AN1240 ***********************************************************************
AN1240  DESIGNATION -  E 40
AN1240  PID         -  AN1240
AN1240  STATE/COUNTY-  TX/REFUGIO
AN1240  USGS QUAD   -  REFUGIO (1979)
AN1240
AN1240                         *CURRENT SURVEY CONTROL
AN1240  ___________________________________________________________________
AN1240* NAD 83(1986)-  28 17 49.     (N)    097 16 30.     (W)     SCALED
AN1240* NAVD 88     -        17.210  (meters)      56.46   (feet)  ADJUSTED
AN1240  ___________________________________________________________________
AN1240  GEOID HEIGHT-         -27.13  (meters)                     GEOID99
AN1240  DYNAMIC HT  -          17.185 (meters)      56.38  (feet)  COMP
AN1240  MODELED GRAV-     979,156.3   (mgal)                       NAVD 88
AN1240
AN1240  VERT ORDER  -  FIRST     CLASS I
AN1240
AN1240.The horizontal coordinates were scaled from a topographic map and have
AN1240.an estimated accuracy of +/- 6 seconds.
AN1240
AN1240.The orthometric height was determined by differential leveling
AN1240.and adjusted by the National Geodetic Survey in June 1991.
AN1240
AN1240.The geoid height was determined by GEOID99.
AN1240
AN1240.The dynamic height is computed by dividing the NAVD 88
AN1240.geopotential number by the normal gravity value computed on the
AN1240.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
AN1240.degrees latitude (G = 980.6199 gals.).
AN1240
AN1240.The modeled gravity was interpolated from observed gravity values.
AN1240
AN1240;                    North         East    Units  Estimated Accuracy
AN1240;SPC TXSC     - 4,052,630.      769,210.      MT  (+/- 180 meters Scaled)
AN1240
AN1240                          SUPERSEDED SURVEY CONTROL
AN1240
AN1240  NGVD 29     -        17.368  (m)           56.98   (f) ADJ UNCH    1 1
AN1240
AN1240.Superseded values are not recommended for survey control.
AN1240.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AN1240.See file dsdata.txt to determine how the superseded data were derived.
AN1240
AN1240_MARKER: DB = BENCH MARK DISK
AN1240_SETTING: 36 = BUILDING
AN1240_STAMPING: E 40 1918 ELEV. 57.789 FT.
AN1240_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
AN1240
AN1240  HISTORY     - Date     Condition        Recov. By
AN1240  HISTORY     - 1918     MONUMENTED       CGS
AN1240  HISTORY     - 1943     GOOD             NGS
AN1240  HISTORY     - 1978     GOOD             NGS
AN1240  HISTORY     - 1990     GOOD             USPSQD
AN1240  HISTORY     - 19910408 GOOD             USPSQD
AN1240  HISTORY     - 19940716 GOOD             USPSQD
AN1240
AN1240                          STATION DESCRIPTION
AN1240
AN1240''DESCRIBED BY NATIONAL GEODETIC SURVEY 1943
AN1240''IN REFUGIO.
AN1240''BENCH MARK IS AT THE COUNTY COURT HOUSE AND SET VERTICALLY IN THE
AN1240''NORTH SIDE OF THE EAST ENTRANCE.  IT IS ABOUT 4.0 FEET ABOVE THE SIDE
AN1240''WALK.  A DISK SET IN DRILL HOLE.
AN1240
AN1240                          STATION RECOVERY (1978)
AN1240
AN1240''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978
AN1240''RECOVERED IN GOOD CONDITION.
AN1240
AN1240                          STATION RECOVERY (1990)
AN1240
AN1240''RECOVERY NOTE BY US POWER SQUADRON 1990 (LT)
AN1240''RECOVERED IN GOOD CONDITION.
AN1240
AN1240                          STATION RECOVERY (1991)
AN1240
AN1240''RECOVERY NOTE BY US POWER SQUADRON 1991 (CAG)
AN1240''RECOVERED IN GOOD CONDITION.
AN1240
AN1240                          STATION RECOVERY (1994)
AN1240
AN1240''RECOVERY NOTE BY US POWER SQUADRON 1994
AN1240''RECOVERED IN GOOD CONDITION.