














                                  SURVEY CONTROL DATA
                                
                             STATE=GY
                             [MAY 10, 2024 21:08:2]
                              Version = 8.12.5.18
1    National Geodetic Survey, Retrieval Date = MAY 10, 2024 21:08:22 EDT
 AB9687 ***********************************************************************
 AB9687  DESIGNATION -  20 Y 7
 AB9687  PID         -  AB9687
 AB9687  STATE/COUNTY-  GY/REGION OF GUYANA
 AB9687  COUNTRY     -  GUYANA
 AB9687  USGS QUAD   -  
 AB9687
 AB9687                         *CURRENT SURVEY CONTROL
 AB9687  ______________________________________________________________________
 AB9687* NAD 83(1996) POSITION- 06 30 11.61785(N) 058 15 04.63622(W)   ADJUSTED
 AB9687* NAD 83(1996) ELLIP HT-    -0.431 (meters)        (01/02/97)   ADJUSTED
 AB9687* LMSL    ORTHO HEIGHT -    25.2   (meters)       83.    (feet) GPS OBS
 AB9687  ______________________________________________________________________
 AB9687  LMSL orthometric height was determined with geoid model       EGM96
 AB9687  GEOID HEIGHT    -        -28.504 (meters)                     EGM96
 AB9687  GEOID HEIGHT    -        -28.630 (meters)                     EGM08
 AB9687  NAD 83(1996) X  -  3,334,690.372 (meters)                     COMP
 AB9687  NAD 83(1996) Y  - -5,389,070.291 (meters)                     COMP
 AB9687  NAD 83(1996) Z  -    717,577.403 (meters)                     COMP
 AB9687  HORZ ORDER      -  FIRST
 AB9687  ELLP ORDER      -  FIFTH     CLASS I
 AB9687
 AB9687.The horizontal coordinates were established by GPS observations
 AB9687.and adjusted by the National Geodetic Survey in January 1997.
 AB9687
 AB9687.The orthometric height was determined by GPS observations and a
 AB9687.high-resolution geoid model.
 AB9687
 AB9687.Significant digits in the geoid height do not necessarily reflect accuracy.
 AB9687
 AB9687.Click photographs - Photos may exist for this station.
 AB9687
 AB9687.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AB9687
 AB9687.The ellipsoidal height was determined by GPS observations
 AB9687.and is referenced to NAD 83.
 AB9687
 AB9687. The following values were computed from the NAD 83(1996) position.
 AB9687
 AB9687;                    North         East     Units Scale Factor Converg.
 AB9687;UTM  21      -   719,004.051   361,642.187   MT  0.99983693   -0 08 30.3
 AB9687
 AB9687!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AB9687!UTM  21      -   1.00000007  x   0.99983693  =   0.99983700
 AB9687
 AB9687_U.S. NATIONAL GRID SPATIAL ADDRESS: 21NUH6164219004(NAD 83)
 AB9687
 AB9687                          SUPERSEDED SURVEY CONTROL
 AB9687
 AB9687.No superseded survey control is available for this station.
