1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 AI2165 *********************************************************************** AI2165 SACS - This is a Secondary Airport Control Station. AI2165 DESIGNATION - 5W8 A AI2165 PID - AI2165 AI2165 STATE/COUNTY- NC/CHATHAM AI2165 USGS QUAD - COLERIDGE (1968) AI2165 AI2165 *CURRENT SURVEY CONTROL AI2165 ___________________________________________________________________ AI2165* NAD 83(2001)- 35 42 10.14831(N) 079 30 16.50247(W) ADJUSTED AI2165* NAVD 88 - 180.989 (meters) 593.79 (feet) ADJUSTED AI2165 ___________________________________________________________________ AI2165 X - 944,562.269 (meters) COMP AI2165 Y - -5,098,678.489 (meters) COMP AI2165 Z - 3,701,552.801 (meters) COMP AI2165 LAPLACE CORR- -0.75 (seconds) DEFLEC99 AI2165 ELLIP HEIGHT- 150.57 (meters) (02/10/03) GPS OBS AI2165 GEOID HEIGHT- -30.43 (meters) GEOID99 AI2165 DYNAMIC HT - 180.837 (meters) 593.30 (feet) COMP AI2165 MODELED GRAV- 979,786.4 (mgal) NAVD 88 AI2165 AI2165 HORZ ORDER - FIRST AI2165 VERT ORDER - SECOND CLASS II AI2165 ELLP ORDER - FOURTH CLASS II AI2165 AI2165.This mark is at Siler City Airport (5W8) AI2165 AI2165.The North Carolina/South Carolina HARNS have been completed but, AI2165.due to contractual restrictions, coordinates for these stations AI2165.will NOT be published in the near future. In the interim, the AI2165.published coordinates in North and South Carolina will not be AI2165.consistent with the Continuously Operating Reference Stations AI2165.(CORS). The HARN coordinates for these stations are available AI2165.upon request. Contact Gary Thompson(919-733-3836), or Lewis AI2165.Lapine(803-896-7700). AI2165. AI2165.In addition, the published North and South Carolina positions AI2165.(NAD 83 (1986)) are NOT consistent with those determined in AI2165.adjacent state readjustments. The discontinuity between stations AI2165.located in North or South Carolina and those in adjacent states AI2165.which have been adjusted to the HARN may be as much as 5 AI2165.decimeters. This will result in a significant loss of accuracy AI2165.over lines crossing such state borders. AI2165 AI2165 AI2165.The horizontal coordinates were established by GPS observations AI2165.and adjusted by the National Geodetic Survey in February 2003. AI2165.This is a SPECIAL STATUS position. See SPECIAL STATUS under the AI2165.DATUM ITEM on the data sheet items page. AI2165 AI2165.The orthometric height was determined by differential leveling AI2165.and adjusted by the National Geodetic Survey in August 2000. AI2165.No vertical observational check was made to the station. AI2165 AI2165.The X, Y, and Z were computed from the position and the ellipsoidal ht. AI2165 AI2165.The Laplace correction was computed from DEFLEC99 derived deflections. AI2165 AI2165.The ellipsoidal height was determined by GPS observations AI2165.and is referenced to NAD 83. AI2165 AI2165.The geoid height was determined by GEOID99. AI2165 AI2165.The dynamic height is computed by dividing the NAVD 88 AI2165.geopotential number by the normal gravity value computed on the AI2165.