














                                  SURVEY CONTROL DATA
                                
                             STATE=DO
                             [MAY 10, 2024 21:09:0]
                              Version = 8.12.5.18
1    National Geodetic Survey, Retrieval Date = MAY 10, 2024 21:09:07 EDT
 AB9270 ***********************************************************************
 AB9270  DESIGNATION -  FORT YOUNG
 AB9270  PID         -  AB9270
 AB9270  STATE/COUNTY-  DO/PARISH OF DOMINICA
 AB9270  COUNTRY     -  DOMINICA
 AB9270  USGS QUAD   -  
 AB9270
 AB9270                         *CURRENT SURVEY CONTROL
 AB9270  ______________________________________________________________________
 AB9270* NAD 83(2011) POSITION- 15 17 45.03846(N) 061 23 14.07991(W)   NO CHECK
 AB9270* NAD 83(2011) ELLIP HT-   -34.372 (meters)        (06/27/12)   NO CHECK
 AB9270* NAD 83(2011) EPOCH   -  2010.00
 AB9270* LMSL    ORTHO HEIGHT -     3.    (meters)       10.    (feet) GPS OBS
 AB9270  ______________________________________________________________________
 AB9270  LMSL orthometric height was determined with geoid model       EGM96
 AB9270  GEOID HEIGHT    -        -40.753 (meters)                     EGM96
 AB9270  GEOID HEIGHT    -        -39.903 (meters)                     EGM08
 AB9270  NAD 83(2011) X  -  2,946,881.828 (meters)                     COMP
 AB9270  NAD 83(2011) Y  - -5,402,101.740 (meters)                     COMP
 AB9270  NAD 83(2011) Z  -  1,671,688.816 (meters)                     COMP
 AB9270  LAPLACE CORR    -          1.55  (seconds)                    DCAR97
 AB9270
 AB9270  Network accuracy estimates per FGDC Geospatial Positioning Accuracy
 AB9270  Standards:
 AB9270         FGDC (95% conf, cm)     Standard deviation (cm)     CorrNE
 AB9270            Horiz  Ellip           SD_N   SD_E   SD_h      (unitless)
 AB9270  -------------------------------------------------------------------
 AB9270  NETWORK    8.70   9.37           1.67   4.35   4.78      0.02146327
 AB9270  -------------------------------------------------------------------
 AB9270  Click here for local accuracies and other accuracy information.
 AB9270
 AB9270.The horizontal coordinates were established by GPS observations
 AB9270.and adjusted by the National Geodetic Survey in June 2012.
 AB9270
 AB9270.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has 
 AB9270.been affixed to the stable North American tectonic plate. See 
 AB9270.www.ngs.noaa.gov/web/surveys/NA2011 for more information. 
 AB9270
 AB9270.The horizontal coordinates are valid at the epoch date displayed above
 AB9270.which is a decimal equivalence of Year/Month/Day.
 AB9270
 AB9270.No horizontal observational check was made to the station.
 AB9270
 AB9270.The orthometric height was determined by GPS observations and a
 AB9270.high-resolution geoid model.
 AB9270
 AB9270.No vertical observational check was made to the station.
 AB9270
 AB9270.Significant digits in the geoid height do not necessarily reflect accuracy.
 AB9270
 AB9270.Click photographs - Photos may exist for this station.
 AB9270
 AB9270.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AB9270
 AB9270.The Laplace correction was computed from DCAR97 derived deflections.
 AB9270
 AB9270.The ellipsoidal height was determined by GPS observations
 AB9270.and is referenced to NAD 83.
 AB9270
 AB9270. The following values were computed from the NAD 83(2011) position.
 AB9270
 AB9270;                    North         East     Units Scale Factor Converg.
 AB9270;UTM  20      - 1,691,691.113   673,162.404   MT  0.99997085   +0 25 32.0
 AB9270
 AB9270!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AB9270!UTM  20      -   1.00000540  x   0.99997085  =   0.99997625
 AB9270
 AB9270_U.S. NATIONAL GRID SPATIAL ADDRESS: 20PPB7316291691(NAD 83)
 AB9270
 AB9270                          SUPERSEDED SURVEY CONTROL
 AB9270
 AB9270  NAD 83(2007)-  15 17 45.03744(N)    061 23 14.08487(W) AD(2002.00) 0
 AB9270  ELLIP H (02/10/07)  -34.367  (m)                       GP(2002.00)    
 AB9270  NAD 83(1996)-  15 17 45.03643(N)    061 23 14.08820(W) AD(       ) 1
 AB9270  ELLIP H (12/09/96)  -34.327  (m)                       GP(       ) 1 1
 AB9270
 AB9270.Superseded values are not recommended for survey control.
 AB9270
 AB9270.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 AB9270.See file dsdata.pdf to determine how the superseded data were derived.
