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 13:20:45 EST
DL6447 ***********************************************************************
DL6447 CORS - This is a GPS Continuously Operating Reference Station.
DL6447 DESIGNATION - PORTHEIDENAK2007 CORS ARP
DL6447 CORS_ID - AC40
DL6447 PID - DL6447
DL6447 STATE/COUNTY- AK/LAKE AND PENINSULA
DL6447 COUNTRY - US
DL6447 USGS QUAD -
DL6447
DL6447 *CURRENT SURVEY CONTROL
DL6447 ______________________________________________________________________
DL6447* NAD 83(2011) POSITION- 56 55 49.26885(N) 158 37 06.77227(W) ADJUSTED
DL6447* NAD 83(2011) ELLIP HT- 39.329 (meters) (09/??/21) ADJUSTED
DL6447* NAD 83(2011) EPOCH - 2010.00
DL6447 ______________________________________________________________________
DL6447 GEOID HEIGHT - 13.491 (meters) GEOID12B
DL6447 NAD 83(2011) X - -3,248,412.449 (meters) COMP
DL6447 NAD 83(2011) Y - -1,271,825.988 (meters) COMP
DL6447 NAD 83(2011) Z - 5,321,704.940 (meters) COMP
DL6447
DL6447 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DL6447 Standards:
DL6447 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DL6447 Horiz Ellip SD_N SD_E SD_h (unitless)
DL6447 -------------------------------------------------------------------
DL6447 NETWORK 0.15 0.46 0.07 0.05 0.23 0.07384900
DL6447 -------------------------------------------------------------------
DL6447
DL6447.The coordinates were established by GPS observations
DL6447.and adjusted by the National Geodetic Survey in September 2021.
DL6447
DL6447.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DL6447.been affixed to the stable North American Tectonic Plate.
DL6447
DL6447.The coordinates are valid at the epoch date displayed above
DL6447.which is a decimal equivalence of Year/Month/Day.
DL6447
DL6447.Due to the release of the International GNSS Service (IGS) 2014
DL6447.realization of the International Terrestrial Reference Frame of 2014
DL6447.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DL6447.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DL6447.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DL6447.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DL6447.currently published epoch of 2010.00.
DL6447
DL6447.Additional information on MYCS2 is available at
DL6447.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DL6447
DL6447.Significant digits in the geoid height do not necessarily reflect accuracy.
DL6447.GEOID12B height accuracy estimate available here.
DL6447
DL6447.The PID for the CORS L1 Phase Center is DL6448.
DL6447
DL6447.Click photographs - Photos may exist for this station.
DL6447
DL6447.The XYZ, and position/ellipsoidal ht. are equivalent.
DL6447
DL6447.The ellipsoidal height was determined by GPS observations
DL6447.and is referenced to NAD 83.
DL6447
DL6447. The following values were computed from the NAD 83(2011) position.
DL6447
DL6447; North East Units Scale Factor Converg.
DL6447;UTM 04 - 6,309,697.886 523,215.609 MT 0.99960661 +0 19 10.8
DL6447
DL6447! - Elev Factor x Scale Factor = Combined Factor
DL6447!UTM 04 - 0.99999384 x 0.99960661 = 0.99960045
DL6447
DL6447_U.S. NATIONAL GRID SPATIAL ADDRESS: 4VEJ2321509697(NAD 83)
DL6447
DL6447 SUPERSEDED SURVEY CONTROL
DL6447
DL6447 NAD 83(2011)- 56 55 49.27484(N) 158 37 06.77736(W) AD(2010.00) c
DL6447 ELLIP H (10/??/20) 39.329 (m) GP(2010.00) c c
DL6447 NAD 83(2011)- 56 55 49.27592(N) 158 37 06.77734(W) AD(2010.00) c
DL6447 ELLIP H (06/??/19) 39.329 (m) GP(2010.00) c c
DL6447 NAD 83(2011)- 56 55 49.27593(N) 158 37 06.77731(W) AD(2010.00) c
DL6447 ELLIP H (08/??/11) 39.329 (m) GP(2010.00) c c
DL6447 NAD 83(CORS)- 56 55 49.27557(N) 158 37 06.77615(W) AD(2003.00) c
DL6447 ELLIP H (02/??/10) 39.333 (m) GP(2003.00) c c
DL6447
DL6447.Superseded values are not recommended for survey control.
DL6447
DL6447.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DL6447.See file dsdata.pdf to determine how the superseded data were derived.
DL6447
DL6447_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DL6447
DL6447 STATION DESCRIPTION
DL6447
DL6447'DESCRIBED BY NATIONAL GEODETIC SURVEY 2021
DL6447'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DL6447'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DL6447'ACCESSIBLE AT THE WORLDWIDE WEB.
DL6447'https://geodesy.noaa.gov/CORS/data.shtml
DL6447'https://geodesy.noaa.gov/CORS
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