HV4186 ***********************************************************************
HV4186  DESIGNATION -  WASHINGTON TV STA WTOP TOWER
HV4186  PID         -  HV4186
HV4186  STATE/COUNTY-  DC/DISTRICT OF COLUMBIA
HV4186  USGS QUAD   -  WASHINGTON WEST (1983)
HV4186
HV4186                         *CURRENT SURVEY CONTROL
HV4186  ___________________________________________________________________
HV4186* NAD 83(1993)-  38 57 00.08061(N)    077 04 45.66596(W)     ADJUSTED
HV4186* NAVD 88     -
HV4186  ___________________________________________________________________
HV4186  LAPLACE CORR-          -2.70  (seconds)                    DEFLEC99
HV4186  GEOID HEIGHT-         -31.90  (meters)                     GEOID99
HV4186
HV4186  HORZ ORDER  -  THIRD
HV4186
HV4186.The horizontal coordinates were established by classical geodetic methods
HV4186.and adjusted by the National Geodetic Survey in November 1994.
HV4186
HV4186
HV4186.The Laplace correction was computed from DEFLEC99 derived deflections.
HV4186
HV4186.The geoid height was determined by GEOID99.
HV4186
HV4186;                    North         East     Units   Scale      Converg.
HV4186;SPC MD       -   467,391.46  1,289,766.31   sFT  0.99995068 -0 02 59.3
HV4186;SPC MD       -   142,461.203   393,121.558   MT  0.99995068 -0 02 59.3
HV4186;SPC VA N     - 2,143,405.976 3,623,142.983   MT  0.99996519 +0 53 11.9
HV4186;UTM  18      - 4,313,286.500   319,810.314   MT  0.99999982 -1 18 27.1
HV4186
HV4186                          SUPERSEDED SURVEY CONTROL
HV4186
HV4186  NAD 83(1991)-  38 57 00.07980(N)    077 04 45.66705(W) AD(       ) 4
HV4186  NAD 83(1986)-  38 57 00.07953(N)    077 04 45.67706(W) AD(       ) 4
HV4186  NAD 27      -  38 56 59.68319(N)    077 04 46.75253(W) AD(       ) 3
HV4186
HV4186.Superseded values are not recommended for survey control.
HV4186.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV4186.See file dsdata.txt to determine how the superseded data were derived.
HV4186
HV4186_MARKER: 43 = RADIO/TV TOWER
HV4186
HV4186  HISTORY     - Date     Condition        Recov. By
HV4186  HISTORY     - 1956     FIRST OBSERVED   CGS
HV4186  HISTORY     - 1969     GOOD             CGS
HV4186  HISTORY     - 19950601 GOOD             USPSQD
HV4186
HV4186                          STATION DESCRIPTION
HV4186
HV4186''DESCRIBED BY COAST AND GEODETIC SURVEY 1956 (MLC)
HV4186''THE POINT LOCATED WAS THE TOP CENTER OF THE TOWER WHICH IS
HV4186''373 FT. ABOVE THE GROUND.
HV4186''
HV4186''THE STATION IS LOCATED AT FORTY-FIRST STREET, AT BRANDYWINE,
HV4186''NEAR THE NW BOUNDARY OF THE DISTRICT OF COLUMBIA.
HV4186''
HV4186''THIS IS AN INTERSECTION STATION.
HV4186
HV4186                          STATION RECOVERY (1969)
HV4186
HV4186''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1969 (JBJ)
HV4186''THE STATION IS THE CENTER OF THE TOP OF THE LIGHT ON TOP OF THE
HV4186''MAST OF THE WASHINGTON, DISTRICT OF COLUMBIA TELEVISION STATION
HV4186''WTOP.  THE MAST IS ON A FOUR LEGGED SELF-SUPPORTED TOWER THAT IS
HV4186''373 FEET ABOVE THE GROUND AND THE MAST IS 157 FEET ABOVE THE
HV4186''TOWER.  THE STATION IS ABOUT 530 FEET ABOVE THE GROUND
HV4186''SURFACE.
HV4186''
HV4186''THE STATION IS LOCATED AT THE CORNER OF NORTH-WEST 40TH STREET
HV4186''AND NORTH-WEST BRANDYWINE STREET IN THE DISTRICT OF COLUMBIA.
HV4186
HV4186                          STATION RECOVERY (1995)
HV4186
HV4186''RECOVERY NOTE BY US POWER SQUADRON 1995
HV4186''RECOVERED IN GOOD CONDITION.