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Details for Benchmark: DG0597

N 33° 47.514 W 084° 23.272 (NAD 83)

Altitude: 912.95

Coordinates may not be exact. Altitude is ADJUSTED and location is ADJUSTED. (more info)

Location:
In FULTON county, GA View Original Datasheet
Designation:
N 20
Marker Type:
survey disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

Reference Points

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Documented History (by the NGS)

01/01/1973 by MARTA (MONUMENTED)
DESCRIBED BY METRO ATLANTA RTA 1973 SET A STD. MARTA BRASS DISC ON THE WEST SIDE OF WEST PEACHTREE AND 17TH ST. IN FRONT OF EASTER SEAL SOCIETY AT 1362 W. PEACHTREE.
01/01/1973 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1973 AT ATLANTA. A STANDARD MARTA BRASS DISK DRILLED INTO THE SIDEWALK ON THE WEST SIDE OF WEST PEACHTREE ST. IN FRONT OF THE EASTER SEAL SOCIETY, 1362 WEST PEACHTREE ST. ABOUT 2.6 MILES NORTH OF DOWNTOWN FIVE POINTS, 4.5 FEET NORTH OF THE NORTH CURBLINE OF 17TH ST. EXTENDED FROM THE EAST, 3.5 FEET WEST OF THE WEST CURBLINE OF WEST PEACHTREE ST. THE DISK IS SET FLUSH WITH THE SIDEWALK.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in September 1997.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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