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 AI2165.degrees latitude (g = 980.6199 gals.). AI2165 AI2165.The modeled gravity was interpolated from observed gravity values. AI2165 AI2165; North East Units Scale Converg. AI2165;SPC NC - 216,745.029 563,940.590 MT 0.99990350 -0 17 28.4 AI2165;UTM 17 - 3,952,017.996 635,287.079 MT 0.99982554 +0 52 22.2 AI2165 AI2165 SUPERSEDED SURVEY CONTROL AI2165 AI2165 NAD 83(1995)- 35 42 10.14869(N) 079 30 16.50216(W) AD( ) 1 AI2165 AI2165.Superseded values are not recommended for survey control. AI2165.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AI2165.See file dsdata.txt to determine how the superseded data were derived. AI2165 AI2165_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SPV3528752018(NAD 83) AI2165_MARKER: DH = HORIZONTAL CONTROL DISK AI2165_SETTING: 34 = WINDSOCK BASE AI2165_STAMPING: 5W8 A 1997 AI2165_MARK LOGO: NCGS AI2165_MAGNETIC: N = NO MAGNETIC MATERIAL AI2165_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AI2165+STABILITY: SURFACE MOTION AI2165_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AI2165+SATELLITE: SATELLITE OBSERVATIONS - May 21, 1998 AI2165 AI2165 HISTORY - Date Condition Report By AI2165 HISTORY - 1997 MONUMENTED NCGS AI2165 HISTORY - 19980521 GOOD NCGS AI2165 AI2165 STATION DESCRIPTION AI2165 AI2165'DESCRIBED BY NORTH CAROLINA GEODETIC SURVEY 1998 (JGG) AI2165'STATION IS LOCATED ABOUT 2.5 MI (4.0 KM) WEST-SOUTHWEST OF SILER CITY AI2165'AND 5.0 MI (8.0 KM) WEST-NORTHWEST OF MT VERNON SPRINGS, AT THE SILER AI2165'CITY MUNICIPAL AIRPORT. ALONG SR 1100 (AIRPORT RD) FOR 1.55 MI (2.49 AI2165'KM) SOUTH FROM SR 1107 (OLD US 64), AT THE SILER CITY MUNICIPAL AI2165'AIRPORT, SOUTHEAST OF THE OPERATIONS BUILDING, IN THE SOUTHWEST CORNER AI2165'OF A 2.5-FOOT SQUARE CONCRETE FOUNDATION FOR OLD WINDSOCK. MARK AI2165'PROJECTS 2 INCHES ABOVE THE GROUND. LOCATED 202.0 FT (61.6 M) AI2165'SOUTHEAST OF THE CENTERLINE OF THE RUNWAY, 137.5 FT (41.9 M) AI2165'NORTH-NORTHWEST OF WINDSOCK POLE, AND 38.8 SOUTHWEST OF A REFERENCE AI2165'TAG CEMENTED TO SOUTHWEST CORNER OF CONCRETE PAD. THIS STATION IS AI2165'DESIGNATED AS A SECONDARY AIRPORT CONTROL STATION. 1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 EZ1385 *********************************************************************** EZ1385 CBN - This is a Cooperative Base Network Control Station. EZ1385 DESIGNATION - GUNTER EZ1385 PID - EZ1385 EZ1385 STATE/COUNTY- NC/CHATHAM EZ1385 USGS QUAD - PITTSBORO (1981) EZ1385 EZ1385 *CURRENT SURVEY CONTROL EZ1385 ___________________________________________________________________ EZ1385* NAD 83(1986)- 35 43 09.82760(N) 079 09 14.02853(W) ADJUSTED EZ1385* NAVD 88 - 127.668 (meters) 418.86 (feet) ADJUSTED EZ1385 ___________________________________________________________________ EZ1385 LAPLACE CORR- -5.25 (seconds) DEFLEC99 EZ1385 GEOID HEIGHT- -31.11 (meters) GEOID99 EZ1385 DYNAMIC HT - 127.562 (meters) 418.51 (feet) COMP EZ1385 MODELED GRAV- 979,796.9 (mgal) NAVD 88 EZ1385 EZ1385 HORZ ORDER - FIRST EZ1385 VERT ORDER - SECOND CLASS II EZ1385 EZ1385.The North Carolina/South Carolina HARNS have been completed but, EZ1385.due to contractual restrictions, coordinates for these stations EZ1385.will NOT be published in the near future. In the interim, the EZ1385.published coordinates in North and South Carolina will not be EZ1385.consistent with the Continuously Operating Reference Stations EZ1385.(CORS). The HARN coordinates for these stations are available EZ1385.upon request. Contact Gary Thompson(919-733-3836), or Lewis EZ1385.Lapine(803-896-7700). EZ1385. EZ1385.In addition, the published North and South Carolina positions EZ1385.