National Geodetic Survey, Retrieval Date = JULY 16, 2000 FZ2592 *********************************************************************** FZ2592 DESIGNATION - NORTH CAROLINA CORNER FZ2592 PID - FZ2592 FZ2592 STATE/COUNTY- NC/ASHE FZ2592 USGS QUAD - GRAYSON (1976) FZ2592 FZ2592 *CURRENT SURVEY CONTROL FZ2592 ___________________________________________________________________ FZ2592* NAD 83(1986)- 36 35 17.38598(N) 081 40 38.82394(W) ADJUSTED FZ2592* NAVD 88 - 1410.7 (meters) 4628. (feet) VERTCON FZ2592 ___________________________________________________________________ FZ2592 LAPLACE CORR- 2.60 (seconds) DEFLEC99 FZ2592 GEOID HEIGHT- -30.78 (meters) GEOID99 FZ2592 FZ2592 HORZ ORDER - SECOND FZ2592 FZ2592.The North Carolina/South Carolina HARNS have been completed but, FZ2592.due to contractual restrictions, coordinates for these stations FZ2592.will NOT be published in the near future. In the interim, the FZ2592.published coordinates in North and South Carolina will not be FZ2592.consistent with the Continuously Operating Reference Stations FZ2592.(CORS). The HARN coordinates for these stations are available FZ2592.upon request. Contact Gary Thompson(919-733-3836), or Lewis FZ2592.Lapine(803-896-7700). FZ2592. FZ2592.In addition, the published North and South Carolina positions FZ2592.(NAD 83 (1986)) are NOT consistent with those determined in FZ2592.adjacent state readjustments. The discontinuity between stations FZ2592.located in North or South Carolina and those in adjacent states FZ2592.which have been adjusted to the HARN may be as much as 5 FZ2592.decimeters. This will result in a significant loss of accuracy FZ2592.over lines crossing such state borders. FZ2592 FZ2592 FZ2592.The horizontal coordinates were established by classical geodetic methods FZ2592.and adjusted by the National Geodetic Survey in February 1991. FZ2592 FZ2592.The NAVD 88 height was computed by applying the VERTCON shift value to FZ2592.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) FZ2592 FZ2592.The Laplace correction was computed from DEFLEC99 derived deflections. FZ2592 FZ2592.The geoid height was determined by GEOID99. FZ2592 FZ2592; North East Units Scale Converg. FZ2592;SPC NC - 318,100.143 369,991.974 MT 1.00014496 -1 32 43.2 FZ2592;SPC VA S - 1,033,064.848 3,215,694.831 MT 1.00003719 -1 55 42.5 FZ2592;UTM 17 - 4,049,401.067 439,399.126 MT 0.99964524 -0 24 13.7 FZ2592 FZ2592|---------------------------------------------------------------------| FZ2592| PID Reference Object Distance Geod. Az | FZ2592| dddmmss.s | FZ2592| NORTH CAROLINA CORNER RM 2 174.252 METERS 21433 | FZ2592| NORTH CAROLINA CORNER RM 3 18.743 METERS 21758 | FZ2592|---------------------------------------------------------------------| FZ2592 FZ2592 SUPERSEDED SURVEY CONTROL FZ2592 FZ2592 NGVD 29 - 1410.7 (m) 4628. (f) VERT ANG FZ2592 FZ2592.Superseded values are not recommended for survey control. FZ2592.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. FZ2592.See file dsdata.txt to determine how the superseded data were derived. FZ2592 FZ2592_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO FZ2592+STABILITY: SURFACE MOTION FZ2592 FZ2592 HISTORY - Date Condition Recov. By FZ2592 HISTORY - UNK MONUMENTED FZ2592 HISTORY - 1979 GOOD NCGS FZ2592 FZ2592 STATION DESCRIPTION FZ2592 FZ2592'DESCRIBED BY NORTH CAROLINA GEODETIC SURVEY 1979 (ESL) FZ2592'THE STATION AND REFERENCE MARK 2 WERE RECOVERED AS DESCRIBED. FZ2592'REFERENCE MARK 3 MAY HAVE BEEN MOVED IN THAT THE DIRECTION DIFFERS FZ2592'BY 43 MINUTES AND DISTANCE WAS SHORTER BY 1.823 METERS (6.0 FEET) THE FZ2592'DIRECTION TO RM 2 AGREEED TO VALUES TRAVERSED IN FROM GLENN 1934, BUT FZ2592'NOT TO THE PUBLISHED AZIMUTH TO GLENN. AT GLENN 1934 ADDITIONAL FZ2592'OBSERVATIONS TO FEATHER CAMP FIRE LOOKOUT TOWER AND AN ASTRO FZ2592'OBSERVATION (1971-1972-PROJECT G-14799) AGREED WITH EACH OTHER WITHIN FZ2592'1.1 SECONDS, BUT DISAGREED WITH THE PUBLISHED AZIMUTH TO NORTH FZ2592'CAROLINA CORNER BY 29 SECONDS. THE DISTANCE BETWEEN N.C. CORNER AND FZ2592'CORNER--AND GLENN WAS MEASURED AND UNLIKE THE MEASUREMENT OF 1971 THE FZ2592'NEW READING AGREED WITHIN 1.2 CM OF THE PUBLISHED VALUE. LASTLY THE FZ2592'DISTANCE FROM--NORTH CAROLINA CORNER--TO REFERENCE MARK 2 AGREED WITHI FZ2592'6 CM (0.2 FEET) AS A SLOPE DISTANCE. THE 575.75 FEET MEASURED IN 1934 FZ2592'MUST HAVE BEEN SLOPE FOR THERE WAS 19.78 METER DIFFERENCE IN ELEVATION FZ2592'RESULTING IN 14 CM REDUCTION TO HORIZONTAL. IT IS BELIEVED THAT--NORTH FZ2592'CAROLINA CORNER--SHOULD BE REPOSITIONED BASED ON NEW DIRECTIONS.