 AB9270
 AB9270_MARKER: DH = HORIZONTAL CONTROL DISK
 AB9270_SETTING: 36 = SET IN A MASSIVE STRUCTURE
 AB9270_SP_SET: SEA WALL
 AB9270_STAMPING: FORT YOUNG 1996
 AB9270_MARK LOGO: NGS
 AB9270_MAGNETIC: N = NO MAGNETIC MATERIAL
 AB9270_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
 AB9270+STABILITY: SURFACE MOTION
 AB9270_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AB9270+SATELLITE: SATELLITE OBSERVATIONS - 1996
 AB9270
 AB9270  HISTORY     - Date     Condition        Report By
 AB9270  HISTORY     - 1996     MONUMENTED       NGS
 AB9270
 AB9270                          STATION DESCRIPTION
 AB9270
 AB9270'DESCRIBED BY NATIONAL GEODETIC SURVEY 1996 (AJL)
 AB9270'THE STATION IS LOCATED 17 MI (27.4 KM) SOUTHWEST FROM MARIGOT, 18 MI
 AB9270'(29.0 KM) SOUTH FROM PORTSMOUTH, IN THE BAYFRONT AREA OF ROSEAU,
 AB9270'DOMINICA.  CONTACT VINCENT ROBINSON, PRINCIPAL LAND /ENGINEERING
 AB9270'SURVEYOR, MINISTRY OF COMMUNICATIONS, WORKS AND HOUSING, ROSEAU,
 AB9270'DOMINICA, PHONE (809) 448-8933, IN ADVANCE OF OPERATIONS TO ARRANGE
 AB9270'FOR LOGISTICS ASSISTANCE.  TO REACH THE STATION FROM THE CENOTAPH
 AB9270'MONUMENT ON THE NORTH SIDE OF FORT YOUNG IN ROSEAU, GO SOUTHWEST ON
 AB9270'BAY STREET FOR 225 FT (68.6 M) TO BAYFRONT AREA, GARRAWAY HOTEL ON THE
 AB9270'RIGHT, AND STATION ON THE LEFT IN THE SOUTHWEST CORNER OF THE BAYFRONT
 AB9270'SEAWALL.  LOCATED 278.7 FT (84.9 M) SOUTHEAST FROM THE CENTER OF A
 AB9270'GATE ON THE SEAWALL TO THE CRUISE SHIP PIER, 43.7 FT (13.3 M)
 AB9270'SOUTHWEST FROM A FIREPLUG, AND 40.5 FT (12.3 M) SOUTH FROM A LIGHT
 AB9270'POLE.
1    National Geodetic Survey, Retrieval Date = MAY 10, 2024 21:09:07 EDT
 DR7379 ***********************************************************************
 DR7379  CORS        -  This is a GPS Continuously Operating Reference Station.
 DR7379  DESIGNATION -  FRANCESVDDOM2012 CORS ARP
 DR7379  CORS_ID     -  CN27
 DR7379  PID         -  DR7379
 DR7379  STATE/COUNTY-  DO/PARISH OF DOMINICA
 DR7379  COUNTRY     -  DOMINICA
 DR7379  USGS QUAD   -  
 DR7379
 DR7379                         *CURRENT SURVEY CONTROL
 DR7379  ______________________________________________________________________
 DR7379* NAD 83       POSITION- 19 40 01.60741(N) 069 56 23.31695(W)   ADJUSTED
 DR7379* NAD 83       ELLIP HT-   -19.312 (meters)        (12/??/22)   ADJUSTED
 DR7379* NAD 83       EPOCH   -  2010.00
 DR7379  ______________________________________________________________________
 DR7379  GEOID HEIGHT    -        -44.067 (meters)                     EGM08
 DR7379  NAD 83       X  -  2,060,896.968 (meters)                     COMP
 DR7379  NAD 83       Y  - -5,643,813.428 (meters)                     COMP
 DR7379  NAD 83       Z  -  2,133,024.964 (meters)                     COMP
 DR7379
 DR7379.Formal positional accuracy estimates are not available for this CORS
 DR7379.because its coordinates were determined in part using modeled
 DR7379.velocities. Approximate one-sigma accuracies for latitude, longitude,
 DR7379.and ellipsoid height can be obtained from the short-term time series.
 DR7379.Additional information regarding modeled velocities is available on
 DR7379.the CORS Coordinates for MYCS2 web page:
 DR7379.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
 DR7379
 DR7379.The coordinates were established by GPS observations
 DR7379.and adjusted by the National Geodetic Survey in December 2022.
 DR7379
 DR7379.The coordinates are valid at the epoch date displayed above
 DR7379.which is a decimal equivalence of Year/Month/Day.
 DR7379
 DR7379.Due to the release of the International GNSS Service (IGS) 2014
 DR7379.realization of the International Terrestrial Reference Frame of 2014
 DR7379.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
 DR7379.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
 DR7379.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
 DR7379.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
 DR7379.currently published epoch of 2010.00.
 DR7379
 DR7379.Additional information on MYCS2 is available at
 DR7379.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
 DR7379
 DR7379.Significant digits in the geoid height do not necessarily reflect accuracy.
 DR7379
 DR7379.The PID for the CORS L1 Phase Center is DR7380.
 DR7379
 DR7379.Click photographs - Photos may exist for this station.
 DR7379
 DR7379.The XYZ, and position/ellipsoidal ht. are equivalent.
 DR7379
 DR7379.The ellipsoidal height was determined by GPS observations
 DR7379.and is referenced to NAD 83.
 DR7379
 DR7379. The following values were computed from the NAD 83 position.
 DR7379
 DR7379;                    North         East     Units Scale Factor Converg.
 DR7379;UTM  19      - 2,174,916.684   401,482.488   MT  0.99971996   -0 18 58.8
 DR7379
 DR7379!             -  Elev Factor  x  Scale Factor =   Combined Factor
 DR7379!UTM  19      -   1.00000304  x   0.99971996  =   0.99972299
 DR7379
 DR7379_U.S. NATIONAL GRID SPATIAL ADDRESS: 19QDB0148274916(NAD 83)
 DR7379
 DR7379                          SUPERSEDED SURVEY CONTROL
 DR7379
 DR7379  NAD 83(1986)-  19 40 01.60752(N)    069 56 23.31649(W) AD(2010.00) c
 DR7379
 DR7379.Superseded values are not recommended for survey control.
 DR7379
 DR7379.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 DR7379.See file dsdata.pdf to determine how the superseded data were derived.
