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 23:48:10 EST
AH9962 ***********************************************************************
AH9962 HT_MOD - This is a Height Modernization Survey Station.
AH9962 CORS - This is a GPS Continuously Operating Reference Station.
AH9962 DESIGNATION - LLNL SITE S300 CORS ARP
AH9962 CORS_ID - S300
AH9962 PID - AH9962
AH9962 STATE/COUNTY- CA/ALAMEDA
AH9962 COUNTRY - US
AH9962 USGS QUAD - MIDWAY (2018)
AH9962
AH9962 *CURRENT SURVEY CONTROL
AH9962 ______________________________________________________________________
AH9962* NAD 83(2011) POSITION- 37 39 59.41358(N) 121 33 29.71361(W) ADJUSTED
AH9962* NAD 83(2011) ELLIP HT- 496.318 (meters) (06/??/19) ADJUSTED
AH9962* NAD 83(2011) EPOCH - 2010.00
AH9962* NAVD 88 ORTHO HEIGHT - 528.11 (meters) 1732.6 (feet) GPS OBS
AH9962 ______________________________________________________________________
AH9962 NAVD 88 orthometric height was determined with an earlier geoid model
AH9962 GEOID HEIGHT - -31.765 (meters) GEOID18
AH9962 NAD 83(2011) X - -2,645,886.548 (meters) COMP
AH9962 NAD 83(2011) Y - -4,307,856.975 (meters) COMP
AH9962 NAD 83(2011) Z - 3,876,512.201 (meters) COMP
AH9962
AH9962 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
AH9962 Standards:
AH9962 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
AH9962 Horiz Ellip SD_N SD_E SD_h (unitless)
AH9962 -------------------------------------------------------------------
AH9962 NETWORK 0.14 0.44 0.07 0.05 0.22 0.05511300
AH9962 -------------------------------------------------------------------
AH9962
AH9962.The coordinates were established by GPS observations
AH9962.and adjusted by the National Geodetic Survey in June 2019.
AH9962
AH9962.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AH9962.been affixed to the stable North American Tectonic Plate.
AH9962
AH9962.The coordinates are valid at the epoch date displayed above
AH9962.which is a decimal equivalence of Year/Month/Day.
AH9962
AH9962.Due to the release of the International GNSS Service (IGS) 2014
AH9962.realization of the International Terrestrial Reference Frame of 2014
AH9962.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
AH9962.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
AH9962.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
AH9962.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
AH9962.currently published epoch of 2010.00.
AH9962
AH9962.Additional information on MYCS2 is available at
AH9962.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
AH9962
AH9962.The orthometric height was determined by GPS observations and a
AH9962.high-resolution geoid model using precise GPS observation and
AH9962.processing techniques.
AH9962
AH9962.Significant digits in the geoid height do not necessarily reflect accuracy.
AH9962.GEOID18 height accuracy estimate available here.
AH9962
AH9962.The PID for the CORS L1 Phase Center is DK6705.
AH9962
AH9962.Click photographs - Photos may exist for this station.
AH9962
AH9962.The XYZ, and position/ellipsoidal ht. are equivalent.
AH9962
AH9962.The ellipsoidal height was determined by GPS observations
AH9962.and is referenced to NAD 83.
AH9962
AH9962. The following values were computed from the NAD 83(2011) position.
AH9962
AH9962; North East Units Scale Factor Converg.
AH9962;SPC CA 3 - 629,987.299 1,906,640.120 MT 0.99993026 -0 38 52.4
AH9962;SPC CA 3 - 2,066,883.33 6,255,368.46 sFT 0.99993026 -0 38 52.4
AH9962;UTM 10 - 4,169,791.686 627,155.981 MT 0.99979915 +0 52 52.0
AH9962
AH9962! - Elev Factor x Scale Factor = Combined Factor
AH9962!SPC CA 3 - 0.99992212 x 0.99993026 = 0.99985239
AH9962!UTM 10 - 0.99992212 x 0.99979915 = 0.99972129
AH9962
AH9962_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SFG2715569791(NAD 83)
AH9962
AH9962 SUPERSEDED SURVEY CONTROL
AH9962
AH9962 ELLIP H (06/27/12) 496.334 (m) GP(2010.00) 0 0
AH9962 NAD 83(2011)- 37 39 59.41399(N) 121 33 29.71319(W) AD(2010.00) c
AH9962 NAD 83(2011)- 37 39 59.41363(N) 121 33 29.71362(W) AD(2010.00) c
AH9962 ELLIP H (08/??/11) 496.315 (m) GP(2010.00) c c
AH9962 ELLIP H (02/10/07) 496.316 (m) GP(2007.00)
AH9962 NAD 83(2007)- 37 39 59.41153(N) 121 33 29.71224(W) AD(2007.00) c
AH9962 NAD 83(CORS)- 37 39 59.41078(N) 121 33 29.71041(W) AD(2002.00) c
AH9962 ELLIP H (03/??/02) 496.316 (m) GP(2002.00) c c
AH9962 NAD 83(CORS)- 37 39 59.40920(N) 121 33 29.70847(W) AD(1997.00) c
AH9962 ELLIP H (06/??/99) 496.341 (m) GP(1997.00) c c
AH9962 NAVD 88 (04/03/01) 528.1 (m) UNKNOWN model used GPS OBS
AH9962 NAVD 88 (10/31/00) 528.10 (m) GEOID99 model used GPS OBS
AH9962
AH9962.Superseded values are not recommended for survey control.
AH9962
AH9962.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AH9962.See file dsdata.pdf to determine how the superseded data were derived.
AH9962
AH9962_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AH9962
AH9962 STATION DESCRIPTION
AH9962
AH9962'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
AH9962'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
AH9962'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
AH9962'ACCESSIBLE AT THE WORLDWIDE WEB.
AH9962'https://geodesy.noaa.gov/CORS/data.shtml
AH9962'https://geodesy.noaa.gov/CORS
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