(NAD 83 (1986)) are NOT consistent with those determined in EZ1385.adjacent state readjustments. The discontinuity between stations EZ1385.located in North or South Carolina and those in adjacent states EZ1385.which have been adjusted to the HARN may be as much as 5 EZ1385.decimeters. This will result in a significant loss of accuracy EZ1385.over lines crossing such state borders. EZ1385 EZ1385 EZ1385.The horizontal coordinates were established by GPS observations EZ1385.and adjusted by the National Geodetic Survey in July 1986. EZ1385 EZ1385.The orthometric height was determined by differential leveling EZ1385.and adjusted by the National Geodetic Survey in June 1991. EZ1385 EZ1385.The Laplace correction was computed from DEFLEC99 derived deflections. EZ1385 EZ1385.The geoid height was determined by GEOID99. EZ1385 EZ1385.The dynamic height is computed by dividing the NAVD 88 EZ1385.geopotential number by the normal gravity value computed on the EZ1385.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 EZ1385.degrees latitude (g = 980.6199 gals.). EZ1385 EZ1385.The modeled gravity was interpolated from observed gravity values. EZ1385 EZ1385; North East Units Scale Converg. EZ1385;SPC NC - 218,478.944 595,677.643 MT 0.99990581 -0 05 19.8 EZ1385;UTM 17 - 3,954,397.013 666,981.599 MT 0.99994360 +1 04 40.9 EZ1385 EZ1385: Primary Azimuth Mark Grid Az EZ1385:SPC NC - JESSIE 102 31 37.9 EZ1385:UTM 17 - JESSIE 101 21 37.2 EZ1385 EZ1385|---------------------------------------------------------------------| EZ1385| PID Reference Object Distance Geod. Az | EZ1385| dddmmss.s | EZ1385| EZ1386 JESSIE APPROX. 0.7 KM 1022618.1 | EZ1385|---------------------------------------------------------------------| EZ1385 EZ1385 SUPERSEDED SURVEY CONTROL EZ1385 EZ1385 NAD 27 - 35 43 09.30306(N) 079 09 14.97637(W) AD( ) 2 EZ1385 NGVD 29 - 127.895 (m) 419.60 (f) ADJ UNCH 2 2 EZ1385 EZ1385.Superseded values are not recommended for survey control. EZ1385.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. EZ1385.See file dsdata.txt to determine how the superseded data were derived. EZ1385 EZ1385_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SPV6698254397(NAD 83) EZ1385_MARKER: DE = TRAVERSE STATION DISK EZ1385_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT EZ1385_STAMPING: GUNTER 1973 EZ1385_MARK LOGO: NCGS EZ1385_MAGNETIC: O = OTHER; SEE DESCRIPTION EZ1385_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO EZ1385+STABILITY: SURFACE MOTION EZ1385_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR EZ1385+SATELLITE: SATELLITE OBSERVATIONS - February 14, 2002 EZ1385 EZ1385 HISTORY - Date Condition Report By EZ1385 HISTORY - 1973 MONUMENTED NCGS EZ1385 HISTORY - 1974 GOOD NCGS EZ1385 HISTORY - 1985 GOOD NCGS EZ1385 HISTORY - 19950111 GOOD NCGS EZ1385 HISTORY - 20020214 GOOD NCGS EZ1385 EZ1385 STATION DESCRIPTION EZ1385 EZ1385'DESCRIBED BY NORTH CAROLINA GEODETIC SURVEY 1973 (JWC) EZ1385'GUNTER IS A N. C. GEODETIC SURVEY TRAVERSE STATION ESTABLISHED IN EZ1385'THE VICINITY OF PITTSBORO, NORTH CAROLINA. EZ1385' EZ1385'GUNTER IS LOCATED APPROXIMATELY 1.3 MILE EAST OF PITTSBORO. TO EZ1385'REACH STATION FROM THE COURTHOUSE IN PITTSBORO. PROCEED EASTERLY EZ1385'ALONG U.S. 