 DR7379
 DR7379_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
 DR7379
 DR7379                          STATION DESCRIPTION
 DR7379
 DR7379'DESCRIBED BY NATIONAL GEODETIC SURVEY 2022
 DR7379'STATION IS PART OF THE NOAA CORS NETWORK.  LATEST INFORMATION INCLUDING
 DR7379'POSITIONS AND VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES
 DR7379'ACCESSIBLE AT THE WORLDWIDE WEB.
 DR7379'https://geodesy.noaa.gov/CORS/data.shtml
 DR7379'https://geodesy.noaa.gov/CORS
1    National Geodetic Survey, Retrieval Date = MAY 10, 2024 21:09:07 EDT
 DR7381 ***********************************************************************
 DR7381  CORS        -  This is a GPS Continuously Operating Reference Station.
 DR7381  DESIGNATION -  FRANCESVDDOM2012 CORS GRP
 DR7381  CORS_ID     -  CN27
 DR7381  PID         -  DR7381
 DR7381  STATE/COUNTY-  DO/PARISH OF DOMINICA
 DR7381  COUNTRY     -  DOMINICA
 DR7381  USGS QUAD   -  
 DR7381
 DR7381                         *CURRENT SURVEY CONTROL
 DR7381  ______________________________________________________________________
 DR7381* NAD 83       POSITION- 19 40 01.60741(N) 069 56 23.31695(W)   ADJUSTED
 DR7381* NAD 83       ELLIP HT-   -19.320 (meters)        (12/??/22)   ADJUSTED
 DR7381* NAD 83       EPOCH   -  2010.00
 DR7381  ______________________________________________________________________
 DR7381  GEOID HEIGHT    -        -44.067 (meters)                     EGM08
 DR7381  NAD 83       X  -  2,060,896.965 (meters)                     COMP
 DR7381  NAD 83       Y  - -5,643,813.421 (meters)                     COMP
 DR7381  NAD 83       Z  -  2,133,024.961 (meters)                     COMP
 DR7381  LAPLACE CORR    -         -8.99  (seconds)                    DCAR97
 DR7381
 DR7381.Formal positional accuracy estimates are not available for this CORS
 DR7381.because its coordinates were determined in part using modeled
 DR7381.velocities. Approximate one-sigma accuracies for latitude, longitude,
 DR7381.and ellipsoid height can be obtained from the short-term time series.
 DR7381.Additional information regarding modeled velocities is available on
 DR7381.the CORS Coordinates for MYCS2 web page:
 DR7381.https://www.ngs.noaa.gov/CORS/news/mycs2/mycs2.shtml.
 DR7381
 DR7381.The horizontal coordinates were established by GPS observations
 DR7381.and adjusted by the National Geodetic Survey in December 2022.
 DR7381
 DR7381.The horizontal coordinates are valid at the epoch date displayed above
 DR7381.which is a decimal equivalence of Year/Month/Day.
 DR7381
 DR7381.Due to the release of the International GNSS Service (IGS) 2014
 DR7381.realization of the International Terrestrial Reference Frame of 2014
 DR7381.(ITRF2014), NGS reprocessed all NOAA CORS Network and some IGS stations
 DR7381.using data collected between 1/1/1996 and 1/30/2017. The resulting ITRF2014
 DR7381.epoch 2010.00 coordinates, referred to as Multi-Year CORS Solution 2
 DR7381.(MYCS2), were transformed to NAD 83 (2011/PA11/MA11) maintaining the
 DR7381.currently published epoch of 2010.00.
 DR7381
 DR7381.Additional information on MYCS2 is available at
 DR7381.https://geodesy.noaa.gov/CORS/news/mycs2/mycs2.shtml
 DR7381
 DR7381.Significant digits in the geoid height do not necessarily reflect accuracy.
 DR7381
 DR7381.Click photographs - Photos may exist for this station.
 DR7381
 DR7381.The XYZ, and position/ellipsoidal ht. are equivalent.
 DR7381
 DR7381.The Laplace correction was computed from DCAR97 derived deflections.
 DR7381
 DR7381.The ellipsoidal height was determined by GPS observations
 DR7381.and is referenced to NAD 83.
 DR7381
 DR7381. The following values were computed from the NAD 83 position.
 DR7381
 DR7381;                    North         East     Units Scale Factor Converg.
 DR7381;UTM  19      - 2,174,916.684   401,482.488   MT  0.99971996   -0 18 58.8
 DR7381
 DR7381!             -  Elev Factor  x  Scale Factor =   Combined Factor
 DR7381!UTM  19      -   1.00000304  x   0.99971996  =   0.99972300
 DR7381
 DR7381_U.S. NATIONAL GRID SPATIAL ADDRESS: 19QDB0148274916(NAD 83)
 DR7381
 DR7381                          SUPERSEDED SURVEY CONTROL
 DR7381
 DR7381  NAD 83(1986)-  19 40 01.60752(N)    069 56 23.31649(W) AD(2010.00) A
 DR7381
 DR7381.Superseded values are not recommended for survey control.
 DR7381
 DR7381.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 DR7381.See file dsdata.pdf to determine how the superseded data were derived.
 DR7381
 DR7381_STAMPING: UNKNOWN
 DR7381
 DR7381                          STATION DESCRIPTION
 DR7381
 DR7381'THIS MONUMENT IS ASSOCIATED WITH CORS SITE 'CN27'
 DR7381'LATEST INFORMATION INCLUDING POSITIONS AND VELOCITIES
 DR7381'ARE AVAILABLE IN THE COORDINATE AND LOG FILES ACCESSIBLE
 DR7381'BY ANONYMOUS FTP OR THE WORLDWIDE WEB.
 DR7381'   https://geodesy.noaa.gov/corsdata/coord/coord_14
 DR7381'   https://geodesy.noaa.gov/corsdata/station_log
 DR7381'   https://geodesy.noaa.gov/CORS
 DR7381'RECOVERED AS DESCRIBED.
