AF9887 ***********************************************************************
AF9887  DESIGNATION -  SDPR 16
AF9887  PID         -  AF9887
AF9887  STATE/COUNTY-  CA/SAN DIEGO
AF9887  USGS QUAD   -  TUBB CANYON (1965)
AF9887
AF9887                         *CURRENT SURVEY CONTROL
AF9887  ___________________________________________________________________
AF9887* NAD 83(1992)-  33 12 58.96064(N)    116 27 03.81718(W)     ADJUSTED
AF9887* NAVD 88     -       953.519  (meters)    3128.34   (feet)  ADJUSTED
AF9887  ___________________________________________________________________
AF9887  EPOCH DATE  -        1991.35
AF9887  X           -  -2,379,565.672 (meters)                     COMP
AF9887  Y           -  -4,782,896.855 (meters)                     COMP
AF9887  Z           -   3,474,564.892 (meters)                     COMP
AF9887  LAPLACE CORR-         -11.26  (seconds)                    DEFLEC99
AF9887  ELLIP HEIGHT-         921.53  (meters)                     GPS OBS
AF9887  GEOID HEIGHT-         -32.03  (meters)                     GEOID99
AF9887  DYNAMIC HT  -         952.304 (meters)    3124.35  (feet)  COMP
AF9887  MODELED GRAV-     979,329.5   (mgal)                       NAVD 88
AF9887
AF9887  HORZ ORDER  -  FIRST
AF9887  VERT ORDER  -  THIRD
AF9887  ELLP ORDER  -  FOURTH    CLASS II
AF9887
AF9887.The horizontal coordinates were established by GPS observations
AF9887.and adjusted by the National Geodetic Survey in July 1998.
AF9887.The horizontal coordinates are valid at the epoch date displayed above.
AF9887.The epoch date for horizontal control is a decimal equivalence
AF9887.of Year/Month/Day.
AF9887
AF9887.The orthometric height was determined by differential leveling
AF9887.and adjusted by the National Geodetic Survey in May 2000.
AF9887
AF9887.The X, Y, and Z were computed from the position and the ellipsoidal ht.
AF9887
AF9887.The Laplace correction was computed from DEFLEC99 derived deflections.
AF9887
AF9887.The ellipsoidal height was determined by GPS observations
AF9887.and is referenced to NAD 83.
AF9887
AF9887.The geoid height was determined by GEOID99.
AF9887
AF9887.The dynamic height is computed by dividing the NAVD 88
AF9887.geopotential number by the normal gravity value computed on the
AF9887.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
AF9887.degrees latitude (G = 980.6199 gals.).
AF9887
AF9887.The modeled gravity was interpolated from observed gravity values.
AF9887
AF9887;                    North         East     Units   Scale      Converg.
AF9887;SPC CA 6     - 2,022,415.69  6,500,174.32   sFT  0.99995624 -0 06 37.8
AF9887;SPC CA 6     -   616,433.534 1,981,257.096   MT  0.99995624 -0 06 37.8
AF9887;UTM  11      - 3,675,409.283   551,154.437   MT  0.99963226 +0 18 02.6
AF9887
AF9887                          SUPERSEDED SURVEY CONTROL
AF9887
AF9887.No superseded survey control is available for this station.
AF9887
AF9887_MARKER: DD = SURVEY DISK
AF9887_SETTING: 80 = SET IN A BOULDER
AF9887_STAMPING: SDPR 16 1995
AF9887_MAGNETIC: N = NO MAGNETIC MATERIAL
AF9887_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
AF9887+STABILITY: SURFACE MOTION
AF9887_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
AF9887+SATELLITE: SATELLITE OBSERVATIONS - 1995
AF9887
AF9887  HISTORY     - Date     Condition        Recov. By
AF9887  HISTORY     - 1995     MONUMENTED       CADT
AF9887
AF9887                          STATION DESCRIPTION
AF9887
AF9887''DESCRIBED BY CALTRANS 1995 (ATD)
AF9887''THE STATION IS LOCATED 4.2 MI (6.8 KM) EAST OF RANCHITA, 5.0 MI (8.0
AF9887''KM) SOUTHWEST OF BORREGO SPRINGS ON THE WEST SIDE OF SAN DIEGO COUNTY
AF9887''ROUTE S-22 AT POST MILE 9.9.  TO REACH THE FROM THE TRAFFIC CIRCLE IN
AF9887''BORREGO SPRINGS, KNOWN LOCALLY AS CHRISTMAS CIRCLE, GO WEST ON SAN
AF9887''DIEGO COUNTY RTE.  S-22, PALM CANYON ROAD, FOR 1.4 MI (2.3 KM) TO THE
AF9887''INTERSECTION OF HOBERG RD HEADING NORTH AND MONTEZUMA VALLEY RD
AF9887''HEADING SOUTH.  TURN LEFT, AND GO SOUTH THEN SOUTHWEST 5.1 MI (8.2 KM)
AF9887''TO A VIEWPOINT AND STONE MONUMENT IN A TURNOUT ON THE LEFT, WEST.
AF9887''CONTINUE STRAIGHT AHEAD 2.6 MI (4.2 KM) TO A POINT ABOUT 500 FT (152.4
AF9887''M) SOUTHEAST OF THE WESTERLY END OF A PASSING LANE AND THE STATION ON
AF9887''THE LEFT, WEST.  THE STATION MARK IS IN A LOW BOULDER 88.3 FT (26.9 M)
AF9887''WEST OF A DO NOT PASS SIGN ON THE EAST SHOULDER, 43 FT (13.1 M) WEST
AF9887''OF THE WEST SHOULDER OF THE ROAD, 34.5 FT (10.5 M) SOUTHWEST OF THE
AF9887''WEST END OF AN 18 IN METAL PIPE, 3 FT (0.9 M) NORTH OF A 5 FT (1.5 M)
AF9887''HIGH BOUDER, 5.3 FT (1.6 M) ABOVE THE WEST SHOULDER OF THE ROAD.
AF9887''THE STATION WAS LEVELED TO BY CADT AS A PART OF THE 1995 PERIPHERAL
AF9887''RUN IN SAN DIEGO COUNTY TO ESTABLISH NAVD 1988.  OCCUPIED BY GPS
AF9887''RECEIVER AS PART OF SAN DIEGO VERTICAL GPS SURVEY.