64 FOR 1.35 MILES TO THE INTERSECTION WITH SR 1701, EZ1385'AND STATION ON LEFT NEAR A PP BETWEEN U.S. 64 AND SR 1701. EZ1385' EZ1385'STATION MARK IS A STANDARD N. C. BRASS TRAVERSE DISK, STAMPED EZ1385'GUNTER 1973, SET IN THE TOP OF A CONCRETE CYLINDER, THE TOP OF EZ1385'WHICH IS FLUSH WITH THE GROUND. EZ1385' EZ1385'MARK IS 54.9 FT NNE OF C/L OF U.S. 64 EZ1385' EZ1385'164.5 FT ESE OF EAST EDGE OF CROSSOVER BETWEEN U.S. 64 AND SR 1701 EZ1385' EZ1385'164.4 FT SE OF SW CORNER OF 1 STORY BRICK HOUSE EZ1385' EZ1385'2.7 FT S OF PP W/ALUMINUM REF. TAG EZ1385' EZ1385'154.7 FT WNW OF PP WITH TRANSFORMER AND W/ALUMINUM REF. TAG EZ1385' EZ1385'103.6 FT ESE OF WESTERNMOST PP W/ALUMINUM REF. TAG EZ1385 EZ1385 STATION RECOVERY (1974) EZ1385 EZ1385'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1974 EZ1385'1.3 MI E FROM PITTSBORO. EZ1385'TO REACH STATION FROM THE COURTHOUSE IN PITTSBORO, PROCEED EZ1385'EASTERLY ALONG U.S. 64 FOR 1.35 MILES TO THE INTERSECTION WITH EZ1385'SR 1701, AND STATION ON LEFT NEAR A PP BETWEEN U.S. 64 AND SR 1701, EZ1385'54.9 FT NNE OF C/L OF U.S. 64, 164.5 FT ESE OF EAST EDGE OF EZ1385'CROSSOVER BETWEEN U.S. 64 AND SR 1701, 164.4 FT SE OF SW CORNER EZ1385'OF 1 STORY BRICK HOUSE, 2.7 FT SOUTH OF PP WITH ALUMINUM REF. TAG, EZ1385'154.7 FT WNW OF PP WITH TRANSFORMER AND WITH ALUMINUM REF. TAG, EZ1385'AND 103.6 FT ESE OF WESTERNMOST PP WITH ALUMINUM REF. TAG. EZ1385'DISK IS SET IN TOP OF CONCRETE CYLINDER, THE TOP OF WHICH IS EZ1385'FLUSH WITH THE GROUND. EZ1385 EZ1385 STATION RECOVERY (1985) EZ1385 EZ1385'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1985 (EWB) EZ1385'THE STATION WAS RECOVERED AT THIS DATE. EZ1385'DESCRIPTION IS ADEQUATE EXCEPT FOR THE FOLLOWING CORRECTIONS. EZ1385' EZ1385'MARK IS LOCATED 10.1 METERS (33.0 FT) SOUTHWEST OF THE CENTERLINE EZ1385'OF SR 1701, 50.1 METERS (164.4 FT) SOUTH OF THE SOUTHWEST CORNER OF EZ1385'A ONE STORY BRICK HOUSE, AND 31.6 METERS (103.6 FT) EAST-SOUTHEAST EZ1385'OF WEST MOST POWER POLE (4369) WITH A TRANSFORMER AND A REFERENCE EZ1385'TAG. EZ1385 EZ1385 STATION RECOVERY (1995) EZ1385 EZ1385'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1995 (JGG) EZ1385'STATION IS LOCATED ABOUT 1.3 MI (2.1 KM) EAST OF PITTSBORO. ALONG US EZ1385'64 FOR 1.35 MI (2.17 KM) EAST OF THE COURTHOUSE IN PITTSBORO, AT SR EZ1385'1701, IN A GRASS MEDIAN. MARK IS FLUSH WITH THE GROUND. LOCATED 54.9 EZ1385'FT (16.7 M) NORTH-NORTHEAST OF THE CENTERLINE OF US 64, 164.5 FT (50.1 EZ1385'M) EAST-SOUTHEAST OF THE EAST EDGE OF CROSSOVER BETWEEN US 64 AND SR EZ1385'1701, 164.4 FT (50.1 M) SOUTH-SOUTHEAST OF THE SOUTHWEST CORNER OF A EZ1385'SINGLE STORY BRICK HOUSE, 149.7 FT (45.6 M) EAST-SOUTHEAST OF A METAL EZ1385'STORM DRAIN--AND 2.7 FT (0.8 M) SOUTH OF A POWER POLE, 154.7 FT (47.2 EZ1385'M) WEST-NORTHWEST OF A POWER POLE WITH A TRANSFORMER, 106.4 FT (32.4 EZ1385'M) SOUTHEAST OF TELEPHONE PEDESTAL NUMBER RP20S BESIDE A POWER POLE EZ1385'WITH A TRANSFORMER--ALL THREE WITH REFERENCE TAGS. EZ1385 EZ1385 STATION RECOVERY (2002) EZ1385 EZ1385'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 2002 (EWB) EZ1385'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 AB6828 *********************************************************************** AB6828 CBN - This is a Cooperative Base Network Control Station. AB6828 PACS - This is a Primary