1    National Geodetic Survey, Retrieval Date = MAY 10, 2024 21:09:07 EDT
 AB9271 ***********************************************************************
 AB9271  DESIGNATION -  TDCF A
 AB9271  PID         -  AB9271
 AB9271  STATE/COUNTY-  DO/PARISH OF DOMINICA
 AB9271  COUNTRY     -  DOMINICA
 AB9271  USGS QUAD   -  
 AB9271
 AB9271                         *CURRENT SURVEY CONTROL
 AB9271  ______________________________________________________________________
 AB9271* NAD 83(2011) POSITION- 15 20 23.22822(N) 061 23 31.33901(W)   NO CHECK
 AB9271* NAD 83(2011) ELLIP HT-   -33.885 (meters)        (06/27/12)   NO CHECK
 AB9271* NAD 83(2011) EPOCH   -  2010.00
 AB9271* LMSL    ORTHO HEIGHT -     4.    (meters)       13.    (feet) GPS OBS
 AB9271  ______________________________________________________________________
 AB9271  LMSL orthometric height was determined with geoid model       EGM96
 AB9271  GEOID HEIGHT    -        -40.824 (meters)                     EGM96
 AB9271  GEOID HEIGHT    -        -39.673 (meters)                     EGM08
 AB9271  NAD 83(2011) X  -  2,945,815.008 (meters)                     COMP
 AB9271  NAD 83(2011) Y  - -5,401,221.064 (meters)                     COMP
 AB9271  NAD 83(2011) Z  -  1,676,378.408 (meters)                     COMP
 AB9271  LAPLACE CORR    -          1.57  (seconds)                    DCAR97
 AB9271
 AB9271  Network accuracy estimates per FGDC Geospatial Positioning Accuracy
 AB9271  Standards:
 AB9271         FGDC (95% conf, cm)     Standard deviation (cm)     CorrNE
 AB9271            Horiz  Ellip           SD_N   SD_E   SD_h      (unitless)
 AB9271  -------------------------------------------------------------------
 AB9271  NETWORK    8.67   8.86           1.52   4.35   4.52      0.03481576
 AB9271  -------------------------------------------------------------------
 AB9271  Click here for local accuracies and other accuracy information.
 AB9271
 AB9271.The horizontal coordinates were established by GPS observations
 AB9271.and adjusted by the National Geodetic Survey in June 2012.
 AB9271
 AB9271.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has 
 AB9271.been affixed to the stable North American tectonic plate. See 
 AB9271.www.ngs.noaa.gov/web/surveys/NA2011 for more information. 
 AB9271
 AB9271.The horizontal coordinates are valid at the epoch date displayed above
 AB9271.which is a decimal equivalence of Year/Month/Day.
 AB9271
 AB9271.No horizontal observational check was made to the station.
 AB9271
 AB9271.The orthometric height was determined by GPS observations and a
 AB9271.high-resolution geoid model.
 AB9271
 AB9271.No vertical observational check was made to the station.
 AB9271
 AB9271.Significant digits in the geoid height do not necessarily reflect accuracy.
 AB9271
 AB9271.Click photographs - Photos may exist for this station.
 AB9271
 AB9271.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AB9271
 AB9271.The Laplace correction was computed from DCAR97 derived deflections.
 AB9271
 AB9271.The ellipsoidal height was determined by GPS observations
 AB9271.and is referenced to NAD 83.
 AB9271
 AB9271. The following values were computed from the NAD 83(2011) position.
 AB9271
 AB9271;                    North         East     Units Scale Factor Converg.
 AB9271;UTM  20      - 1,696,549.226   672,611.477   MT  0.99996850   +0 25 31.7
 AB9271
 AB9271!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AB9271!UTM  20      -   1.00000533  x   0.99996850  =   0.99997383
 AB9271
 AB9271_U.S. NATIONAL GRID SPATIAL ADDRESS: 20PPB7261196549(NAD 83)
 AB9271
 AB9271                          SUPERSEDED SURVEY CONTROL
 AB9271
 AB9271  NAD 83(2007)-  15 20 23.22720(N)    061 23 31.34398(W) AD(2002.00) 0
 AB9271  ELLIP H (02/10/07)  -33.880  (m)                       GP(2002.00)    
 AB9271  NAD 83(1996)-  15 20 23.22618(N)    061 23 31.34731(W) AD(       ) 1
 AB9271  ELLIP H (12/09/96)  -33.840  (m)                       GP(       ) 1 1
 AB9271
 AB9271.Superseded values are not recommended for survey control.
 AB9271
 AB9271.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 AB9271.See file dsdata.pdf to determine how the superseded data were derived.