 AB9687
 AB9687_MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION
 AB9687_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
 AB9687_STAMPING: 20.Y.7 D.O.S. 1968
 AB9687_MAGNETIC: N = NO MAGNETIC MATERIAL
 AB9687_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
 AB9687+STABILITY: SURFACE MOTION
 AB9687_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AB9687+SATELLITE: SATELLITE OBSERVATIONS - 1996
 AB9687
 AB9687  HISTORY     - Date     Condition        Report By
 AB9687  HISTORY     - 1968     MONUMENTED       GYANA
 AB9687  HISTORY     - 1996     GOOD             NGS
 AB9687
 AB9687                          STATION DESCRIPTION
 AB9687
 AB9687'DESCRIBED BY NATIONAL GEODETIC SURVEY 1996
 AB9687'THE STATION IS LOCATED 37 KM (23.00 MI) SOUTH-SOUTHWEST FROM
 AB9687'GEORGETOWN AT TIMEHRI INTERNATIONAL AIRPORT.  CONTACT ANTHONY
 AB9687'A.MEKDECI, DIRECTOR OF CIVIL AVIATION, WIGHTS LANE, KINGSTON DISTRICT,
 AB9687'GEORGETOWN, GUYANA, PHONE (592-2) 71219, FAX (592-2) 56800, IN ADVANCE
 AB9687'OF OPERATIONS TO ARRANGE FOR ACCESS TO STATION ON AIRFIELD.  TO REACH
 AB9687'THE STATION FROM THE RAMP, GO EAST ACROSS APRON TO TAXIWAY B.  TURN
 AB9687'RIGHT AND GO SOUTHEAST ON TAXIWAY B FOR 90 FT (27.4 M) TO TAXIWAY C
 AB9687'AND STATION ON THE RIGHT IN THE EAST CORNER OF A GRASS ISLAND.  THE
 AB9687'STATION IS A GENERIC 2 INCH BRASS DISK FLUSH IN THE CENTER OF A 13
 AB9687'INCH SQUARE CONCRETE MONUMENT RECESSED 2 INCHES BELOW GROUND AND
 AB9687'ADJACENT TO A TAXIWAY LIGHT FOUNDATION.  LOCATED 104.6 FT (31.9 M)
 AB9687'NORTHWEST FROM THE CENTERLINE INTERSECTION OF TAXIWAYS B AND C, 92.2
 AB9687'FT (28.1 M) SOUTH FROM SOUTHWEST END OF HOLD BAR AT EAST CORNER OF
 AB9687'APRON, 70.5 FT (21.5 M) NORTHEAST FROM NORTHWEST END OF HOLD BAR ON
 AB9687'TAXIWAY C, AND 1.6 FT (0.5 M) WEST-NORTHWEST FROM TAXIWAY LIGHT
 AB9687'(NUMBER 49.) THIS IS A SACS STATION AT TIMEHRI INTERNATIONAL AIRPORT,
 AB9687'AND A SECONDARY CONTROL STATION IN THE GUYANA SURVEY NETWORK.
1    National Geodetic Survey, Retrieval Date = MAY 10, 2024 21:08:22 EDT
 AB9686 ***********************************************************************
 AB9686  DESIGNATION -  20 Y 8 RESET
 AB9686  PID         -  AB9686
 AB9686  STATE/COUNTY-  GY/REGION OF GUYANA
 AB9686  COUNTRY     -  GUYANA
 AB9686  USGS QUAD   -  
 AB9686
 AB9686                         *CURRENT SURVEY CONTROL
 AB9686  ______________________________________________________________________
 AB9686* NAD 83(1996) POSITION- 06 29 33.93636(N) 058 15 41.10492(W)   ADJUSTED
 AB9686* NAD 83(1996) ELLIP HT-     2.017 (meters)        (01/02/97)   ADJUSTED
 AB9686* LMSL    ORTHO HEIGHT -    27.7   (meters)       91.    (feet) GPS OBS
 AB9686  ______________________________________________________________________
 AB9686  LMSL orthometric height was determined with geoid model       EGM96
 AB9686  GEOID HEIGHT    -        -28.487 (meters)                     EGM96
 AB9686  GEOID HEIGHT    -        -28.603 (meters)                     EGM08
 AB9686  NAD 83(1996) X  -  3,333,807.694 (meters)                     COMP
 AB9686  NAD 83(1996) Y  - -5,389,773.273 (meters)                     COMP
 AB9686  NAD 83(1996) Z  -    716,427.577 (meters)                     COMP
 AB9686  HORZ ORDER      -  FIRST
 AB9686  ELLP ORDER      -  FIFTH     CLASS I
 AB9686
 AB9686.The horizontal coordinates were established by GPS observations
 AB9686.and adjusted by the National Geodetic Survey in January 1997.