Airport Control Station. AB6828 DESIGNATION - SILERPORT AB6828 PID - AB6828 AB6828 STATE/COUNTY- NC/CHATHAM AB6828 USGS QUAD - COLERIDGE (1968) AB6828 AB6828 *CURRENT SURVEY CONTROL AB6828 ___________________________________________________________________ AB6828* NAD 83(2001)- 35 41 55.80876(N) 079 30 30.86237(W) ADJUSTED AB6828* NAVD 88 - 181.763 (meters) 596.33 (feet) ADJUSTED AB6828 ___________________________________________________________________ AB6828 X - 944,254.379 (meters) COMP AB6828 Y - -5,098,998.447 (meters) COMP AB6828 Z - 3,701,194.344 (meters) COMP AB6828 LAPLACE CORR- -0.74 (seconds) DEFLEC99 AB6828 ELLIP HEIGHT- 151.34 (meters) (01/30/03) GPS OBS AB6828 GEOID HEIGHT- -30.43 (meters) GEOID99 AB6828 DYNAMIC HT - 181.610 (meters) 595.83 (feet) COMP AB6828 MODELED GRAV- 979,786.0 (mgal) NAVD 88 AB6828 AB6828 HORZ ORDER - B AB6828 VERT ORDER - SECOND CLASS II AB6828 ELLP ORDER - FOURTH CLASS II AB6828 AB6828.This mark is at Siler City Airport (5W8) AB6828.This mark is at Johnston County Airport (JNX) AB6828 AB6828.The North Carolina/South Carolina HARNS have been completed but, AB6828.due to contractual restrictions, coordinates for these stations AB6828.will NOT be published in the near future. In the interim, the AB6828.published coordinates in North and South Carolina will not be AB6828.consistent with the Continuously Operating Reference Stations AB6828.(CORS). The HARN coordinates for these stations are available AB6828.upon request. Contact Gary Thompson(919-733-3836), or Lewis AB6828.Lapine(803-896-7700). AB6828. AB6828.In addition, the published North and South Carolina positions AB6828.(NAD 83 (1986)) are NOT consistent with those determined in AB6828.adjacent state readjustments. The discontinuity between stations AB6828.located in North or South Carolina and those in adjacent states AB6828.which have been adjusted to the HARN may be as much as 5 AB6828.decimeters. This will result in a significant loss of accuracy AB6828.over lines crossing such state borders. AB6828 AB6828 AB6828.The horizontal coordinates were established by GPS observations AB6828.and adjusted by the National Geodetic Survey in January 2003. AB6828.This is a SPECIAL STATUS position. See SPECIAL STATUS under the AB6828.DATUM ITEM on the data sheet items page. AB6828 AB6828.The orthometric height was determined by differential leveling AB6828.and adjusted by the National Geodetic Survey in August 2000. AB6828.No vertical observational check was made to the station. AB6828 AB6828.The X, Y, and Z were computed from the position and the ellipsoidal ht. AB6828 AB6828.The Laplace correction was computed from DEFLEC99 derived deflections. AB6828 AB6828.The ellipsoidal height was determined by GPS observations AB6828.and is referenced to NAD 83. AB6828 AB6828.The geoid height was determined by GEOID99. AB6828 AB6828.The dynamic height is computed by dividing the NAVD 88 AB6828.geopotential number by the normal gravity value computed on the AB6828.