 AB9271
 AB9271_MARKER: DH = HORIZONTAL CONTROL DISK
 AB9271_SETTING: 32 = SET IN A RETAINING WALL OR CONCRETE LEDGE
 AB9271_SP_SET: CULVERT
 AB9271_STAMPING: TDCF A 1996
 AB9271_MARK LOGO: NGS
 AB9271_MAGNETIC: N = NO MAGNETIC MATERIAL
 AB9271_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
 AB9271+STABILITY: SURFACE MOTION
 AB9271_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AB9271+SATELLITE: SATELLITE OBSERVATIONS - 1996
 AB9271
 AB9271  HISTORY     - Date     Condition        Report By
 AB9271  HISTORY     - 1996     MONUMENTED       NGS
 AB9271
 AB9271                          STATION DESCRIPTION
 AB9271
 AB9271'DESCRIBED BY NATIONAL GEODETIC SURVEY 1996 (AJL)
 AB9271'THE STATION IS LOCATED AT CANEFIELD AIRPORT ON THE WEST COAST OF
 AB9271'DOMINICA, 2 MI (3.2 KM) NORTH FROM ROSEAU, 15 MI (24.1 KM) SOUTHEAST
 AB9271'FROM PORTSMOUTH.  CALL AIRPORT MANAGER DON CORRIETTE, CANEFIELD
 AB9271'AIRPORT, ROSEAU, DOMINICA, PHONE (809) 449-1990, FAX (809) 409-2020,
 AB9271'AND VINCENT ROBINSON, PRINCIPAL LAND /ENGINEERING SURVEYOR, MINISTRY
 AB9271'OF COMMUNICATIONS, WORKS AND HOUSING, ROSEAU, DOMINICA, PHONE (809)
 AB9271'448-8933, IN ADVANCE OF OPERATIONS TO ARRANGE FOR AIRPORT ACCESS AND
 AB9271'LOGISTICS ASSISTANCE.  TO REACH THE STATION FROM THE SECURITY GATE AT
 AB9271'THE NORTH END OF CANEFIELD AIRPORT TERMINAL BUILDING, GO WEST ACROSS
 AB9271'APRON FOR 120 FT (36.6 M) TO DITCH AT EDGE OF APRON.  TURN RIGHT AND
 AB9271'GO NORTH ALONG DITCH FOR 85 FT (25.9 M) TO STATION IN TOP CENTER OF 9
 AB9271'INCH X 6.6 FT (2.0 M) X 3.4 FT (1.0 M) HIGH CONCRETE CULVERT. LOCATED
 AB9271'168.2 FT (51.3 M) NORTHWEST FROM CENTER OF SECURITY GATE AT NORTH END
 AB9271'OF TERMINAL, 60.8 FT (18.5 M) SOUTH FROM CENTERLINE OF NORTHERN
 AB9271'TAXIWAY, AND 49.9 FT (15.2 M) EAST FROM EAST EDGE OF SINGLE RUNWAY.
1    National Geodetic Survey, Retrieval Date = MAY 10, 2024 21:09:07 EDT
 AB9269 ***********************************************************************
 AB9269  DESIGNATION -  TDPD A
 AB9269  PID         -  AB9269
 AB9269  STATE/COUNTY-  DO/PARISH OF DOMINICA
 AB9269  COUNTRY     -  DOMINICA
 AB9269  USGS QUAD   -  
 AB9269
 AB9269                         *CURRENT SURVEY CONTROL
 AB9269  ______________________________________________________________________
 AB9269* NAD 83(2011) POSITION- 15 32 47.71055(N) 061 18 00.25067(W)   ADJUSTED
 AB9269* NAD 83(2011) ELLIP HT-   -26.980 (meters)        (06/27/12)   ADJUSTED
 AB9269* NAD 83(2011) EPOCH   -  2010.00
 AB9269* LMSL    ORTHO HEIGHT -    11.0   (meters)       36.    (feet) GPS OBS
 AB9269  ______________________________________________________________________
 AB9269  LMSL orthometric height was determined with geoid model       EGM96
 AB9269  GEOID HEIGHT    -        -40.895 (meters)                     EGM96
 AB9269  GEOID HEIGHT    -        -39.737 (meters)                     EGM08
 AB9269  NAD 83(2011) X  -  2,951,558.075 (meters)                     COMP
 AB9269  NAD 83(2011) Y  - -5,391,146.677 (meters)                     COMP
 AB9269  NAD 83(2011) Z  -  1,698,437.056 (meters)                     COMP
 AB9269  LAPLACE CORR    -         -1.51  (seconds)                    DCAR97
 AB9269
 AB9269  Network accuracy estimates per FGDC Geospatial Positioning Accuracy
 AB9269  Standards:
 AB9269         FGDC (95% conf, cm)     Standard deviation (cm)     CorrNE
 AB9269            Horiz  Ellip           SD_N   SD_E   SD_h      (unitless)
 AB9269  -------------------------------------------------------------------
 AB9269  NETWORK    8.37   5.37           0.52   4.26   2.74     -0.17831038
 AB9269  -------------------------------------------------------------------
 AB9269  Click here for local accuracies and other accuracy information.
 AB9269
 AB9269.The horizontal coordinates were established by GPS observations
 AB9269.and adjusted by the National Geodetic Survey in June 2012.
 AB9269
 AB9269.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has 
 AB9269.been affixed to the stable North American tectonic plate. See 
 AB9269.www.ngs.noaa.gov/web/surveys/NA2011 for more information. 
 AB9269
 AB9269.The horizontal coordinates are valid at the epoch date displayed above
 AB9269.which is a decimal equivalence of Year/Month/Day.
 AB9269
 AB9269.The orthometric height was determined by GPS observations and a
 AB9269.high-resolution geoid model.
 AB9269
 AB9269.Significant digits in the geoid height do not necessarily reflect accuracy.
 AB9269
 AB9269.Click photographs - Photos may exist for this station.
 AB9269
 AB9269.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AB9269
 AB9269.The Laplace correction was computed from DCAR97 derived deflections.
 AB9269
 AB9269.The ellipsoidal height was determined by GPS observations
 AB9269.and is referenced to NAD 83.
 AB9269
 AB9269. The following values were computed from the NAD 83(2011) position.
 AB9269
 AB9269;                    North         East     Units Scale Factor Converg.
