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 06:50:33 EST
 AI3289 ***********************************************************************
 AI3289  CORS        -  This is a GPS Continuously Operating Reference Station.
 AI3289  DESIGNATION -  VIRGINIA INSTITUT CORS ARP
 AI3289  CORS_ID     -  VIMS
 AI3289  PID         -  AI3289
 AI3289  STATE/COUNTY-  VA/ACCOMACK
 AI3289  COUNTRY     -  US
 AI3289  USGS QUAD   -  WACHAPREAGUE (2019)
 AI3289
 AI3289                         *CURRENT SURVEY CONTROL
 AI3289  ______________________________________________________________________
 AI3289* NAD 83(2011) POSITION- 37 36 30.04531(N) 075 41 13.20653(W)   ADJUSTED
 AI3289* NAD 83(2011) ELLIP HT-   -27.782 (meters)        (06/??/19)   ADJUSTED
 AI3289* NAD 83(2011) EPOCH   -  2010.00
 AI3289  ______________________________________________________________________
 AI3289  GEOID HEIGHT    -        -36.689 (meters)                     GEOID18
 AI3289  NAD 83(2011) X  -  1,250,693.282 (meters)                     COMP
 AI3289  NAD 83(2011) Y  - -4,902,018.633 (meters)                     COMP
 AI3289  NAD 83(2011) Z  -  3,871,080.373 (meters)                     COMP
 AI3289
 AI3289  Network accuracy estimates per FGDC Geospatial Positioning Accuracy
 AI3289  Standards:
 AI3289         FGDC (95% conf, cm)     Standard deviation (cm)     CorrNE
 AI3289            Horiz  Ellip           SD_N   SD_E   SD_h      (unitless)
 AI3289  -------------------------------------------------------------------
 AI3289  NETWORK    0.11   0.35           0.05   0.04   0.18     -0.07573000
 AI3289  -------------------------------------------------------------------
 AI3289
 AI3289.The coordinates were established by GPS observations
 AI3289.and adjusted by the National Geodetic Survey in June 2019.
 AI3289
 AI3289.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has 
 AI3289.been affixed to the stable North American Tectonic Plate. 
 AI3289
 AI3289.The coordinates are valid at the epoch date displayed above
 AI3289.which is a decimal equivalence of Year/Month/Day.
 AI3289
 AI3289.Due to the release of the International GNSS Service (IGS) 2014
 AI3289.realization of the International Terrestrial Reference Frame of 2014
 AI3289.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
 AI3289.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
 AI3289.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
 AI3289.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
 AI3289.currently published epoch of 2010.00.
 AI3289
 AI3289.Additional information on MYCS2 is available at
 AI3289.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
 AI3289
 AI3289.Significant digits in the geoid height do not necessarily reflect accuracy.
 AI3289.GEOID18 height accuracy estimate available here.
 AI3289
 AI3289.The PID for the CORS L1 Phase Center is DN4593.
 AI3289
 AI3289.Click photographs - Photos may exist for this station.
 AI3289
 AI3289.The XYZ, and position/ellipsoidal ht. are equivalent.
 AI3289
 AI3289.The ellipsoidal height was determined by GPS observations
 AI3289.and is referenced to NAD 83.
 AI3289
 AI3289. The following values were computed from the NAD 83(2011) position.
 AI3289
 AI3289;                    North         East     Units Scale Factor Converg.
 AI3289;SPC VA S     - 1,145,195.883 3,748,332.641   MT  0.99995421   +1 42 26.2
 AI3289;SPC VA S     - 3,757,196.83 12,297,654.67   sFT  0.99995421   +1 42 26.2
 AI3289;UTM  18      - 4,162,583.489   439,363.332   MT  0.99964529   -0 25 09.3
 AI3289
 AI3289!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AI3289!SPC VA S     -   1.00000436  x   0.99995421  =   0.99995857
 AI3289!UTM  18      -   1.00000436  x   0.99964529  =   0.99964965
 AI3289
 AI3289_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVG3936362583(NAD 83)
 AI3289
 AI3289                          SUPERSEDED SURVEY CONTROL
 AI3289
 AI3289  ELLIP H (06/27/12)  -27.758  (m)                       GP(2010.00) 0 0
 AI3289  NAD 83(2011)-  37 36 30.04527(N)    075 41 13.20638(W) AD(2010.00) c
 AI3289  NAD 83(2011)-  37 36 30.04535(N)    075 41 13.20652(W) AD(2010.00) c
 AI3289  ELLIP H (08/??/11)  -27.789  (m)                       GP(2010.00) c c
 AI3289  ELLIP H (02/10/07)  -27.739  (m)                       GP(2002.00)    
 AI3289  NAD 83(2007)-  37 36 30.04548(N)    075 41 13.20712(W) AD(2002.00) c
 AI3289  NAD 83(CORS)-  37 36 30.04548(N)    075 41 13.20712(W) AD(2002.00) c
 AI3289  ELLIP H (03/??/02)  -27.739  (m)                       GP(2002.00) c c
 AI3289  NAD 83(CORS)-  37 36 30.04563(N)    075 41 13.20742(W) AD(1997.00) c
 AI3289  ELLIP H (07/??/00)  -27.738  (m)                       GP(1997.00) c c
 AI3289  NAD 83(CORS)-  37 36 30.04497(N)    075 41 13.20766(W) AD(1997.00) c
 AI3289  ELLIP H (01/??/00)  -27.624  (m)                       GP(1997.00) c c
 AI3289
 AI3289.Superseded values are not recommended for survey control.
 AI3289
 AI3289.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 AI3289.See file dsdata.pdf to determine how the superseded data were derived.
 AI3289
 AI3289_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
 AI3289
 AI3289                          STATION DESCRIPTION
 AI3289
 AI3289'DESCRIBED BY NATIONAL GEODETIC SURVEY 2019
 AI3289'STATION IS PART OF THE NOAA CORS NETWORK.  LATEST INFORMATION INCLUDING
 AI3289'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
 AI3289'ACCESSIBLE AT THE WORLDWIDE WEB.
 AI3289'https://geodesy.noaa.gov/CORS/data.shtml
 AI3289'https://geodesy.noaa.gov/CORS




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