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DL6477 Standards:
DL6477 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DL6477 Horiz Ellip SD_N SD_E SD_h (unitless)
DL6477 -------------------------------------------------------------------
DL6477 NETWORK 0.30 0.77 0.13 0.11 0.39 -0.20752900
DL6477 -------------------------------------------------------------------
DL6477
DL6477.The coordinates were established by GPS observations
DL6477.and adjusted by the National Geodetic Survey in July 2022.
DL6477
DL6477.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DL6477.been affixed to the stable North American Tectonic Plate.
DL6477
DL6477.The coordinates are valid at the epoch date displayed above
DL6477.which is a decimal equivalence of Year/Month/Day.
DL6477
DL6477.Due to the release of the International GNSS Service (IGS) 2014
DL6477.realization of the International Terrestrial Reference Frame of 2014
DL6477.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DL6477.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DL6477.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DL6477.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DL6477.currently published epoch of 2010.00.
DL6477
DL6477.Additional information on MYCS2 is available at
DL6477.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DL6477
DL6477.Significant digits in the geoid height do not necessarily reflect accuracy.
DL6477.GEOID12B height accuracy estimate available here.
DL6477
DL6477.The PID for the CORS L1 Phase Center is DM3342.
DL6477
DL6477.Click photographs - Photos may exist for this station.
DL6477
DL6477.The XYZ, and position/ellipsoidal ht. are equivalent.
DL6477
DL6477.The ellipsoidal height was determined by GPS observations
DL6477.and is referenced to NAD 83.
DL6477
DL6477. The following values were computed from the NAD 83(2011) position.
DL6477
DL6477; North East Units Scale Factor Converg.
DL6477;UTM 04 - 7,915,097.329 585,392.188 MT 0.99968918 +2 15 50.4
DL6477
DL6477! - Elev Factor x Scale Factor = Combined Factor
DL6477!UTM 04 - 0.99999861 x 0.99968918 = 0.99968779
DL6477
DL6477_U.S. NATIONAL GRID SPATIAL ADDRESS: 4WEE8539215097(NAD 83)
DL6477
DL6477 SUPERSEDED SURVEY CONTROL
DL6477
DL6477 NAD 83(2011)- 71 19 22.42958(N) 156 36 37.06226(W) AD(2010.00) c
DL6477 ELLIP H (06/??/19) 8.866 (m) GP(2010.00) c c
DL6477 NAD 83(2011)- 71 19 22.42972(N) 156 36 37.06148(W) AD(2010.00) c
DL6477 ELLIP H (08/??/11) 8.861 (m) GP(2010.00) c c
DL6477 NAD 83(CORS)- 71 19 22.42915(N) 156 36 37.06017(W) AD(2003.00) c
DL6477 ELLIP H (02/??/10) 8.875 (m) GP(2003.00) c c
DL6477
DL6477.Superseded values are not recommended for survey control.
DL6477
DL6477.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DL6477.See file dsdata.pdf to determine how the superseded data were derived.
DL6477
DL6477_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DL6477
DL6477 STATION DESCRIPTION
DL6477
DL6477'DESCRIBED BY NATIONAL GEODETIC SURVEY 2022
DL6477'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DL6477'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DL6477'ACCESSIBLE AT THE WORLDWIDE WEB.
DL6477'https://geodesy.noaa.gov/CORS/data.shtml
DL6477'https://geodesy.noaa.gov/CORS
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