 AB9269;UTM  20      - 1,719,507.329   682,305.769   MT  1.00001104   +0 27 20.7
 AB9269
 AB9269!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AB9269!UTM  20      -   1.00000424  x   1.00001104  =   1.00001528
 AB9269
 AB9269:                Primary Azimuth Mark                     Grid Az
 AB9269:UTM  20      -  TDPD C                                   069 27 27.0
 AB9269
 AB9269_U.S. NATIONAL GRID SPATIAL ADDRESS: 20PPC8230519507(NAD 83)
 AB9269
 AB9269|---------------------------------------------------------------------|
 AB9269| PID    Reference Object                     Distance      Geod. Az  |
 AB9269|                                                           dddmmss.s |
 AB9269| AB9674 TDPD C                              APPROX. 0.7 KM 0695447.7 |
 AB9269| AB9673 TDPD B                              APPROX. 0.7 KM 2503952.7 |
 AB9269|---------------------------------------------------------------------|
 AB9269
 AB9269                          SUPERSEDED SURVEY CONTROL
 AB9269
 AB9269  NAD 83(2007)-  15 32 47.70953(N)    061 18 00.25564(W) AD(2002.00) 0
 AB9269  ELLIP H (02/10/07)  -26.975  (m)                       GP(2002.00)    
 AB9269  NAD 83(1996)-  15 32 47.70851(N)    061 18 00.25897(W) AD(       ) A
 AB9269  ELLIP H (12/09/96)  -26.936  (m)                       GP(       ) 1 1
 AB9269
 AB9269.Superseded values are not recommended for survey control.
 AB9269
 AB9269.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 AB9269.See file dsdata.pdf to determine how the superseded data were derived.
 AB9269
 AB9269_MARKER: DH = HORIZONTAL CONTROL DISK
 AB9269_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
 AB9269_STAMPING: TDPD A 1996
 AB9269_MARK LOGO: NGS
 AB9269_MAGNETIC: N = NO MAGNETIC MATERIAL
 AB9269_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
 AB9269+STABILITY: SURFACE MOTION
 AB9269_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AB9269+SATELLITE: SATELLITE OBSERVATIONS - 1996
 AB9269
 AB9269  HISTORY     - Date     Condition        Report By
 AB9269  HISTORY     - 1996     MONUMENTED       NGS
 AB9269
 AB9269                          STATION DESCRIPTION
 AB9269
 AB9269'DESCRIBED BY NATIONAL GEODETIC SURVEY 1996 (AJL)
 AB9269'THE STATION IS LOCATED AT MELVILLE HALL AIRPORT ON THE NORTHEAST COAST
 AB9269'OF DOMINICA, 17 MI (27.4 KM) NORTHEAST FROM ROSEAU, 1.2 MI (1.9 KM)
 AB9269'NORTHWEST FROM MARIGOT.  CONTACT WELCH RICHARDS, MINISTER OF
 AB9269'COMMUNICATIONS, WORKS AND HOUSING, MELVILLE HALL AIRPORT, ROSEAU,
 AB9269'DOMINICA, PHONE (809) 445-7101, FAX (809) 445-7405, AND VINCENT
 AB9269'ROBINSON, PRINCIPAL LAND /ENGINEERING SURVEYOR, MINISTRY OF
 AB9269'COMMUNICATIONS, WORKS AND HOUSING, ROSEAU, DOMINICA, PHONE (809)
 AB9269'448-8933, IN ADVANCE OF OPERATIONS TO ARRANGE FOR AIRPORT ACCESS AND
 AB9269'LOGISTICS ASSISTANCE.  TO REACH THE STATION FROM THE MELVILLE HALL
 AB9269'CONTROL TOWER, GO NORTH ACROSS APRON FOR 170 FT (51.8 M) TO EDGE OF
 AB9269'APRON.  CONTINUE NORTH ACROSS GRASS ISLAND FOR 150 FT (45.7 M) TO
 AB9269'STATION.  LOCATED 174.5 FT (53.2 M) WEST-NORTHWEST FROM CENTER OF
 AB9269'STONE CULVERT, 124.5 FT (37.9 M) EAST-NORTHEAST FROM NORTHEAST EDGE OF
 AB9269'TAXIWAY AT HOLD BAR, 83.0 FT (25.3 M) SOUTH FROM EDGE OF RUNWAY, 50 FT
 AB9269'(15.2 M) NORTH-NORTHWEST FROM CENTERLINE OF DRAINAGE DITCH, AND IS
 AB9269'PROTECTED BY THREE PVC WITNESS POSTS PROJECTING 1 FT (0.3 M) ABOVE
 AB9269'GROUND IN A TRIANGULAR PATTERN SURROUNDING THE MONUMENT.  THIS STATION
 AB9269'IS THE PACS STATION AT MELVILLE HALL AIRPORT.
1    National Geodetic Survey, Retrieval Date = MAY 10, 2024 21:09:07 EDT
 AB9673 ***********************************************************************
 AB9673  DESIGNATION -  TDPD B
 AB9673  PID         -  AB9673
 AB9673  STATE/COUNTY-  DO/PARISH OF DOMINICA
 AB9673  COUNTRY     -  DOMINICA
 AB9673  USGS QUAD   -  
 AB9673
 AB9673                         *CURRENT SURVEY CONTROL
 AB9673  ______________________________________________________________________
 AB9673* NAD 83(1996) POSITION- 15 32 39.98660(N) 061 18 22.95597(W)   ADJUSTED
 AB9673* NAD 83(1996) ELLIP HT-   -16.358 (meters)        (01/06/97)   ADJUSTED
 AB9673* LMSL    ORTHO HEIGHT -    21.6   (meters)       71.    (feet) GPS OBS
 AB9673  ______________________________________________________________________
 AB9673  LMSL orthometric height was determined with geoid model       EGM96
 AB9673  GEOID HEIGHT    -        -40.891 (meters)                     EGM96
 AB9673  GEOID HEIGHT    -        -39.692 (meters)                     EGM08
 AB9673  NAD 83(1996) X  -  2,951,000.071 (meters)                     COMP
 AB9673  NAD 83(1996) Y  - -5,391,536.337 (meters)                     COMP
 AB9673  NAD 83(1996) Z  -  1,698,211.176 (meters)                     COMP
 AB9673  LAPLACE CORR    -         -1.34  (seconds)                    DCAR97
 AB9673  HORZ ORDER      -  FIRST
 AB9673  ELLP ORDER      -  FIFTH     CLASS I
 AB9673
 AB9673.The horizontal coordinates were established by GPS observations
 AB9673.and adjusted by the National Geodetic Survey in January 1997.
