Shared Solution

PID: BBBJ40
Designation: 844 1551 A
Stamping: 1551 A 1992
Stability: Monument will probably hold position well
Setting: Retaining wall or concrete ledge
Mark Condition: G
Description: The bench mark is a disk set in a 0.3 m x 0.4 m (1.0 ft x 1.3 ft) concrete base along the NW edge of the T-wharf, 25.3 m (83 ft) NW of the entrance to Sandy Bay Yacht Club, 17 m (55.8 ft) WSW of the NE interior corner of the T-wharf, 0.6 m (2.0 ft) NW of telephone pole #189, and 0.2 m (0.7 ft) above the asphalt pavement.
Observed: 2021-07-01T11:12:00Z more obs 2021-08-09
Source: OPUS - page5 2008.25
Close-up View
REF_FRAME:   NAD_83(2011) EPOCH:   2010.0000 SOURCE:   NAVD88 (Computed using GEOID18) UNITS:  m  SET PROFILE   DETAILS
LAT: 42° 39' 31.22698" ±  0.020   m
LON: -70° 36' 53.97984" ±   0.005   m
ELL HT: -23.593 ±   0.012   m
X: 1559238.019 ±   0.006  m
Y: -4431397.556 ±   0.005  m
Z: 4299677.669 ±   0.021  m
ORTHO HT: 3.140 ±  0.071   m
UTM  19 SPC  2001(MA M)
NORTHING: 4724176.542m 934609.031m
EASTING: 367636.719m 272560.814m
CONVERGENCE: -1.09452500° 0.59448333°
POINT SCALE: 0.99981555 0.99999647
COMBINED FACTOR: 0.99981925 1.00000017
CONTRIBUTED BY
benjamin.gavin
National Oceanic and Atmospheric Administration
Horizon View
The numerical values for this position solution have satisfied the quality control criteria of the National Geodetic Survey. The contributor has verified that the information submitted is accurate and complete.