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 03:27:18 EST
DR7923 ***********************************************************************
DR7923 CORS - This is a GPS Continuously Operating Reference Station.
DR7923 DESIGNATION - CTBK BROOKFIELD CORS ARP
DR7923 CORS_ID - CTBK
DR7923 PID - DR7923
DR7923 STATE/COUNTY- CT/FAIRFIELD
DR7923 COUNTRY - US
DR7923 USGS QUAD - DANBURY (2018)
DR7923
DR7923 *CURRENT SURVEY CONTROL
DR7923 ______________________________________________________________________
DR7923* NAD 83(2011) POSITION- 41 29 52.46403(N) 073 25 06.47516(W) ADJUSTED
DR7923* NAD 83(2011) ELLIP HT- 50.418 (meters) (04/??/22) ADJUSTED
DR7923* NAD 83(2011) EPOCH - 2010.00
DR7923 ______________________________________________________________________
DR7923 GEOID HEIGHT - -29.816 (meters) GEOID18
DR7923 NAD 83(2011) X - 1,365,304.027 (meters) COMP
DR7923 NAD 83(2011) Y - -4,585,218.248 (meters) COMP
DR7923 NAD 83(2011) Z - 4,204,031.536 (meters) COMP
DR7923
DR7923.Formal positional accuracy estimates are not available for this CORS
DR7923.because its coordinates were determined in part using modeled
DR7923.velocities. Approximate one-sigma accuracies for latitude, longitude,
DR7923.and ellipsoid height can be obtained from the short-term time series.
DR7923.Additional information regarding modeled velocities is available on
DR7923.the CORS Coordinates for MYCS2 web page:
DR7923.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DR7923
DR7923.The coordinates were established by GPS observations
DR7923.and adjusted by the National Geodetic Survey in April 2022.
DR7923
DR7923.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DR7923.been affixed to the stable North American Tectonic Plate.
DR7923
DR7923.The coordinates are valid at the epoch date displayed above
DR7923.which is a decimal equivalence of Year/Month/Day.
DR7923
DR7923.Due to the release of the International GNSS Service (IGS) 2014
DR7923.realization of the International Terrestrial Reference Frame of 2014
DR7923.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DR7923.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DR7923.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DR7923.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DR7923.currently published epoch of 2010.00.
DR7923
DR7923.Additional information on MYCS2 is available at
DR7923.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DR7923
DR7923.Significant digits in the geoid height do not necessarily reflect accuracy.
DR7923.GEOID18 height accuracy estimate available here.
DR7923
DR7923.The PID for the CORS L1 Phase Center is DR7924.
DR7923
DR7923.Click photographs - Photos may exist for this station.
DR7923
DR7923.The XYZ, and position/ellipsoidal ht. are equivalent.
DR7923
DR7923.The ellipsoidal height was determined by GPS observations
DR7923.and is referenced to NAD 83.
DR7923
DR7923. The following values were computed from the NAD 83(2011) position.
DR7923
DR7923; North East Units Scale Factor Converg.
DR7923;SPC CT - 226,422.468 248,986.006 MT 0.99998333 -0 26 35.6
DR7923;SPC CT - 742,854.38 816,881.59 sFT 0.99998333 -0 26 35.6
DR7923;UTM 18 - 4,595,239.148 632,005.594 MT 0.99981445 +1 02 53.0
DR7923
DR7923! - Elev Factor x Scale Factor = Combined Factor
DR7923!SPC CT - 0.99999209 x 0.99998333 = 0.99997542
DR7923!UTM 18 - 0.99999209 x 0.99981445 = 0.99980654
DR7923
DR7923_U.S. NATIONAL GRID SPATIAL ADDRESS: 18TXL3200595239(NAD 83)
DR7923
DR7923 SUPERSEDED SURVEY CONTROL
DR7923
DR7923 NAD 83(2011)- 41 29 52.46405(N) 073 25 06.47517(W) AD(2010.00) c
DR7923 ELLIP H (04/??/22) 50.452 (m) GP(2010.00) c c
DR7923
DR7923.Superseded values are not recommended for survey control.
DR7923
DR7923.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DR7923.See file dsdata.pdf to determine how the superseded data were derived.
DR7923
DR7923_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
DR7923
DR7923 STATION DESCRIPTION
DR7923
DR7923'DESCRIBED BY NATIONAL GEODETIC SURVEY 2022
DR7923'STATION IS PART OF THE NOAA CORS NETWORK. LATEST INFORMATION INCLUDING
DR7923'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
DR7923'ACCESSIBLE AT THE WORLDWIDE WEB.
DR7923'https://geodesy.noaa.gov/CORS/data.shtml
DR7923'https://geodesy.noaa.gov/CORS
1 National Geodetic Survey, Retrieval Date = FEBRUARY 18, 2025 03:27:18 EST
DR7925 ***********************************************************************
DR7925 CORS - This is a GPS Continuously Operating Reference Station.