 AB9686
 AB9686.The orthometric height was determined by GPS observations and a
 AB9686.high-resolution geoid model.
 AB9686
 AB9686.Significant digits in the geoid height do not necessarily reflect accuracy.
 AB9686
 AB9686.Click photographs - Photos may exist for this station.
 AB9686
 AB9686.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AB9686
 AB9686.The ellipsoidal height was determined by GPS observations
 AB9686.and is referenced to NAD 83.
 AB9686
 AB9686. The following values were computed from the NAD 83(1996) position.
 AB9686
 AB9686;                    North         East     Units Scale Factor Converg.
 AB9686;UTM  21      -   717,849.483   360,519.007   MT  0.99984079   -0 08 33.6
 AB9686
 AB9686!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AB9686!UTM  21      -   0.99999968  x   0.99984079  =   0.99984047
 AB9686
 AB9686_U.S. NATIONAL GRID SPATIAL ADDRESS: 21NUH6051917849(NAD 83)
 AB9686
 AB9686                          SUPERSEDED SURVEY CONTROL
 AB9686
 AB9686.No superseded survey control is available for this station.
 AB9686
 AB9686_MARKER: B = BOLT
 AB9686_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
 AB9686_STAMPING: THD 20Y8
 AB9686_MAGNETIC: I = MARKER IS A STEEL ROD
 AB9686_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
 AB9686+STABILITY: SURFACE MOTION
 AB9686_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AB9686+SATELLITE: SATELLITE OBSERVATIONS - 1996
 AB9686
 AB9686  HISTORY     - Date     Condition        Report By
 AB9686  HISTORY     - 1968     MONUMENTED       GYTHD
 AB9686  HISTORY     - 1996     GOOD             NGS
 AB9686
 AB9686                          STATION DESCRIPTION
 AB9686
 AB9686'DESCRIBED BY NATIONAL GEODETIC SURVEY 1996
 AB9686'THE STATION IS LOCATED 37 KM (23.00 MI) SOUTH-SOUTHWEST FROM
 AB9686'GEORGETOWN AT TIMEHRI INTERNATIONAL AIRPORT.  CONTACT ANTHONY
 AB9686'A.MEKDECI, DIRECTOR OF CIVIL AVIATION, WIGHTS LANE, KINGSTON DISTRICT,
 AB9686'GEORGETOWN, GUYANA, PHONE (592-2) 71219, FAX (592-2) 56800, IN ADVANCE
 AB9686'OF OPERATIONS TO ARRANGE FOR ACCESS TO STATION ON AIRFIELD.  TO REACH
 AB9686'THE STATION FROM THE RAMP, GO SOUTHWEST ON TAXIWAY C FOR 1700 FT
 AB9686'(518.2 M) TO RUNWAY 10.  CONTINUE SOUTHWEST ON TAXIWAY C FOR 2900 FT
 AB9686'(883.9 M) TO HOLD BAR AT END OF TAXIWAY C AND STATION ON THE RIGHT.
 AB9686'THE STATION IS THE TOP CENTER OF A 5/8 INCH BOLT (WITH 1 INCH HEX
 AB9686'HEAD) PROJECTING 1 INCH FROM CENTER OF A 13 X 18 INCH RECTANGULAR
 AB9686'CONCRETE MONUMENT.  LOCATED 145 FT (44.2 M) SOUTH FROM HEAD OF
 AB9686'DRAINAGE TRENCH AT TAXIWAY EDGE, 59.0 FT (18.0 M) NORTHWEST FROM
 AB9686'TAXIWAY CENTERLINE AT HOLDBAR, 47.9 FT (14.6 M) WEST FROM CENTERLINE
 AB9686'OF TAXIWAY, AND 1.5 FT (0.5 M) WEST FROM TAXIWAY LIGHT (NUMBER 26.)
