AI7615 ***********************************************************************
AI7615  DESIGNATION -  DCA 00 05
AI7615  PID         -  AI7615
AI7615  STATE/COUNTY-  VA/ARLINGTON
AI7615  USGS QUAD   -  ALEXANDRIA (1994)
AI7615
AI7615                         *CURRENT SURVEY CONTROL
AI7615  ___________________________________________________________________
AI7615* NAD 83(1986)-  38 51 34.     (N)    077 02 43.     (W)     SCALED
AI7615* NAVD 88     -         5.228  (meters)      17.15   (feet)  ADJUSTED
AI7615  ___________________________________________________________________
AI7615  GEOID HEIGHT-         -32.08  (meters)                     GEOID99
AI7615  DYNAMIC HT  -           5.225 (meters)      17.14  (feet)  COMP
AI7615  MODELED GRAV-     980,095.0   (mgal)                       NAVD 88
AI7615
AI7615  VERT ORDER  -  FIRST     CLASS II
AI7615
AI7615.The horizontal coordinates were scaled from a topographic map and have
AI7615.an estimated accuracy of +/- 6 seconds.
AI7615
AI7615.The orthometric height was determined by differential leveling
AI7615.and adjusted by the National Geodetic Survey in November 2000.
AI7615.No vertical observational check was made to the station.
AI7615
AI7615.The geoid height was determined by GEOID99.
AI7615
AI7615.The dynamic height is computed by dividing the NAVD 88
AI7615.geopotential number by the normal gravity value computed on the
AI7615.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
AI7615.degrees latitude (g = 980.6199 gals.).
AI7615
AI7615.The modeled gravity was interpolated from observed gravity values.
AI7615
AI7615;                    North         East    Units  Estimated Accuracy
AI7615;SPC VA N     - 2,133,400.    3,626,260.      MT  (+/- 180 meters Scaled)
AI7615
AI7615                          SUPERSEDED SURVEY CONTROL
AI7615
AI7615.No superseded survey control is available for this station.
AI7615
AI7615_MARKER: DD = SURVEY DISK
AI7615_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
AI7615_STAMPING: DCA-00-05
AI7615_MAGNETIC: N = NO MAGNETIC MATERIAL
AI7615_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
AI7615+STABILITY: SURFACE MOTION
AI7615
AI7615  HISTORY     - Date     Condition        Recov. By
AI7615  HISTORY     - UNK      MONUMENTED       RICE
AI7615  HISTORY     - 20000801 GOOD             NGS
AI7615
AI7615                          STATION DESCRIPTION
AI7615
AI7615''DESCRIBED BY NATIONAL GEODETIC SURVEY 2000 (RWA)
AI7615''AT THE RONALD REAGAN WASHINGTON NATIONAL AIRPORT, AT BUILDING NO 12 AT
AI7615''NORTHWEST END OF AIRPORT AND MARK IS AT WEST SIDE OF BUILDING.  8.0
AI7615''FEET (2.4 M) SOUTH OF A LIGHT POLE SUPPORTED BY A 10 FOOT (3.0 M) 10
AI7615''INCH CONCRETE FOUNDATION, 10.8 FEET (3.3 M) WEST OF WEST SIDE OF
AI7615''BUILDING NO 12, 4.3 FEET (1.3 M) NORTHEAST OF A TREE, 22.0 FEET (6.7
AI7615''M) EAST OF CENTERLINE OF BLACKTOP ROAD LEADING TO A PARKING LOT K.
AI7615''2.0 FEET (0.6 M) ABOVE ROAD.