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 06:45:58 EST
DH7235 ***********************************************************************
DH7235 CORS - This is a GPS Continuously Operating Reference Station.
DH7235 DESIGNATION - SEATTLE WFO CORS ARP
DH7235 CORS_ID - SEAI
DH7235 PID - DH7235
DH7235 STATE/COUNTY- WA/KING
DH7235 COUNTRY - US
DH7235 USGS QUAD - SEATTLE NORTH (2017)
DH7235
DH7235 *CURRENT SURVEY CONTROL
DH7235 ______________________________________________________________________
DH7235* NAD 83(2011) POSITION- 47 41 13.20317(N) 122 15 22.62467(W) ADJUSTED
DH7235* NAD 83(2011) ELLIP HT- -3.590 (meters) (06/??/19) ADJUSTED
DH7235* NAD 83(2011) EPOCH - 2010.00
DH7235 ______________________________________________________________________
DH7235 GEOID HEIGHT - -23.744 (meters) GEOID18
DH7235 NAD 83(2011) X - -2,295,749.449 (meters) COMP
DH7235 NAD 83(2011) Y - -3,637,658.460 (meters) COMP
DH7235 NAD 83(2011) Z - 4,693,516.388 (meters) COMP
DH7235
DH7235 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
DH7235 Standards:
DH7235 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
DH7235 Horiz Ellip SD_N SD_E SD_h (unitless)
DH7235 -------------------------------------------------------------------
DH7235 NETWORK 0.16 0.37 0.07 0.06 0.19 0.25908500
DH7235 -------------------------------------------------------------------
DH7235
DH7235.The coordinates were established by GPS observations
DH7235.and adjusted by the National Geodetic Survey in June 2019.
DH7235
DH7235.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DH7235.been affixed to the stable North American Tectonic Plate.
DH7235
DH7235.The coordinates are valid at the epoch date displayed above
DH7235.which is a decimal equivalence of Year/Month/Day.
DH7235
DH7235.Due to the release of the International GNSS Service (IGS) 2014
DH7235.realization of the International Terrestrial Reference Frame of 2014
DH7235.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DH7235.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DH7235.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DH7235.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DH7235.currently published epoch of 2010.00.
DH7235
DH7235.Additional information on MYCS2 is available at
DH7235.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DH7235
DH7235.Significant digits in the geoid height do not necessarily reflect accuracy.
DH7235.GEOID18 height accuracy estimate available here.
DH7235
DH7235.The PID for the CORS L1 Phase Center is DH7236.
DH7235
DH7235.Click photographs - Photos may exist for this station.
DH7235
DH7235.The XYZ, and position/ellipsoidal ht. are equivalent.
DH7235
DH7235.The ellipsoidal height was determined by GPS observations
DH7235.and is referenced to NAD 83.
DH7235
DH7235. The following values were computed from the NAD 83(2011) position.
DH7235
DH7235; North East Units Scale Factor Converg.
DH7235;SPC WA N - 77,369.619 393,180.290 MT 0.99997037 -1 03 33.9
DH7235;SPC WA N - 253,836.83 1,289,959.00 sFT 0.99997037 -1 03 33.9
DH7235;UTM 10 - 5,281,780.494 555,812.420 MT 0.99963828 +0 32 59.9
DH7235
DH7235! - Elev Factor x Scale Factor = Combined Factor
DH7235!SPC WA N - 1.00000056 x 0.99997037 = 0.99997093
DH7235!UTM 10 - 1.00000056 x 0.99963828 = 0.99963884
DH7235
DH7235_U.S. NATIONAL GRID SPATIAL ADDRESS: 10TET5581281780(NAD 83)
DH7235
DH7235 SUPERSEDED SURVEY CONTROL
DH7235
DH7235 NAD 83(2011)- 47 41 13.20324(N) 122 15 22.62464(W) AD(2010.00) c
DH7235 ELLIP H (08/??/11) -3.591 (m) GP(2010.00) c c
DH7235 NAD 83(CORS)- 47 41 13.20237(N) 122 15 22.62629(W) AD(2002.00) c
DH7235 ELLIP H (08/??/07) -3.588 (m) GP(2002.00) c c
DH7235 NAD 83(CORS)- 47 41 13.20113(N) 122 15 22.62650(W) AD(2002.00) c
DH7235 ELLIP H (12/??/05) -3.641 (m) GP(2002.00) c c
DH7235
DH7235.Superseded values are not recommended for survey control.
DH7235
DH7235.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DH7235.See file dsdata.pdf to determine how the superseded data were derived.
DH7235
DH7235_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DH7235
DH7235 STATION DESCRIPTION
DH7235
DH7235'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DH7235'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DH7235'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DH7235'ACCESSIBLE AT THE WORLDWIDE WEB.
DH7235'https://geodesy.noaa.gov/CORS/data.shtml
DH7235'https://geodesy.noaa.gov/CORS
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