DR7925 DESIGNATION - CTBK BROOKFIELD GRP
DR7925 CORS_ID - CTBK
DR7925 PID - DR7925
DR7925 STATE/COUNTY- CT/FAIRFIELD
DR7925 COUNTRY - US
DR7925 USGS QUAD - DANBURY (2018)
DR7925
DR7925 *CURRENT SURVEY CONTROL
DR7925 ______________________________________________________________________
DR7925* NAD 83(2011) POSITION- 41 29 52.46403(N) 073 25 06.47516(W) ADJUSTED
DR7925* NAD 83(2011) ELLIP HT- 50.383 (meters) (04/??/22) ADJUSTED
DR7925* NAD 83(2011) EPOCH - 2010.00
DR7925 ______________________________________________________________________
DR7925 GEOID HEIGHT - -29.816 (meters) GEOID18
DR7925 NAD 83(2011) X - 1,365,304.019 (meters) COMP
DR7925 NAD 83(2011) Y - -4,585,218.223 (meters) COMP
DR7925 NAD 83(2011) Z - 4,204,031.513 (meters) COMP
DR7925 LAPLACE CORR - 3.74 (seconds) DEFLEC18
DR7925
DR7925.Formal positional accuracy estimates are not available for this CORS
DR7925.because its coordinates were determined in part using modeled
DR7925.velocities. Approximate one-sigma accuracies for latitude, longitude,
DR7925.and ellipsoid height can be obtained from the short-term time series.
DR7925.Additional information regarding modeled velocities is available on
DR7925.the CORS Coordinates for MYCS2 web page:
DR7925.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
DR7925
DR7925.The horizontal coordinates were established by GPS observations
DR7925.and adjusted by the National Geodetic Survey in April 2022.
DR7925
DR7925.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
DR7925.been affixed to the stable North American Tectonic Plate.
DR7925
DR7925.The horizontal coordinates are valid at the epoch date displayed above
DR7925.which is a decimal equivalence of Year/Month/Day.
DR7925
DR7925.Due to the release of the International GNSS Service (IGS) 2014
DR7925.realization of the International Terrestrial Reference Frame of 2014
DR7925.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
DR7925.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
DR7925.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
DR7925.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
DR7925.currently published epoch of 2010.00.
DR7925
DR7925.Additional information on MYCS2 is available at
DR7925.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
DR7925
DR7925.Significant digits in the geoid height do not necessarily reflect accuracy.
DR7925.GEOID18 height accuracy estimate available here.
DR7925
DR7925.Click photographs - Photos may exist for this station.
DR7925
DR7925.The XYZ, and position/ellipsoidal ht. are equivalent.
DR7925
DR7925.The Laplace correction was computed from DEFLEC18 derived deflections.
DR7925
DR7925.The ellipsoidal height was determined by GPS observations
DR7925.and is referenced to NAD 83.
DR7925
DR7925. The following values were computed from the NAD 83(2011) position.
DR7925
DR7925; North East Units Scale Factor Converg.
DR7925;SPC CT - 226,422.468 248,986.006 MT 0.99998333 -0 26 35.6
DR7925;SPC CT - 742,854.38 816,881.59 sFT 0.99998333 -0 26 35.6
DR7925;UTM 18 - 4,595,239.148 632,005.594 MT 0.99981445 +1 02 53.0
DR7925
DR7925! - Elev Factor x Scale Factor = Combined Factor
DR7925!SPC CT - 0.99999210 x 0.99998333 = 0.99997543
DR7925!UTM 18 - 0.99999210 x 0.99981445 = 0.99980655
DR7925
DR7925_U.S. NATIONAL GRID SPATIAL ADDRESS: 18TXL3200595239(NAD 83)
DR7925
DR7925 SUPERSEDED SURVEY CONTROL
DR7925
DR7925 NAD 83(2011)- 41 29 52.46405(N) 073 25 06.47517(W) AD(2010.00) A
DR7925 ELLIP H (04/??/22) 50.417 (m) GP(2010.00) 4 1
DR7925
DR7925.Superseded values are not recommended for survey control.
DR7925
DR7925.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DR7925.See file dsdata.pdf to determine how the superseded data were derived.
DR7925
DR7925_STAMPING: UNKNOWN
DR7925
DR7925 STATION DESCRIPTION
DR7925
DR7925'THIS MONUMENT IS ASSOCIATED WITH CORS SITE 'CTBK'
DR7925'LATEST INFORMATION INCLUDING POSITIONS AND VELOCITIES
DR7925'ARE AVAILABLE IN THE COORDINATE AND LOG FILES ACCESSIBLE
DR7925'BY ANONYMOUS FTP OR THE WORLDWIDE WEB.
DR7925' https://geodesy.noaa.gov/corsdata/coord/coord_14
DR7925' https://geodesy.noaa.gov/corsdata/station_log
DR7925' https://geodesy.noaa.gov/CORS
DR7925'RECOVERED AS DESCRIBED.
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