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 04:07:53 EST
DM7493 ***********************************************************************
DM7493 CORS - This is a GPS Continuously Operating Reference Station.
DM7493 DESIGNATION - SANAKISLNDAK2007 CORS ARP
DM7493 CORS_ID - AC42
DM7493 PID - DM7493
DM7493 STATE/COUNTY- AK/ALEUTIANS EAST BOROUGH
DM7493 COUNTRY - US
DM7493 USGS QUAD -
DM7493
DM7493 *CURRENT SURVEY CONTROL
DM7493 ______________________________________________________________________
DM7493* NAD 83(2011) POSITION- 54 28 18.40308(N) 162 47 01.07362(W) ADJUSTED
DM7493* NAD 83(2011) ELLIP HT- 257.244 (meters) (07/??/23) ADJUSTED
DM7493* NAD 83(2011) EPOCH - 2010.00
DM7493 ______________________________________________________________________
DM7493 GEOID HEIGHT - 16.110 (meters) GEOID12B
DM7493 NAD 83(2011) X - -3,548,309.899 (meters) COMP
DM7493 NAD 83(2011) Y - -1,099,496.320 (meters) COMP
DM7493 NAD 83(2011) Z - 5,167,644.522 (meters) COMP
DM7493
DM7493 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DM7493 Standards:
DM7493 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DM7493 Horiz Ellip SD_N SD_E SD_h (unitless)
DM7493 -------------------------------------------------------------------
DM7493 NETWORK 0.16 0.50 0.08 0.05 0.26 0.07606000
DM7493 -------------------------------------------------------------------
DM7493
DM7493.The coordinates were established by GPS observations
DM7493.and adjusted by the National Geodetic Survey in July 2023.
DM7493
DM7493.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DM7493.been affixed to the stable North American Tectonic Plate.
DM7493
DM7493.The coordinates are valid at the epoch date displayed above
DM7493.which is a decimal equivalence of Year/Month/Day.
DM7493
DM7493.Due to the release of the International GNSS Service (IGS) 2014
DM7493.realization of the International Terrestrial Reference Frame of 2014
DM7493.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DM7493.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DM7493.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DM7493.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DM7493.currently published epoch of 2010.00.
DM7493
DM7493.Additional information on MYCS2 is available at
DM7493.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DM7493
DM7493.Significant digits in the geoid height do not necessarily reflect accuracy.
DM7493.GEOID12B height accuracy estimate available here.
DM7493
DM7493.The PID for the CORS L1 Phase Center is DM7494.
DM7493
DM7493.Click photographs - Photos may exist for this station.
DM7493
DM7493.The XYZ, and position/ellipsoidal ht. are equivalent.
DM7493
DM7493.The ellipsoidal height was determined by GPS observations
DM7493.and is referenced to NAD 83.
DM7493
DM7493. The following values were computed from the NAD 83(2011) position.
DM7493
DM7493; North East Units Scale Factor Converg.
DM7493;UTM 03 - 6,038,275.237 643,622.677 MT 0.99985309 +1 48 14.6
DM7493
DM7493! - Elev Factor x Scale Factor = Combined Factor
DM7493!UTM 03 - 0.99995971 x 0.99985309 = 0.99981281
DM7493
DM7493_U.S. NATIONAL GRID SPATIAL ADDRESS: 3UXA4362238275(NAD 83)
DM7493
DM7493 SUPERSEDED SURVEY CONTROL
DM7493
DM7493 NAD 83(2011)- 54 28 18.40319(N) 162 47 01.07472(W) AD(2010.00) c
DM7493 ELLIP H (06/??/19) 257.245 (m) GP(2010.00) c c
DM7493 NAD 83(2011)- 54 28 18.40316(N) 162 47 01.07496(W) AD(2010.00) c
DM7493 ELLIP H (12/??/11) 257.243 (m) GP(2010.00) c c
DM7493 NAD 83(CORS)- 54 28 18.40289(N) 162 47 01.07360(W) AD(2003.00) c
DM7493 ELLIP H (05/??/11) 257.246 (m) GP(2003.00) c c
DM7493
DM7493.Superseded values are not recommended for survey control.
DM7493
DM7493.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DM7493.See file dsdata.pdf to determine how the superseded data were derived.
DM7493
DM7493_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DM7493
DM7493 STATION DESCRIPTION
DM7493
DM7493'DESCRIBED BY NATIONAL GEODETIC SURVEY 2023
DM7493'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DM7493'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DM7493'ACCESSIBLE AT THE WORLDWIDE WEB.
DM7493'https://geodesy.noaa.gov/CORS/data.shtml
DM7493'https://geodesy.noaa.gov/CORS
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