 AB9673
 AB9673.The orthometric height was determined by GPS observations and a
 AB9673.high-resolution geoid model.
 AB9673
 AB9673.Significant digits in the geoid height do not necessarily reflect accuracy.
 AB9673
 AB9673.Click photographs - Photos may exist for this station.
 AB9673
 AB9673.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AB9673
 AB9673.The Laplace correction was computed from DCAR97 derived deflections.
 AB9673
 AB9673.The ellipsoidal height was determined by GPS observations
 AB9673.and is referenced to NAD 83.
 AB9673
 AB9673. The following values were computed from the NAD 83(1996) position.
 AB9673
 AB9673;                    North         East     Units Scale Factor Converg.
 AB9673;UTM  20      - 1,719,264.550   681,631.095   MT  1.00000801   +0 27 14.4
 AB9673
 AB9673!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AB9673!UTM  20      -   1.00000257  x   1.00000801  =   1.00001058
 AB9673
 AB9673:                Primary Azimuth Mark                     Grid Az
 AB9673:UTM  20      -  TDPD A                                   070 12 32.2
 AB9673
 AB9673_U.S. NATIONAL GRID SPATIAL ADDRESS: 20PPC8163119264(NAD 83)
 AB9673
 AB9673|---------------------------------------------------------------------|
 AB9673| PID    Reference Object                     Distance      Geod. Az  |
 AB9673|                                                           dddmmss.s |
 AB9673| AB9269 TDPD A                              APPROX. 0.7 KM 0703946.6 |
 AB9673|---------------------------------------------------------------------|
 AB9673
 AB9673                          SUPERSEDED SURVEY CONTROL
 AB9673
 AB9673.No superseded survey control is available for this station.
 AB9673
 AB9673_MARKER: DH = HORIZONTAL CONTROL DISK
 AB9673_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
 AB9673_STAMPING: TDPD B 1996
 AB9673_MARK LOGO: NGS
 AB9673_MAGNETIC: N = NO MAGNETIC MATERIAL
 AB9673_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
 AB9673+STABILITY: SURFACE MOTION
 AB9673_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AB9673+SATELLITE: SATELLITE OBSERVATIONS - 1996
 AB9673
 AB9673  HISTORY     - Date     Condition        Report By
 AB9673  HISTORY     - 1996     MONUMENTED       NGS
 AB9673
 AB9673                          STATION DESCRIPTION
 AB9673
 AB9673'DESCRIBED BY NATIONAL GEODETIC SURVEY 1996 (AJL)
 AB9673'THE STATION IS LOCATED AT MELVILLE HALL AIRPORT ON THE NORTHEAST COAST
 AB9673'OF DOMINICA, 17 MI (27.4 KM) NORTHEAST FROM ROSEAU, 1.2 MI (1.9 KM)
 AB9673'NORTHWEST FROM MARIGOT.  CONTACT WELCH RICHARDS, MINISTER OF
 AB9673'COMMUNICATIONS, WORKS AND HOUSING, MELVILLE HALL AIRPORT, ROSEAU,
 AB9673'DOMINICA, PHONE (809) 445-7101, FAX (809) 445-7405 IN ADVANCE OF
 AB9673'OPERATIONS FOR AIRPORT ACCESS.  CONTACT VINCENT ROBINSON, PRINCIPAL
 AB9673'LAND/ENGINEERING SURVEYOR, MINISTRY OF COMMUNICATIONS, WORKS AND
 AB9673'HOUSING, ROSEAU, DOMINICA, PHONE (809) 448-8933 FOR DOMINICA SURVEY
 AB9673'RECORDS.  TO REACH THE STATION FROM THE MELVILLE HALL CONTROL TOWER,
 AB9673'GO NORTH ACROSS APRON AND GRASS ISLAND FOR 400 FT (121.9 M) TO RUNWAY
 AB9673'09-27.  TURN LEFT AND GO WEST ALONG RUNWAY FOR 0.44 MI (0.71 KM) TO
 AB9673'END OF RUNWAY AND STATION ON LEFT.  LOCATED 230.4 FT (70.2 M)
 AB9673'SOUTHEAST FROM CENTER OF GATE (NUMBER 3) AT WEST END OF AIRPORT, 93.0
 AB9673'FT (28.3 M) NORTH FROM BOUNDARY FENCE, 52.7 FT (16.1 M) SOUTH FROM
 AB9673'SOUTHWEST CORNER OF RUNWAY 09, AND IS SURROUNDED BY THREE PVC PIPES
 AB9673'PROJECTING 1 FT (0.3 M) ABOVE GROUND IN A TRIANGULAR PATTERN AROUND
 AB9673'THE MONUMENT.  THIS STATION IS A SACS STATION AT MELVILLE HALL
 AB9673'AIRPORT.
