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 06:41:38 EST
AF9494 ***********************************************************************
AF9494 HT_MOD - This is a Height Modernization Survey Station.
AF9494 CORS - This is a GPS Continuously Operating Reference Station.
AF9494 DESIGNATION - CHATHAM 1 CORS ARP
AF9494 CORS_ID - CHT1
AF9494 PID - AF9494
AF9494 STATE/COUNTY- MA/BARNSTABLE
AF9494 COUNTRY - US
AF9494 USGS QUAD - CHATHAM (2018)
AF9494
AF9494 *CURRENT SURVEY CONTROL
AF9494 ______________________________________________________________________
AF9494* NAD 83(2011) POSITION- 41 40 16.29770(N) 069 57 00.16116(W) ADJUSTED
AF9494* NAD 83(2011) ELLIP HT- -9.398 (meters) (06/??/19) ADJUSTED
AF9494* NAD 83(2011) EPOCH - 2010.00
AF9494* NAVD 88 ORTHO HEIGHT - 18.71 (meters) 61.4 (feet) GPS OBS
AF9494 ______________________________________________________________________
AF9494 NAVD 88 orthometric height was determined with an earlier geoid model
AF9494 GEOID HEIGHT - -28.092 (meters) GEOID18
AF9494 NAD 83(2011) X - 1,635,806.693 (meters) COMP
AF9494 NAD 83(2011) Y - -4,482,178.748 (meters) COMP
AF9494 NAD 83(2011) Z - 4,218,387.572 (meters) COMP
AF9494
AF9494 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
AF9494 Standards:
AF9494 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
AF9494 Horiz Ellip SD_N SD_E SD_h (unitless)
AF9494 -------------------------------------------------------------------
AF9494 NETWORK 0.23 0.67 0.10 0.09 0.34 -0.11060000
AF9494 -------------------------------------------------------------------
AF9494
AF9494.The coordinates were established by GPS observations
AF9494.and adjusted by the National Geodetic Survey in June 2019.
AF9494
AF9494.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AF9494.been affixed to the stable North American Tectonic Plate.
AF9494
AF9494.The coordinates are valid at the epoch date displayed above
AF9494.which is a decimal equivalence of Year/Month/Day.
AF9494
AF9494.Due to the release of the International GNSS Service (IGS) 2014
AF9494.realization of the International Terrestrial Reference Frame of 2014
AF9494.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
AF9494.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
AF9494.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
AF9494.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
AF9494.currently published epoch of 2010.00.
AF9494
AF9494.Additional information on MYCS2 is available at
AF9494.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
AF9494
AF9494.The orthometric height was determined by GPS observations and a
AF9494.high-resolution geoid model using precise GPS observation and
AF9494.processing techniques.
AF9494
AF9494.Significant digits in the geoid height do not necessarily reflect accuracy.
AF9494.GEOID18 height accuracy estimate available here.
AF9494
AF9494.The PID for the CORS L1 Phase Center is AJ7865.
AF9494
AF9494.Click photographs - Photos may exist for this station.
AF9494
AF9494.The XYZ, and position/ellipsoidal ht. are equivalent.
AF9494
AF9494.The ellipsoidal height was determined by GPS observations
AF9494.and is referenced to NAD 83.
AF9494
AF9494. The following values were computed from the NAD 83(2011) position.
AF9494
AF9494; North East Units Scale Factor Converg.
AF9494;SPC MA M - 825,721.965 329,067.722 MT 1.00000696 +1 02 28.1
AF9494;SPC MA M - 2,709,056.15 1,079,616.35 sFT 1.00000696 +1 02 28.1
AF9494;UTM 19 - 4,613,706.243 420,915.380 MT 0.99967696 -0 37 54.0
AF9494
AF9494! - Elev Factor x Scale Factor = Combined Factor
AF9494!SPC MA M - 1.00000147 x 1.00000696 = 1.00000843
AF9494!UTM 19 - 1.00000147 x 0.99967696 = 0.99967843
AF9494
AF9494_U.S. NATIONAL GRID SPATIAL ADDRESS: 19TDG2091513706(NAD 83)
AF9494
AF9494 SUPERSEDED SURVEY CONTROL
AF9494
AF9494 ELLIP H (06/27/12) -9.382 (m) GP(2010.00) 0 0
AF9494 NAD 83(2011)- 41 40 16.29787(N) 069 57 00.16130(W) AD(2010.00) c
AF9494 NAD 83(2011)- 41 40 16.29772(N) 069 57 00.16120(W) AD(2010.00) c
AF9494 ELLIP H (08/??/11) -9.382 (m) GP(2010.00) c c
AF9494 ELLIP H (02/10/07) -9.361 (m) GP(2002.00)
AF9494 NAD 83(2007)- 41 40 16.29815(N) 069 57 00.16265(W) AD(2002.00) c
AF9494 NAD 83(CORS)- 41 40 16.29815(N) 069 57 00.16265(W) AD(2002.00) c
AF9494 ELLIP H (03/??/02) -9.361 (m) GP(2002.00) c c
AF9494 NAD 83(CORS)- 41 40 16.29859(N) 069 57 00.16225(W) AD(1997.00) c
AF9494 ELLIP H (04/??/96) -9.367 (m) GP(1997.00) c c
AF9494 NAD 83(CORS)- 41 40 16.29859(N) 069 57 00.16225(W) AD(1996.00) c
AF9494 ELLIP H (04/??/96) -9.367 (m) GP(1996.00) c c
AF9494 NAVD 88 (01/12/00) 18.70 (m) UNKNOWN model used GPS OBS
AF9494
AF9494.Superseded values are not recommended for survey control.
AF9494
AF9494.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AF9494.See file dsdata.pdf to determine how the superseded data were derived.
AF9494
AF9494_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AF9494
AF9494 STATION DESCRIPTION
AF9494
AF9494'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
AF9494'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
AF9494'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
AF9494'ACCESSIBLE AT THE WORLDWIDE WEB.
AF9494'https://geodesy.noaa.gov/CORS/data.shtml
AF9494'https://geodesy.noaa.gov/CORS
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