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Details for Benchmark: AB2647

N 44° 54.367 W 067° 00.400 (NAD 83)

Altitude: 46.6

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

Location:
In WASHINGTON county, ME View Original Datasheet
Designation:
EPM B
Marker Type:
horizontal control disk
Setting:
in rock outcrop
Stability:
Most reliable and expected to hold position/elevation well.

Reference Points

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Documented History (by the NGS)

01/01/1995 by CHANCE (MONUMENTED)
DESCRIBED BY JE CHANCE AND ASSOCIATES 1995 (DS) THE STATION IS LOCATED AT THE TOWN OF EASTPORT AT THE EASTPORT MUNICIPAL AIRPORT. OWNERSHIP--WASHINGTON COUNTY, BOB KENNEDY, FBO, PHONE (207) 853-0997 TO REACH THE STATION FROM THE INTERSECTION OF U.S. HWY 1 AND STATE HWY 190 SOUTH OF PERRY, PROCEED SOUTH-SOUTHEAST FOR 8.8 KM (5.45 MI) ON STATE HWY 190 TO THE AIRPORT ACCESS ROAD. TURN RIGHT AND PROCEED WEST TO THE AIRPORT OFFICE. CONTINUE SOUTHWEST ON TAXIWAY FOR 0.5 KM (0.30 MI) CROSSING RUNWAY 15-33. TURN LEFT AND PROCEED SOUTHEAST ALONG SOUTHWEST SIDE OF RUNWAY 15-33 TO THE END OF THE RUNWAY AND THE STATION ON THE RIGHT ATOP A KNOLL THE STATION IS A STANDARD NGS DISK SET FLUSH IN A MASSIVE ROCK OUTCROP AT TOP OF KNOLL THAT IS ABOUT 70 METERS (229.7 FT) SOUTHWEST OF SOUTHWEST CORNER OF RUNWAY 15-33. THE STATION IS LOCATED 37.36 M (122.57 FT) NORTHEAST FROM SOUTHERNMOST POWERPOLE ALONG ROAD TO WEST, 33.70 M (110.56 FT) WEST-SOUTHWEST FROM 12TH METAL FENCE POST, 60.6 M (198.8 FT) SOUTH-SOUTHWEST FROM WESTERNMOST (RUNWAY END INDICATOR LIGHT) REIL, AND 82.6 M (271.0 FT) SOUTH-SOUTHWEST FROM CENTERLINE END OF RUNWAY THIS STATION IS DESIGNATED AS A SECONDARY AIRPORT CONTROL STATI0N (SACS) - MAINE ANA SURVEYS 1995
07/08/1996 by CHANCE (GOOD)
RECOVERY NOTE BY JE CHANCE AND ASSOCIATES 1996 (CS) THE STATION IS LOCATED AT THE TOWN OF EASTPORT AT THE EASTPORT MUNICIPAL AIRPORT. OWNERSHIP--WASHINGTON COUNTY, BOB KENNEDY, FBO, PHONE (207) 853-0997 TO REACH THE STATION FROM THE INTERSECTION OF U.S. HWY 1 AND STATE HWY 190 SOUTH OF PERRY, PROCEED SOUTH-SOUTHEAST FOR 8.8 KM (5.45 MI) ON STATE HWY 190 TO THE AIRPORT ACCESS ROAD. TURN RIGHT AND PROCEED WEST TO THE AIRPORT OFFICE. CONTINUE SOUTHWEST ON TAXIWAY FOR 0.5 KM (0.30 MI) CROSSING RUNWAY 15-33. TURN LEFT AND PROCEED SOUTHEAST ALONG SOUTHWEST SIDE OF RUNWAY 15-33 TO THE END OF THE RUNWAY AND THE STATION ON THE RIGHT ATOP A KNOLL THE STATION IS A STANDARD NGS DISK SET FLUSH IN A MASSIVE ROCK OUTCROP AT TOP OF KNOLL THAT IS ABOUT 70 METERS (229.7 FT) SOUTHWEST OF SOUTHWEST CORNER OF RUNWAY 15-33. THE STATION IS LOCATED 37.36 M (122.57 FT) NORTHEAST FROM SOUTHERNMOST POWERPOLE ALONG ROAD TO WEST, 33.70 M (110.56 FT) WEST-SOUTHWEST FROM 12TH METAL FENCE POST, 60.6 M (198.8 FT) SOUTH-SOUTHWEST FROM WESTERNMOST (RUNWAY END INDICATOR LIGHT) REIL, AND 82.6 M (271.0 FT) SOUTH-SOUTHWEST FROM CENTERLINE END OF RUNWAY THIS STATION IS DESIGNATED AS A SECONDARY AIRPORT CONTROL STATI0N (SACS) - MAINE ANA SURVEYS 1995

Control Text

  • This mark is at Eastport Airport (EPM)
  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in July 1997.
  • The orthometric height was determined by GPS observations and a high-resolution geoid model.
  • GPS derived orthometric heights for airport stations designated as PACS or SACS are published to 2 decimal places. This maintains centimeter relative accuracy between the PACS and SACS. It does not indicate centimeter accuracy relative to other marks which are part of the NAVD 88 network.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • The geoid height was determined by GEOID99.

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