1    National Geodetic Survey, Retrieval Date = MAY 10, 2024 21:09:07 EDT
 AB9674 ***********************************************************************
 AB9674  DESIGNATION -  TDPD C
 AB9674  PID         -  AB9674
 AB9674  STATE/COUNTY-  DO/PARISH OF DOMINICA
 AB9674  COUNTRY     -  DOMINICA
 AB9674  USGS QUAD   -  
 AB9674
 AB9674                         *CURRENT SURVEY CONTROL
 AB9674  ______________________________________________________________________
 AB9674* NAD 83(1996) POSITION- 15 32 55.94477(N) 061 17 37.02243(W)   ADJUSTED
 AB9674* NAD 83(1996) ELLIP HT-   -34.694 (meters)        (01/06/97)   ADJUSTED
 AB9674* LMSL    ORTHO HEIGHT -     3.2   (meters)       10.    (feet) GPS OBS
 AB9674  ______________________________________________________________________
 AB9674  LMSL orthometric height was determined with geoid model       EGM96
 AB9674  GEOID HEIGHT    -        -40.901 (meters)                     EGM96
 AB9674  GEOID HEIGHT    -        -39.787 (meters)                     EGM08
 AB9674  NAD 83(1996) X  -  2,952,129.019 (meters)                     COMP
 AB9674  NAD 83(1996) Y  - -5,390,748.236 (meters)                     COMP
 AB9674  NAD 83(1996) Z  -  1,698,678.823 (meters)                     COMP
 AB9674  LAPLACE CORR    -         -1.68  (seconds)                    DCAR97
 AB9674  HORZ ORDER      -  FIRST
 AB9674  ELLP ORDER      -  FIFTH     CLASS I
 AB9674
 AB9674.The horizontal coordinates were established by GPS observations
 AB9674.and adjusted by the National Geodetic Survey in January 1997.
 AB9674
 AB9674.The orthometric height was determined by GPS observations and a
 AB9674.high-resolution geoid model.
 AB9674
 AB9674.Significant digits in the geoid height do not necessarily reflect accuracy.
 AB9674
 AB9674.Click photographs - Photos may exist for this station.
 AB9674
 AB9674.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AB9674
 AB9674.The Laplace correction was computed from DCAR97 derived deflections.
 AB9674
 AB9674.The ellipsoidal height was determined by GPS observations
 AB9674.and is referenced to NAD 83.
 AB9674
 AB9674. The following values were computed from the NAD 83(1996) position.
 AB9674
 AB9674;                    North         East     Units Scale Factor Converg.
 AB9674;UTM  20      - 1,719,765.938   682,995.888   MT  1.00001416   +0 27 27.1
 AB9674
 AB9674!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AB9674!UTM  20      -   1.00000546  x   1.00001416  =   1.00001962
 AB9674
 AB9674:                Primary Azimuth Mark                     Grid Az
 AB9674:UTM  20      -  TDPD A                                   249 27 26.8
 AB9674
 AB9674_U.S. NATIONAL GRID SPATIAL ADDRESS: 20PPC8299519765(NAD 83)
 AB9674
 AB9674|---------------------------------------------------------------------|
 AB9674| PID    Reference Object                     Distance      Geod. Az  |
 AB9674|                                                           dddmmss.s |
 AB9674| AB9269 TDPD A                              APPROX. 0.7 KM 2495453.9 |
 AB9674|---------------------------------------------------------------------|
 AB9674
 AB9674                          SUPERSEDED SURVEY CONTROL
 AB9674
 AB9674.No superseded survey control is available for this station.
 AB9674
 AB9674_MARKER: DH = HORIZONTAL CONTROL DISK
 AB9674_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
 AB9674_STAMPING: TDPD C 1996
 AB9674_MARK LOGO: NGS
 AB9674_MAGNETIC: N = NO MAGNETIC MATERIAL
 AB9674_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
 AB9674+STABILITY: SURFACE MOTION
 AB9674_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AB9674+SATELLITE: SATELLITE OBSERVATIONS - 1996
 AB9674
 AB9674  HISTORY     - Date     Condition        Report By
 AB9674  HISTORY     - 1996     MONUMENTED       NGS
 AB9674
 AB9674                          STATION DESCRIPTION
 AB9674
 AB9674'DESCRIBED BY NATIONAL GEODETIC SURVEY 1996 (AJL)
 AB9674'THE STATION IS LOCATED AT MELVILLE HALL AIRPORT ON THE NORTHEAST COAST
 AB9674'OF DOMINICA, 17 MI (27.4 KM) NORTHEAST FROM ROSEAU, 1.2 MI (1.9 KM)
 AB9674'NORTHWEST FROM MARIGOT.  CONTACT WELCH RICHARDS, MINISTER OF
 AB9674'COMMUNICATIONS, WORKS AND HOUSING, MELVILLE HALL AIRPORT, ROSEAU,
 AB9674'DOMINICA, PHONE (809) 445-7101, FAX (809) 445-7405 IN ADVANCE OF
 AB9674'OPERATIONS FOR AIRPORT ACCESS.  CONTACT VINCENT ROBINSON, PRINCIPAL
 AB9674'LAND/ENGINEERING SURVEYOR, MINISTRY OF COMMUNICATIONS, WORKS AND
 AB9674'HOUSING, ROSEAU, DOMINICA, PHONE (809) 448-8933 FOR DOMINICA SURVEY
 AB9674'RECORDS.  TO REACH THE STATION FROM THE MELVILLE HALL CONTROL TOWER,
 AB9674'GO NORTH ACROSS APRON AND GRASS ISLAND FOR 400 FT (121.9 M) TO RUNWAY
 AB9674'09-27.  TURN RIGHT AND GO EAST ALONG RUNWAY FOR 0.44 MI (0.71 KM) TO
 AB9674'END OF RUNWAY AND STATION ON RIGHT.  LOCATED 129.7 FT (39.5 M)
 AB9674'NORTHEAST FROM WINDSOCK, 81.7 FT (24.9 M) SOUTH FROM SOUTHEAST CORNER
 AB9674'OF RUNWAY 27, 35.9 FT (10.9 M) WEST FROM BOUNDARY FENCE, AND IS
 AB9674'SURROUNDED BY THREE PVC PIPES PROJECTING 1 FT (0.3 M) ABOVE GROUND IN
 AB9674'A TRIANGULAR PATTERN AROUND THE MONUMENT.  THIS STATION IS A SACS
 AB9674'STATION AT MELVILLE HALL AIRPORT.

 *** retrieval complete.
