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 12:37:01 EST
AH7396 ***********************************************************************
AH7396 HT_MOD - This is a Height Modernization Survey Station.
AH7396 CORS - This is a GPS Continuously Operating Reference Station.
AH7396 DESIGNATION - SEATTLE WEATHER CORS ARP
AH7396 CORS_ID - SEAW
AH7396 PID - AH7396
AH7396 STATE/COUNTY- WA/KING
AH7396 COUNTRY - US
AH7396 USGS QUAD - SEATTLE NORTH (2017)
AH7396
AH7396 *CURRENT SURVEY CONTROL
AH7396 ______________________________________________________________________
AH7396* NAD 83(2011) POSITION- 47 41 13.20226(N) 122 15 22.62547(W) ADJUSTED
AH7396* NAD 83(2011) ELLIP HT- -3.625 (meters) (06/??/19) ADJUSTED
AH7396* NAD 83(2011) EPOCH - 2010.00
AH7396* NAVD 88 ORTHO HEIGHT - 20.11 (meters) 66.0 (feet) GPS OBS
AH7396 ______________________________________________________________________
AH7396 NAVD 88 orthometric height was determined with geoid model GEOID99
AH7396 GEOID HEIGHT - -23.706 (meters) GEOID99
AH7396 GEOID HEIGHT - -23.744 (meters) GEOID18
AH7396 NAD 83(2011) X - -2,295,749.462 (meters) COMP
AH7396 NAD 83(2011) Y - -3,637,658.449 (meters) COMP
AH7396 NAD 83(2011) Z - 4,693,516.343 (meters) COMP
AH7396
AH7396 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
AH7396 Standards:
AH7396 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
AH7396 Horiz Ellip SD_N SD_E SD_h (unitless)
AH7396 -------------------------------------------------------------------
AH7396 NETWORK 0.18 0.49 0.08 0.06 0.25 -0.29997400
AH7396 -------------------------------------------------------------------
AH7396
AH7396.The coordinates were established by GPS observations
AH7396.and adjusted by the National Geodetic Survey in June 2019.
AH7396
AH7396.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AH7396.been affixed to the stable North American Tectonic Plate.
AH7396
AH7396.The coordinates are valid at the epoch date displayed above
AH7396.which is a decimal equivalence of Year/Month/Day.
AH7396
AH7396.Due to the release of the International GNSS Service (IGS) 2014
AH7396.realization of the International Terrestrial Reference Frame of 2014
AH7396.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
AH7396.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
AH7396.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
AH7396.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
AH7396.currently published epoch of 2010.00.
AH7396
AH7396.Additional information on MYCS2 is available at
AH7396.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
AH7396
AH7396.The orthometric height was determined by GPS observations and a
AH7396.high-resolution geoid model using precise GPS observation and
AH7396.processing techniques.
AH7396
AH7396.Significant digits in the geoid height do not necessarily reflect accuracy.
AH7396.GEOID18 height accuracy estimate available here.
AH7396
AH7396.The PID for the CORS L1 Phase Center is AH7397.
AH7396
AH7396.Click photographs - Photos may exist for this station.
AH7396
AH7396.The XYZ, and position/ellipsoidal ht. are equivalent.
AH7396
AH7396.The ellipsoidal height was determined by GPS observations
AH7396.and is referenced to NAD 83.
AH7396
AH7396. The following values were computed from the NAD 83(2011) position.
AH7396
AH7396; North East Units Scale Factor Converg.
AH7396;SPC WA N - 77,369.591 393,180.273 MT 0.99997037 -1 03 33.9
AH7396;SPC WA N - 253,836.73 1,289,958.95 sFT 0.99997037 -1 03 33.9
AH7396;UTM 10 - 5,281,780.466 555,812.404 MT 0.99963828 +0 32 59.9
AH7396
AH7396! - Elev Factor x Scale Factor = Combined Factor
AH7396!SPC WA N - 1.00000057 x 0.99997037 = 0.99997094
AH7396!UTM 10 - 1.00000057 x 0.99963828 = 0.99963885
AH7396
AH7396_U.S. NATIONAL GRID SPATIAL ADDRESS: 10TET5581281780(NAD 83)
AH7396
AH7396 SUPERSEDED SURVEY CONTROL
AH7396
AH7396 ELLIP H (06/27/12) -3.630 (m) GP(2010.00) 0 0
AH7396 NAD 83(2011)- 47 41 13.20190(N) 122 15 22.62492(W) AD(2010.00) c
AH7396 NAD 83(2011)- 47 41 13.20221(N) 122 15 22.62523(W) AD(2010.00) c
AH7396 ELLIP H (08/??/11) -3.629 (m) GP(2010.00) c c
AH7396 ELLIP H (02/10/07) -3.606 (m) GP(2007.00)
AH7396 NAD 83(2007)- 47 41 13.20166(N) 122 15 22.62701(W) AD(2007.00) c
AH7396 NAD 83(CORS)- 47 41 13.20121(N) 122 15 22.62773(W) AD(2002.00) c
AH7396 ELLIP H (04/??/04) -3.606 (m) GP(2002.00) c c
AH7396 NAD 83(CORS)- 47 41 13.20047(N) 122 15 22.62832(W) AD(2002.00) c
AH7396 ELLIP H (03/??/02) -3.608 (m) GP(2002.00) c c
AH7396 NAD 83(CORS)- 47 41 13.19990(N) 122 15 22.62878(W) AD(1997.00) c
AH7396 ELLIP H (02/??/99) -3.611 (m) GP(1997.00) c c
AH7396
AH7396.Superseded values are not recommended for survey control.
AH7396
AH7396.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AH7396.See file dsdata.pdf to determine how the superseded data were derived.
AH7396
AH7396_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AH7396
AH7396 STATION DESCRIPTION
AH7396
AH7396'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
AH7396'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
AH7396'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
AH7396'ACCESSIBLE AT THE WORLDWIDE WEB.
AH7396'https://geodesy.noaa.gov/CORS/data.shtml
AH7396'https://geodesy.noaa.gov/CORS
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