AB4812 ***********************************************************************
AB4812  DESIGNATION -  3 WF
AB4812  PID         -  AB4812
AB4812  STATE/COUNTY-  CO/LOGAN
AB4812  USGS QUAD   -  STERLING SOUTH (1972)
AB4812
AB4812                         *CURRENT SURVEY CONTROL
AB4812  ___________________________________________________________________
AB4812* NAD 83(1992)-  40 33 53.23569(N)    103 08 53.22075(W)     ADJUSTED
AB4812* NAVD 88     -      1282.2    (meters)    4207.     (feet)  GPS OBS
AB4812  ___________________________________________________________________
AB4812  X           -  -1,103,934.865 (meters)                     COMP
AB4812  Y           -  -4,725,895.483 (meters)                     COMP
AB4812  Z           -   4,126,648.782 (meters)                     COMP
AB4812  LAPLACE CORR-          -1.87  (seconds)                    DEFLEC99
AB4812  ELLIP HEIGHT-        1262.35  (meters)                     GPS OBS
AB4812  GEOID HEIGHT-         -19.82  (meters)                     GEOID99
AB4812
AB4812  HORZ ORDER  -  FIRST
AB4812  ELLP ORDER  -  FIRST     CLASS I
AB4812
AB4812.The horizontal coordinates were established by GPS observations
AB4812.and adjusted by the National Geodetic Survey in July 1996.
AB4812
AB4812.The orthometric height was determined by GPS observations and a
AB4812.high-resolution geoid model.
AB4812
AB4812.The X, Y, and Z were computed from the position and the ellipsoidal ht.
AB4812
AB4812.The Laplace correction was computed from DEFLEC99 derived deflections.
AB4812
AB4812.The ellipsoidal height was determined by GPS observations
AB4812.and is referenced to NAD 83.
AB4812
AB4812.The geoid height was determined by GEOID99.
AB4812
AB4812;                    North         East     Units   Scale      Converg.
AB4812;SPC CO N     - 1,457,258.03  3,653,354.98   sFT  0.99997183 +1 31 10.7
AB4812;SPC CO N     -   444,173.135 1,113,544.824   MT  0.99997183 +1 31 10.7
AB4812;UTM  13      - 4,492,094.076   656,770.409   MT  0.99990252 +1 12 16.3
AB4812
AB4812                          SUPERSEDED SURVEY CONTROL
AB4812
AB4812  ELLIP HT    -        1262.60  (m)                      GP(       ) 1 1
AB4812
AB4812.Superseded values are not recommended for survey control.
AB4812.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AB4812.See file dsdata.txt to determine how the superseded data were derived.
AB4812
AB4812_MARKER: DB = BENCH MARK DISK
AB4812_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
AB4812_STAMPING: 3 WF 1948 4205 USGS
AB4812_MAGNETIC: N = NO MAGNETIC MATERIAL
AB4812_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
AB4812+STABILITY: SURFACE MOTION
AB4812_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
AB4812+SATELLITE: SATELLITE OBSERVATIONS - 1995
AB4812
AB4812  HISTORY     - Date     Condition        Recov. By
AB4812  HISTORY     - 1948     MONUMENTED       USGS
AB4812  HISTORY     - 1995     GOOD             CODOT
AB4812
AB4812                          STATION DESCRIPTION
AB4812
AB4812''DESCRIBED BY COLORADO DEPARTMENT OF TRANSPORTATION 1995
AB4812''STATION IS LOCATED ABOUT 6 MILES (9.7 KM) SOUTHEAST OF STERLING, ON
AB4812''COUNTY ROAD RIGHT OF WAY, IN THE NORTHEAST 1/4 OF SEC.  23, T.  7 N.,
AB4812''R.  52 W.  TO REACH FROM THE INTERSECTION OF US 6 AND SH 61, GO SOUTH
AB4812''AND SOUTHEAST ON SH 61 FOR 1.7 MILES (2.7 KM) TO JUNCTION WITH COUNTY
AB4812''ROAD 47, GO SOUTH ON COUNTY ROAD 47 FOR 3.35 MILES, (5.39 KM) TO THE
AB4812''STATION ON THE RIGHT (WEST).  STATION MARK IS A BRASS DISK IN A
AB4812''SQUARE CONCRETE POST PROJECTING 2 CM ABOVE THE ROAD, 0.6 M SOUTH OF A
AB4812''FIBERGLASS WITNESS POST, 0.15 M EAST OF A BARBED WIRE FENCE, 10.3 M
AB4812''NORTH OF THE CENTER OF A GATE TO A ROAD LEADING WEST AND 7.8 M WEST
AB4812''OF THE CENTER OF A DIRT ROAD (COUNTY ROAD 47).