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 03:23:17 EST
DL6435 ***********************************************************************
DL6435 CORS - This is a GPS Continuously Operating Reference Station.
DL6435 DESIGNATION - KOBUK_VALLAK2007 CORS ARP
DL6435 CORS_ID - AB27
DL6435 PID - DL6435
DL6435 STATE/COUNTY- AK/NORTHWEST ARCTIC BOROUGH
DL6435 COUNTRY - US
DL6435 USGS QUAD - AMBLER RIVER A-2 SW (2016)
DL6435
DL6435 *CURRENT SURVEY CONTROL
DL6435 ______________________________________________________________________
DL6435* NAD 83(2011) POSITION- 67 03 21.19878(N) 156 54 17.49280(W) ADJUSTED
DL6435* NAD 83(2011) ELLIP HT- 507.557 (meters) (06/??/19) ADJUSTED
DL6435* NAD 83(2011) EPOCH - 2010.00
DL6435 ______________________________________________________________________
DL6435 GEOID HEIGHT - 5.036 (meters) GEOID12B
DL6435 NAD 83(2011) X - -2,293,836.633 (meters) COMP
DL6435 NAD 83(2011) Y - -978,174.319 (meters) COMP
DL6435 NAD 83(2011) Z - 5,851,313.301 (meters) COMP
DL6435
DL6435 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DL6435 Standards:
DL6435 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DL6435 Horiz Ellip SD_N SD_E SD_h (unitless)
DL6435 -------------------------------------------------------------------
DL6435 NETWORK 0.27 0.83 0.13 0.09 0.42 -0.00596200
DL6435 -------------------------------------------------------------------
DL6435
DL6435.The coordinates were established by GPS observations
DL6435.and adjusted by the National Geodetic Survey in June 2019.
DL6435
DL6435.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DL6435.been affixed to the stable North American Tectonic Plate.
DL6435
DL6435.The coordinates are valid at the epoch date displayed above
DL6435.which is a decimal equivalence of Year/Month/Day.
DL6435
DL6435.Due to the release of the International GNSS Service (IGS) 2014
DL6435.realization of the International Terrestrial Reference Frame of 2014
DL6435.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DL6435.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DL6435.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DL6435.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DL6435.currently published epoch of 2010.00.
DL6435
DL6435.Additional information on MYCS2 is available at
DL6435.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DL6435
DL6435.Significant digits in the geoid height do not necessarily reflect accuracy.
DL6435.GEOID12B height accuracy estimate available here.
DL6435
DL6435.The PID for the CORS L1 Phase Center is DL6436.
DL6435
DL6435.Click photographs - Photos may exist for this station.
DL6435
DL6435.The XYZ, and position/ellipsoidal ht. are equivalent.
DL6435
DL6435.The ellipsoidal height was determined by GPS observations
DL6435.and is referenced to NAD 83.
DL6435
DL6435. The following values were computed from the NAD 83(2011) position.
DL6435
DL6435; North East Units Scale Factor Converg.
DL6435;SPC AK 6 - 1,454,944.571 547,653.443 MT 0.99992778 +1 00 30.7
DL6435;UTM 04 - 7,439,144.999 591,129.343 MT 0.99970164 +1 55 46.3
DL6435
DL6435! - Elev Factor x Scale Factor = Combined Factor
DL6435!SPC AK 6 - 0.99992061 x 0.99992778 = 0.99984840
DL6435!UTM 04 - 0.99992061 x 0.99970164 = 0.99962228
DL6435
DL6435_U.S. NATIONAL GRID SPATIAL ADDRESS: 4WEV9112939144(NAD 83)
DL6435
DL6435 SUPERSEDED SURVEY CONTROL
DL6435
DL6435 NAD 83(2011)- 67 03 21.19874(N) 156 54 17.49266(W) AD(2010.00) c
DL6435 ELLIP H (08/??/11) 507.554 (m) GP(2010.00) c c
DL6435 NAD 83(CORS)- 67 03 21.19827(N) 156 54 17.49131(W) AD(2003.00) c
DL6435 ELLIP H (02/??/10) 507.568 (m) GP(2003.00) c c
DL6435
DL6435.Superseded values are not recommended for survey control.
DL6435
DL6435.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DL6435.See file dsdata.pdf to determine how the superseded data were derived.
DL6435
DL6435_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DL6435
DL6435 STATION DESCRIPTION
DL6435
DL6435'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DL6435'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DL6435'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DL6435'ACCESSIBLE AT THE WORLDWIDE WEB.
DL6435'https://geodesy.noaa.gov/CORS/data.shtml
DL6435'https://geodesy.noaa.gov/CORS
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