JV6148 ***********************************************************************
JV6148  DESIGNATION -  3596
JV6148  PID         -  JV6148
JV6148  STATE/COUNTY-  MD/MONTGOMERY
JV6148  USGS QUAD   -  GERMANTOWN (1979)
JV6148
JV6148                         *CURRENT SURVEY CONTROL
JV6148  ___________________________________________________________________
JV6148* NAD 83(1986)-  39 09 20.     (N)    077 15 43.     (W)     SCALED
JV6148* NAVD 88     -        94.718  (meters)     310.75   (feet)  ADJUSTED
JV6148  ___________________________________________________________________
JV6148  GEOID HEIGHT-         -31.79  (meters)                     GEOID99
JV6148  DYNAMIC HT  -          94.668 (meters)     310.59  (feet)  COMP
JV6148  MODELED GRAV-     980,099.9   (mgal)                       NAVD 88
JV6148
JV6148  VERT ORDER  -  FIRST     CLASS I
JV6148
JV6148.The horizontal coordinates were scaled from a topographic map and have
JV6148.an estimated accuracy of +/- 6 seconds.
JV6148
JV6148.The orthometric height was determined by differential leveling
JV6148.and adjusted by the National Geodetic Survey in June 1991.
JV6148
JV6148.The geoid height was determined by GEOID99.
JV6148
JV6148.The dynamic height is computed by dividing the NAVD 88
JV6148.geopotential number by the normal gravity value computed on the
JV6148.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
JV6148.degrees latitude (g = 980.6199 gals.).
JV6148
JV6148.The modeled gravity was interpolated from observed gravity values.
JV6148
JV6148;                    North         East    Units  Estimated Accuracy
JV6148;SPC MD       -   165,310.      377,360.      MT  (+/- 180 meters Scaled)
JV6148
JV6148                          SUPERSEDED SURVEY CONTROL
JV6148
JV6148.No superseded survey control is available for this station.
JV6148
JV6148_MARKER: DD = SURVEY DISK
JV6148_SETTING: 32 = CONCRETE HEADWALL
JV6148_STAMPING: 3596
JV6148_MAGNETIC: N = NO MAGNETIC MATERIAL
JV6148_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
JV6148+STABILITY: SURFACE MOTION
JV6148_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR
JV6148+SATELLITE: SATELLITE OBSERVATIONS - October 17, 1989
JV6148
JV6148  HISTORY     - Date     Condition        Recov. By
JV6148  HISTORY     - UNK      MONUMENTED       WSSC
JV6148  HISTORY     - 19891017 GOOD             NGS
JV6148  HISTORY     - 19911113 GOOD             NGS
JV6148
JV6148                          STATION DESCRIPTION
JV6148
JV6148''DESCRIBED BY NATIONAL GEODETIC SURVEY 1989
JV6148''2.05 KM (1.27 MI) SOUTHEAST ALONG STATE ROUTE 117 FROM THE
JV6148''INTERSECTION OF STATE ROUTE 118 IN OLD GERMANTOWN TO THE MARK ON THE
JV6148''LEFT, SET IN THE NORTH END OF THE EAST HEADWALL OF A DOUBLE BOX
JV6148''CULVERT, 5.2 M (17 FT) EAST OF THE CENTERLINE OF THE HIGHWAY, 0.2 M
JV6148''(0.6 FT) SOUTH OF THE NORTH END OF THE HEADWALL, 0.22 M (0.75 FT)
JV6148''NORTH OF THE EAST GRARD RAIL ON THE HEADWALL, AND ABOUT 0.5 M (1.5
JV6148''FT) ABOVE THE HIGHWAY.
JV6148
JV6148                          STATION RECOVERY (1991)
JV6148
JV6148''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991
JV6148''RECOVERED IN GOOD CONDITION.