AA8581 ***********************************************************************
AA8581  DESIGNATION -  CSL-21
AA8581  PID         -  AA8581
AA8581  STATE/COUNTY-  MO/C OF ST LOUIS
AA8581  USGS QUAD   -  GRANITE CITY (1998)
AA8581
AA8581                         *CURRENT SURVEY CONTROL
AA8581  ___________________________________________________________________
AA8581* NAD 83(1997)-  38 42 13.91008(N)    090 13 21.82633(W)     ADJUSTED
AA8581* NAVD 88     -       131.1    (meters)     430.     (feet)  GPS OBS
AA8581  ___________________________________________________________________
AA8581  X           -     -19,374.681 (meters)                     COMP
AA8581  Y           -  -4,983,990.349 (meters)                     COMP
AA8581  Z           -   3,966,777.584 (meters)                     COMP
AA8581  LAPLACE CORR-           0.69  (seconds)                    DEFLEC99
AA8581  ELLIP HEIGHT-          99.91  (meters)                     GPS OBS
AA8581  GEOID HEIGHT-         -31.25  (meters)                     GEOID99
AA8581
AA8581  HORZ ORDER  -  FIRST
AA8581  ELLP ORDER  -  FOURTH    CLASS I
AA8581
AA8581.The horizontal coordinates were established by GPS observations
AA8581.and adjusted by the National Geodetic Survey in February 2000.
AA8581
AA8581.The orthometric height was determined by GPS observations and a
AA8581.high-resolution geoid model.
AA8581
AA8581.The X, Y, and Z were computed from the position and the ellipsoidal ht.
AA8581
AA8581.The Laplace correction was computed from DEFLEC99 derived deflections.
AA8581
AA8581.The ellipsoidal height was determined by GPS observations
AA8581.and is referenced to NAD 83.
AA8581
AA8581.The geoid height was determined by GEOID99.
AA8581
AA8581;                    North         East     Units   Scale      Converg.
AA8581;SPC MO E     -   318,594.620   274,117.155   MT  0.99994049 +0 10 24.2
AA8581;UTM  15      - 4,287,576.503   741,508.780   MT  1.00031831 +1 44 14.8
AA8581
AA8581                          SUPERSEDED SURVEY CONTROL
AA8581
AA8581  NAD 83(1997)-  38 42 13.91055(N)    090 13 21.82641(W) AD(       ) 1
AA8581  NAD 83(1986)-  38 42 13.92520(N)    090 13 21.82169(W) AD(       ) 1
AA8581
AA8581.Superseded values are not recommended for survey control.
AA8581.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AA8581.See file dsdata.txt to determine how the superseded data were derived.
AA8581
AA8581_MARKER: DD = SURVEY DISK
AA8581_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
AA8581_STAMPING: CSL-21 1990
AA8581_MAGNETIC: M = MARKER EQUIPPED WITH BAR MAGNET
AA8581_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
AA8581+STABILITY: SURFACE MOTION
AA8581_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
AA8581+SATELLITE: SATELLITE OBSERVATIONS - 1990
AA8581
AA8581  HISTORY     - Date     Condition        Recov. By
AA8581  HISTORY     - 1990     MONUMENTED       MODNR
AA8581
AA8581                          STATION DESCRIPTION
AA8581
AA8581''DESCRIBED BY MO DEPT OF NAT RES 1990
AA8581''STATION, AZIMUTH MARKS AND REFERENCE TIES THE AZIMUTH MARK IS ABOUT
AA8581''0.3 MILES (0.5 KM) NW ON THE SE SIDE OF HALL STREET (APPROXIMATELY 250
AA8581''FT SOUTH OF BLAZE AVENUE) AND 43.2 FT (13.2 M) SE OF TH SOUTH RAIL OF
AA8581''A RR X-ING.  IT IS 9.29 FT (2.83 M) SE OF THE CORNER POST OF A CHAIN
AA8581''LINK FENCE, 7.28 FEET (2.22 M) FROM A CUT (X) 0.2 FT (6.1 CM) EAST OF
AA8581''SW EDGE OF HALL STREET PAVEMENT, 4.59 FT (1.40 M) SW OF EDGE OF
AA8581''PAVEMENT, 6.62 FT (2.02 M) NNW OF A CUT (X) 0.2 FT  (6.1 CM) FROM SW
AA8581''EDGE OF PAVEMENT, 13.88 FT (4.23 M) FROM A BRACED POST IN THE CHAIN
AA8581''LINK FENCE, AND 4.3 FT (1.3 M) NE OF A CARSONITE WITNESS POST STATION
AA8581''AND AZIMUTH MARK TO REACH TO REACH THE STATION FROM THE CENTER OF I-70
AA8581''EXIT 246B (ADELAIDE AVENUE), GO NE ON ADELAIDE AVENUE FOR 0.45 MILES
AA8581''(0.72 KM) TO TRAFFIC LIGHT INTERSECTION WITH HALL STREET.  TURN LEFT
AA8581''AND GO NW ON HALL STREET FOR 1.75 MILES (2.82 KM) TO STATION SITE ON
AA8581''RIGHT (NE) SIDE OF STREET AS DESCRIBED. TO REACH THE AZIMUTH MARK FROM
AA8581''THE STATION CONTINUE NORTHWESTERLY ON HALL STREET FOR 0.3 MILES (0.5
AA8581''KM) TO AZIMUTH MARK SITE ON LEFT (SW) SIDE JUST BEFORE REACHING THE
AA8581''RAILROAD CROSSING AS DESCRIBED. DATE OF REPORT 06-06-1995