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 17, 2025 23:08:02 EST
AI1408 ***********************************************************************
AI1408 CORS - This is a GPS Continuously Operating Reference Station.
AI1408 DESIGNATION - PORTSMOUTH 4 CORS ARP
AI1408 CORS_ID - POR4
AI1408 PID - AI1408
AI1408 STATE/COUNTY- NH/ROCKINGHAM
AI1408 COUNTRY - US
AI1408 USGS QUAD - KITTERY (2018)
AI1408
AI1408 *CURRENT SURVEY CONTROL
AI1408 ______________________________________________________________________
AI1408* NAD 83(2011) POSITION- 43 04 15.63372(N) 070 42 34.29027(W) ADJUSTED
AI1408* NAD 83(2011) ELLIP HT- -16.329 (meters) (06/??/19) ADJUSTED
AI1408* NAD 83(2011) EPOCH - 2010.00
AI1408 ______________________________________________________________________
AI1408 GEOID HEIGHT - -26.581 (meters) GEOID18
AI1408 NAD 83(2011) X - 1,541,632.289 (meters) COMP
AI1408 NAD 83(2011) Y - -4,404,557.988 (meters) COMP
AI1408 NAD 83(2011) Z - 4,333,256.683 (meters) COMP
AI1408
AI1408 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
AI1408 Standards:
AI1408 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
AI1408 Horiz Ellip SD_N SD_E SD_h (unitless)
AI1408 -------------------------------------------------------------------
AI1408 NETWORK 0.16 0.34 0.07 0.06 0.18 -0.25318300
AI1408 -------------------------------------------------------------------
AI1408
AI1408.The coordinates were established by GPS observations
AI1408.and adjusted by the National Geodetic Survey in June 2019.
AI1408
AI1408.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AI1408.been affixed to the stable North American Tectonic Plate.
AI1408
AI1408.The coordinates are valid at the epoch date displayed above
AI1408.which is a decimal equivalence of Year/Month/Day.
AI1408
AI1408.Due to the release of the International GNSS Service (IGS) 2014
AI1408.realization of the International Terrestrial Reference Frame of 2014
AI1408.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
AI1408.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
AI1408.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
AI1408.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
AI1408.currently published epoch of 2010.00.
AI1408
AI1408.Additional information on MYCS2 is available at
AI1408.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
AI1408
AI1408.Significant digits in the geoid height do not necessarily reflect accuracy.
AI1408.GEOID18 height accuracy estimate available here.
AI1408
AI1408.The PID for the CORS L1 Phase Center is AJ7964.
AI1408
AI1408.Click photographs - Photos may exist for this station.
AI1408
AI1408.The XYZ, and position/ellipsoidal ht. are equivalent.
AI1408
AI1408.The ellipsoidal height was determined by GPS observations
AI1408.and is referenced to NAD 83.
AI1408
AI1408. The following values were computed from the NAD 83(2011) position.
AI1408
AI1408; North East Units Scale Factor Converg.
AI1408;SPC NH - 63,875.168 377,953.969 MT 1.00004139 +0 39 13.2
AI1408;SPC NH - 209,563.78 1,240,003.98 sFT 1.00004139 +0 39 13.2
AI1408;UTM 19 - 4,770,118.493 360,818.570 MT 0.99983831 -1 10 03.5
AI1408
AI1408! - Elev Factor x Scale Factor = Combined Factor
AI1408!SPC NH - 1.00000256 x 1.00004139 = 1.00004395
AI1408!UTM 19 - 1.00000256 x 0.99983831 = 0.99984087
AI1408
AI1408_U.S. NATIONAL GRID SPATIAL ADDRESS: 19TCH6081870118(NAD 83)
AI1408
AI1408 SUPERSEDED SURVEY CONTROL
AI1408
AI1408 ELLIP H (06/27/12) -16.339 (m) GP(2010.00) 0 0
AI1408 NAD 83(2011)- 43 04 15.63372(N) 070 42 34.29027(W) AD(2010.00) c
AI1408 NAD 83(2011)- 43 04 15.63368(N) 070 42 34.29020(W) AD(2010.00) c
AI1408 ELLIP H (08/??/11) -16.329 (m) GP(2010.00) c c
AI1408 ELLIP H (02/10/07) -16.324 (m) GP(2002.00)
AI1408 NAD 83(2007)- 43 04 15.63411(N) 070 42 34.29086(W) AD(2002.00) c
AI1408 NAD 83(CORS)- 43 04 15.63411(N) 070 42 34.29086(W) AD(2002.00) c
AI1408 ELLIP H (03/??/02) -16.324 (m) GP(2002.00) c c
AI1408 NAD 83(CORS)- 43 04 15.63437(N) 070 42 34.29147(W) AD(1997.00) c
AI1408 ELLIP H (07/??/00) -16.329 (m) GP(1997.00) c c
AI1408 NAD 83(CORS)- 43 04 15.63368(N) 070 42 34.29164(W) AD(1997.00) c
AI1408 ELLIP H (08/??/99) -16.320 (m) GP(1997.00) c c
AI1408
AI1408.Superseded values are not recommended for survey control.
AI1408
AI1408.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AI1408.See file dsdata.pdf to determine how the superseded data were derived.
AI1408
AI1408_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AI1408
AI1408 STATION DESCRIPTION
AI1408
AI1408'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
AI1408'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
AI1408'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
AI1408'ACCESSIBLE AT THE WORLDWIDE WEB.
AI1408'https://geodesy.noaa.gov/CORS/data.shtml
AI1408'https://geodesy.noaa.gov/CORS
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