DX0239 ***********************************************************************
DX0239  DESIGNATION -  F 308 RESET
DX0239  PID         -  DX0239
DX0239  STATE/COUNTY-  CA/SAN DIEGO
DX0239  USGS QUAD   -  SANTA YSABEL (1988)
DX0239
DX0239                         *CURRENT SURVEY CONTROL
DX0239  ___________________________________________________________________
DX0239* NAD 83(1986)-  33 05 55.     (N)    116 39 53.     (W)     SCALED
DX0239* NAVD 88     -      1016.771  (meters)    3335.86   (feet)  READJUSTED
DX0239  ___________________________________________________________________
DX0239  GEOID HEIGHT-         -31.62  (meters)                     GEOID99
DX0239  DYNAMIC HT  -        1015.470 (meters)    3331.59  (feet)  COMP
DX0239  MODELED GRAV-     979,325.8   (mgal)                       NAVD 88
DX0239
DX0239  VERT ORDER  -  * READJUSTED, Code A , SEE BELOW
DX0239
DX0239.The horizontal coordinates were scaled from a topographic map and have
DX0239.an estimated accuracy of +/- 6 seconds.
DX0239
DX0239.The orthometric height was determined by differential leveling
DX0239.and adjusted by the National Geodetic Survey in February 1993.
DX0239.* This is a READJUSTED BENCH MARK height.  Code A indicates a
DX0239.distribution rate of 0.0 thru 1.0 mm/km.
DX0239.The height was derived from older observations constrained to new
DX0239.heights in a crustal motion area.  The height is approximate in
DX0239.relation to other heights in its vicinity.
DX0239
DX0239.The geoid height was determined by GEOID99.
DX0239
DX0239.The dynamic height is computed by dividing the NAVD 88
DX0239.geopotential number by the normal gravity value computed on the
DX0239.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
DX0239.degrees latitude (G = 980.6199 gals.).
DX0239
DX0239.The modeled gravity was interpolated from observed gravity values.
DX0239
DX0239;                    North         East    Units  Estimated Accuracy
DX0239;SPC CA 6     -   603,430.    1,961,290.      MT  (+/- 180 meters Scaled)
DX0239
DX0239                          SUPERSEDED SURVEY CONTROL
DX0239
DX0239  NGVD 29     -      1016.04   (m)         3333.5    (f) RESET       3
DX0239
DX0239.Superseded values are not recommended for survey control.
DX0239.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DX0239.See file dsdata.txt to determine how the superseded data were derived.
DX0239
DX0239_MARKER: DB = BENCH MARK DISK
DX0239_SETTING: 66 = SET IN ROCK OUTCROP
DX0239_STAMPING: F 308 1939 RESET
DX0239_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
DX0239+STABILITY: POSITION/ELEVATION WELL
DX0239
DX0239  HISTORY     - Date     Condition        Recov. By
DX0239  HISTORY     - 1939     MONUMENTED       CGS
DX0239  HISTORY     - 1956     GOOD             NGS
DX0239  HISTORY     - 1960     GOOD             NGS
DX0239  HISTORY     - 1978     GOOD             NGS
DX0239
DX0239                          STATION DESCRIPTION
DX0239
DX0239''DESCRIBED BY NATIONAL GEODETIC SURVEY 1956
DX0239''1.1 MI SE FROM SANTA YSABEL.
DX0239''1.1 MILES SOUTHEAST ALONG STATE HIGHWAY 78 AND 79 FROM THE POST
DX0239''OFFICE AT SANTA YSABEL, ON THE OUTSIDE OF A U CURVE, IN THE TOP
DX0239''OF A 42- BY 21-FOOT GRANITE OUTCROP OF BEDROCK WHICH PROJECTS
DX0239''4 FEET ABOVE THE GROUND, AT THE APPROXIMATE CENTER OF A BORROW
DX0239''PIT, 75.0 FEET SOUTH OF THE CENTER LINE OF THE HIGHWAY, 24 FEET
DX0239''SOUTH OF THE CENTER LINE OF A PORTION OF THE OLD HIGHWAY BED, 3
DX0239''FEET SOUTH OF THE NORTH EDGE OF THE OUTCROP, AND ABOUT 5 1/2
DX0239''FEET HIGHER THAN THE HIGHWAY.
DX0239
DX0239                          STATION RECOVERY (1960)
DX0239
DX0239''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1960
DX0239''RECOVERED IN GOOD CONDITION.
DX0239
DX0239                          STATION RECOVERY (1978)
DX0239
DX0239''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978
DX0239''RECOVERED IN GOOD CONDITION.