 AB9686'THIS IS A SACS STATION AT TIMEHRI INTERNATIONAL AIRPORT, AND A
 AB9686'SECONDARY CONTROL STATION IN THE GUYANA SURVEY NETWORK.  --NOTE-- THIS
 AB9686'STATION WAS ORIGINALLY SET IN 1968 BY DOS (DIRECTORATE OF OVERSEAS
 AB9686'SURVEYS) AS A BRASS SURVEY MARKER.  THE STATION WAS RESET AT AN
 AB9686'UNKNOWN DATE BY THD (TRANSPORT AND HIGHWAYS DEPARTMENT.)
1    National Geodetic Survey, Retrieval Date = MAY 10, 2024 21:08:22 EDT
 AB9314 ***********************************************************************
 AB9314  DESIGNATION -  SYTM A
 AB9314  PID         -  AB9314
 AB9314  STATE/COUNTY-  GY/REGION OF GUYANA
 AB9314  COUNTRY     -  GUYANA
 AB9314  USGS QUAD   -  
 AB9314
 AB9314                         *CURRENT SURVEY CONTROL
 AB9314  ______________________________________________________________________
 AB9314* NAD 83(2011) POSITION- 06 29 48.74585(N) 058 15 16.50633(W)   NO CHECK
 AB9314* NAD 83(2011) ELLIP HT-     3.586 (meters)        (06/27/12)   NO CHECK
 AB9314* NAD 83(2011) EPOCH   -  2010.00
 AB9314* LMSL    ORTHO HEIGHT -    29.2   (meters)       96.    (feet) GPS OBS
 AB9314  ______________________________________________________________________
 AB9314  LMSL orthometric height was determined with geoid model       EGM96
 AB9314  GEOID HEIGHT    -        -28.492 (meters)                     EGM96
 AB9314  GEOID HEIGHT    -        -28.614 (meters)                     EGM08
 AB9314  NAD 83(2011) X  -  3,334,424.185 (meters)                     COMP
 AB9314  NAD 83(2011) Y  - -5,389,333.219 (meters)                     COMP
 AB9314  NAD 83(2011) Z  -    716,879.768 (meters)                     COMP
 AB9314
 AB9314  Network accuracy estimates per FGDC Geospatial Positioning Accuracy
 AB9314  Standards:
 AB9314         FGDC (95% conf, cm)     Standard deviation (cm)     CorrNE
 AB9314            Horiz  Ellip           SD_N   SD_E   SD_h      (unitless)
 AB9314  -------------------------------------------------------------------
 AB9314  NETWORK   24.60  11.19           2.31  12.49   5.71     -0.25072697
 AB9314  -------------------------------------------------------------------
 AB9314  Click here for local accuracies and other accuracy information.
 AB9314
 AB9314.The horizontal coordinates were established by GPS observations
 AB9314.and adjusted by the National Geodetic Survey in June 2012.
 AB9314
 AB9314.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has 
 AB9314.been affixed to the stable North American tectonic plate. See 
 AB9314.www.ngs.noaa.gov/web/surveys/NA2011 for more information. 
 AB9314
 AB9314.The horizontal coordinates are valid at the epoch date displayed above
 AB9314.which is a decimal equivalence of Year/Month/Day.
 AB9314
 AB9314.No horizontal observational check was made to the station.
 AB9314
 AB9314.The orthometric height was determined by GPS observations and a
 AB9314.high-resolution geoid model.
 AB9314
 AB9314.Significant digits in the geoid height do not necessarily reflect accuracy.
 AB9314
 AB9314.Click photographs - Photos may exist for this station.
 AB9314
 AB9314.The X, Y, and Z were computed from the position and the ellipsoidal ht.
 AB9314
 AB9314.The ellipsoidal height was determined by GPS observations
 AB9314.and is referenced to NAD 83.
 AB9314
 AB9314. The following values were computed from the NAD 83(2011) position.
