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 14:31:21 EST
DF3996 ***********************************************************************
DF3996 CORS - This is a GPS Continuously Operating Reference Station.
DF3996 DESIGNATION - PORTSMOUTH 3 CORS ARP
DF3996 CORS_ID - POR3
DF3996 PID - DF3996
DF3996 STATE/COUNTY- NH/ROCKINGHAM
DF3996 COUNTRY - US
DF3996 USGS QUAD - KITTERY (2018)
DF3996
DF3996 *CURRENT SURVEY CONTROL
DF3996 ______________________________________________________________________
DF3996* NAD 83(2011) POSITION- 43 04 15.41522(N) 070 42 35.46101(W) ADJUSTED
DF3996* NAD 83(2011) ELLIP HT- -13.065 (meters) (06/??/19) ADJUSTED
DF3996* NAD 83(2011) EPOCH - 2010.00
DF3996 ______________________________________________________________________
DF3996 GEOID HEIGHT - -26.582 (meters) GEOID18
DF3996 NAD 83(2011) X - 1,541,609.598 (meters) COMP
DF3996 NAD 83(2011) Y - -4,404,573.335 (meters) COMP
DF3996 NAD 83(2011) Z - 4,333,253.987 (meters) COMP
DF3996
DF3996.Formal positional accuracy estimates are not available for this CORS
DF3996.because its coordinates were determined in part using modeled
DF3996.velocities. Approximate one-sigma accuracies for latitude, longitude,
DF3996.and ellipsoid height can be obtained from the short-term time series.
DF3996.Additional information regarding modeled velocities is available on
DF3996.the CORS Coordinates for MYCS2 web page:
DF3996.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DF3996
DF3996.The coordinates were established by GPS observations
DF3996.and adjusted by the National Geodetic Survey in June 2019.
DF3996
DF3996.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DF3996.been affixed to the stable North American Tectonic Plate.
DF3996
DF3996.The coordinates are valid at the epoch date displayed above
DF3996.which is a decimal equivalence of Year/Month/Day.
DF3996
DF3996.Due to the release of the International GNSS Service (IGS) 2014
DF3996.realization of the International Terrestrial Reference Frame of 2014
DF3996.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DF3996.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DF3996.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DF3996.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DF3996.currently published epoch of 2010.00.
DF3996
DF3996.Additional information on MYCS2 is available at
DF3996.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DF3996
DF3996.Significant digits in the geoid height do not necessarily reflect accuracy.
DF3996.GEOID18 height accuracy estimate available here.
DF3996
DF3996.The PID for the CORS L1 Phase Center is DF3997.
DF3996
DF3996.Click photographs - Photos may exist for this station.
DF3996
DF3996.The XYZ, and position/ellipsoidal ht. are equivalent.
DF3996
DF3996.The ellipsoidal height was determined by GPS observations
DF3996.and is referenced to NAD 83.
DF3996
DF3996. The following values were computed from the NAD 83(2011) position.
DF3996
DF3996; North East Units Scale Factor Converg.
DF3996;SPC NH - 63,868.124 377,927.559 MT 1.00004134 +0 39 12.4
DF3996;SPC NH - 209,540.67 1,239,917.33 sFT 1.00004134 +0 39 12.4
DF3996;UTM 19 - 4,770,112.293 360,791.955 MT 0.99983840 -1 10 04.3
DF3996
DF3996! - Elev Factor x Scale Factor = Combined Factor
DF3996!SPC NH - 1.00000205 x 1.00004134 = 1.00004339
DF3996!UTM 19 - 1.00000205 x 0.99983840 = 0.99984045
DF3996
DF3996_U.S. NATIONAL GRID SPATIAL ADDRESS: 19TCH6079170112(NAD 83)
DF3996
DF3996 SUPERSEDED SURVEY CONTROL
DF3996
DF3996 NAD 83(2011)- 43 04 15.41532(N) 070 42 35.46105(W) AD(2010.00) c
DF3996 ELLIP H (08/??/11) -13.059 (m) GP(2010.00) c c
DF3996 NAD 83(CORS)- 43 04 15.41558(N) 070 42 35.46161(W) AD(2002.00) c
DF3996 ELLIP H (02/??/03) -13.056 (m) GP(2002.00) c c
DF3996
DF3996.Superseded values are not recommended for survey control.
DF3996
DF3996.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DF3996.See file dsdata.pdf to determine how the superseded data were derived.
DF3996
DF3996_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DF3996
DF3996 STATION DESCRIPTION
DF3996
DF3996'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
DF3996'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DF3996'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DF3996'ACCESSIBLE AT THE WORLDWIDE WEB.
DF3996'https://geodesy.noaa.gov/CORS/data.shtml
DF3996'https://geodesy.noaa.gov/CORS
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