MY0536 ***********************************************************************
MY0536  DESIGNATION -  D 12 MAGS
MY0536  PID         -  MY0536
MY0536  STATE/COUNTY-  MA/SUFFOLK
MY0536  USGS QUAD   -
MY0536
MY0536                         *CURRENT SURVEY CONTROL
MY0536  ___________________________________________________________________
MY0536* NAD 83(1986)-  42 20 34.     (N)    071 05 07.     (W)     SCALED
MY0536* NAVD 88     -         3.772  (meters)      12.38   (feet)  ADJUSTED
MY0536  ___________________________________________________________________
MY0536  GEOID HEIGHT-         -27.79  (meters)                     GEOID99
MY0536  DYNAMIC HT  -           3.771 (meters)      12.37  (feet)  COMP
MY0536  MODELED GRAV-     980,376.8   (mgal)                       NAVD 88
MY0536
MY0536  VERT ORDER  -  FIRST     CLASS II
MY0536
MY0536.The horizontal coordinates were scaled from a topographic map and have
MY0536.an estimated accuracy of +/- 6 seconds.
MY0536
MY0536.The orthometric height was determined by differential leveling
MY0536.and adjusted by the National Geodetic Survey in June 1991.
MY0536
MY0536.The geoid height was determined by GEOID99.
MY0536
MY0536.The dynamic height is computed by dividing the NAVD 88
MY0536.geopotential number by the normal gravity value computed on the
MY0536.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
MY0536.degrees latitude (g = 980.6199 gals.).
MY0536
MY0536.The modeled gravity was interpolated from observed gravity values.
MY0536
MY0536;                    North         East    Units  Estimated Accuracy
MY0536;SPC MA M     -   899,230.      234,170.      MT  (+/- 180 meters Scaled)
MY0536
MY0536                          SUPERSEDED SURVEY CONTROL
MY0536
MY0536  NGVD 29     -         4.019  (m)           13.19   (f) ADJ UNCH    1 2
MY0536
MY0536.Superseded values are not recommended for survey control.
MY0536.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
MY0536.See file dsdata.txt to determine how the superseded data were derived.
MY0536
MY0536_MARKER: DD = SURVEY DISK
MY0536_SETTING: 36 = BUILDING
MY0536_STAMPING: D 12 MASS GS 1936 13.195
MY0536_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
MY0536
MY0536  HISTORY     - Date     Condition        Recov. By
MY0536  HISTORY     - 1936     MONUMENTED       MAGS
MY0536  HISTORY     - 1965     GOOD             NGS
MY0536  HISTORY     - 1978     GOOD             NGS
MY0536
MY0536                          STATION DESCRIPTION
MY0536
MY0536''DESCRIBED BY NATIONAL GEODETIC SURVEY 1965
MY0536''AT BOSTON.
MY0536''AT BOSTON, IN BACK BAY DIVISION, ALONG MASSACHUSETTS AVENUE NEAR
MY0536''THE INTERSECTION OF HUNTINGTON AVENUE, AT THE HORTICULTURAL HALL
MY0536''AT 300 MASSACHUSETTS AVENUE, SET IN THE TOP OF A 4 INCH STEP OF
MY0536''THE SOUTHEAST ONE OF THREE DOORWAYS ON THE SOUTHWEST SIDE OF THE
MY0536''BUILDING, 18.4 FEET NORTHEAST OF THE NORTHEAST CURB OF MASS. AVE.,
MY0536''110.9 FEET NORTHWEST OF THE NORTHWEST CURB OF HUNTINGTON AVENUE,
MY0536''0.6 FOOT NORTHEAST OF THE SOUTHWEST EDGE OF THE STEP AND ABOUT
MY0536''4 INCHES ABOVE THE LEVEL OF THE SIDEWALK.
MY0536
MY0536                          STATION RECOVERY (1978)
MY0536
MY0536''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978
MY0536''RECOVERED IN GOOD CONDITION.