 AB9314
 AB9314;                    North         East     Units Scale Factor Converg.
 AB9314;UTM  21      -   718,302.465   361,275.803   MT  0.99983819   -0 08 31.1
 AB9314
 AB9314!             -  Elev Factor  x  Scale Factor =   Combined Factor
 AB9314!UTM  21      -   0.99999944  x   0.99983819  =   0.99983763
 AB9314
 AB9314_U.S. NATIONAL GRID SPATIAL ADDRESS: 21NUH6127518302(NAD 83)
 AB9314
 AB9314                          SUPERSEDED SURVEY CONTROL
 AB9314
 AB9314  NAD 83(2007)-  06 29 48.74497(N)    058 15 16.50588(W) AD(2002.00) 0
 AB9314  ELLIP H (02/10/07)    3.598  (m)                       GP(2002.00)    
 AB9314  NAD 83(1996)-  06 29 48.74363(N)    058 15 16.50939(W) AD(       ) A
 AB9314  ELLIP H (12/09/96)    3.509  (m)                       GP(       ) 1 1
 AB9314
 AB9314.Superseded values are not recommended for survey control.
 AB9314
 AB9314.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 AB9314.See file dsdata.pdf to determine how the superseded data were derived.
 AB9314
 AB9314_MARKER: DH = HORIZONTAL CONTROL DISK
 AB9314_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
 AB9314_STAMPING: SYTM A 1996
 AB9314_MARK LOGO: NGS
 AB9314_MAGNETIC: N = NO MAGNETIC MATERIAL
 AB9314_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
 AB9314+STABILITY: SURFACE MOTION
 AB9314_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
 AB9314+SATELLITE: SATELLITE OBSERVATIONS - 1996
 AB9314
 AB9314  HISTORY     - Date     Condition        Report By
 AB9314  HISTORY     - 1996     MONUMENTED       NGS
 AB9314
 AB9314                          STATION DESCRIPTION
 AB9314
 AB9314'DESCRIBED BY NATIONAL GEODETIC SURVEY 1996 (RAZ)
 AB9314'THE STATION IS LOCATED 37 KM (23.00 MI) SOUTH-SOUTHWEST FROM
 AB9314'GEORGETOWN AT TIMEHRI INTERNATIONAL AIRPORT.  CONTACT ANTHONY
 AB9314'A.MEKDECI, DIRECTOR OF CIVIL AVIATION, WIGHTS LANE, KINGSTON DISTRICT,
 AB9314'GEORGETOWN, GUYANA, PHONE (592-2) 71219, FAX (592-2) 56800, IN ADVANCE
 AB9314'OF OPERATIONS TO ARRANGE FOR ACCESS TO STATION ON AIRFIELD.  TO REACH
 AB9314'THE STATION FROM THE CONTROL TOWER, GO SOUTHWEST ON TAXIWAY C FOR 1100
 AB9314'FT (335.3 M) TO RUNWAY 10.  TURN LEFT AND GO EAST ON RUNWAY 10 FOR 800
 AB9314'FT (243.8 M) TO RUNWAY 24.  TURN RIGHT AND GO SOUTHWEST ON RUNWAY 24
 AB9314'FOR APPROXIMATELY 800 FT (243.8 M) TO THE STATION ON THE LEFT AT THE
 AB9314'HIGH POINT OF A SMALL SAND HILL.  LOCATED 260.9 FT (79.5 M) WEST FROM
 AB9314'A TELEPHONE POLE, 260.4 FT (79.4 M) SOUTHWEST FROM A GENERATOR, 232.6
 AB9314'FT (70.9 M) SOUTH FROM A POWER BOX, AND 255.6 FT (77.9 M) SOUTHEAST
 AB9314'FROM SOUTH EDGE OF RUNWAY 24.  THIS IS THE PACS STATION AT TIMEHRI
 AB9314'INTERNATIONAL AIRPORT.

 *** retrieval complete.