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 AB6828.degrees latitude (g = 980.6199 gals.). AB6828 AB6828.The modeled gravity was interpolated from observed gravity values. AB6828 AB6828; North East Units Scale Converg. AB6828;SPC NC - 216,304.969 563,577.370 MT 0.99990295 -0 17 36.7 AB6828;UTM 17 - 3,951,570.683 634,932.902 MT 0.99982436 +0 52 13.5 AB6828 AB6828: Primary Azimuth Mark Grid Az AB6828:SPC NC - SILERPORT AZ MK 031 33 33.4 AB6828:UTM 17 - SILERPORT AZ MK 030 23 43.2 AB6828 AB6828|---------------------------------------------------------------------| AB6828| PID Reference Object Distance Geod. Az | AB6828| dddmmss.s | AB6828| AI1838 G 5 272.684 METERS 00128 | AB6828| AI1797 SILERPORT AZ MK APPROX. 1.4 KM 0311556.7 | AB6828|---------------------------------------------------------------------| AB6828 AB6828 SUPERSEDED SURVEY CONTROL AB6828 AB6828 NAD 83(1986)- 35 41 55.81573(N) 079 30 30.87007(W) AD( ) 1 AB6828 NAD 83(1995)- 35 41 55.80914(N) 079 30 30.86206(W) AD( ) B AB6828 ELLIP HT - 151.35 (m) (09/11/96) GP( ) 4 1 AB6828 AB6828.Superseded values are not recommended for survey control. AB6828.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AB6828.See file dsdata.txt to determine how the superseded data were derived. AB6828 AB6828_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SPV3493351571(NAD 83) AB6828_MARKER: DH = HORIZONTAL CONTROL DISK AB6828_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AB6828_STAMPING: SILERPORT 1989 AB6828_MARK LOGO: NCGS AB6828_PROJECTION: FLUSH AB6828_MAGNETIC: O = OTHER; SEE DESCRIPTION AB6828_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AB6828+STABILITY: SURFACE MOTION AB6828_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AB6828+SATELLITE: SATELLITE OBSERVATIONS - May 21, 1998 AB6828 AB6828 HISTORY - Date Condition Report By AB6828 HISTORY - 1989 MONUMENTED NCGS AB6828 HISTORY - 19890725 GOOD NCGS AB6828 HISTORY - 19950207 GOOD NCGS AB6828 HISTORY - 19971215 GOOD NCGS AB6828 HISTORY - 19980521 GOOD NCGS AB6828 AB6828 STATION DESCRIPTION AB6828 AB6828'DESCRIBED BY NORTH CAROLINA GEODETIC SURVEY 1989 (EWB) AB6828'STATION IS LOCATED ABOUT 4.84 KM (3.00 MI) WEST-SOUTHWEST OF SILER AB6828'CITY AT THE SILER CITY MUNICIPAL AIRPORT. ALONG SR 1100 (AIRPORT ROAD) AB6828'FOR 2.5 KM (1.55 MI) SOUTH FROM SR 1107- OLD US 64 (ON THE WEST SIDE AB6828'OF SILER CITY) TO THE AIRPORT, IN THE TURN-AROUND AT THE SOUTH END OF AB6828'THE RUNWAY. MARK IS 2 FEET (0.6 M) LOWER THAN RUNWAY AND FLUSH WITH AB6828'GROUND. LOCATED 17.45 M (57.25 FT) NORTHWEST OF THE CENTERLINE OF AB6828'RUNWAY, 31.80 M (104.33 FT) SOUTH OF THE CENTERLINE OF RUNWAY AB6828'TURN-AROUND, 32.40 M (106.30 FT) EAST OF A STORM DRAIN IN MIDDLE OF AB6828'TURNAROUND, 11.23 M (36.84 FT) SOUTHWEST OF A WHITE RUNWAY LIGHT, AND AB6828'1.20 M (3.94 FT) NORTHEAST OF A WITNESS POST. AB6828 AB6828 STATION RECOVERY (1995) AB6828 AB6828'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1995 (JGG) AB6828'STATION IS LOCATED ABOUT 4.84 KM (3.00 MI) WEST-SOUTHWEST OF SILER AB6828'CITY AT THE SILER CITY MUNICIPAL AIRPORT. ALONG SR 1100 (AIRPORT ROAD) AB6828'FOR 2.5 KM (1.55 MI) SOUTH FROM SR 1107 (OLD US 64-ON THE WEST SIDE OF AB6828'SILER CITY) AT THE AIRPORT, IN THE TURN-AROUND AT THE SOUTH END OF THE AB6828'RUNWAY. MARK IS 2-FEET LOWER THAN RUNWAY AND FLUSH WITH GROUND. AB6828'LOCATED 17.45 M (57.25 FT) NORTHWEST OF THE CENTERLINE OF THE RUNWAY, AB6828'31.70 M (104.00 FT) SOUTH OF THE CENTERLINE OF RUNWAY TURN-AROUND, AB6828'32.40 M (106.30 FT) EAST OF A STORM DRAIN IN MIDDLE OF TURN-AROUND, AB6828'11.23 M (36.84 FT) SOUTHWEST OF A WHITE RUNWAY LIGHT, AND 1.20 M (3.94 AB6828'FT) NORTHEAST OF A WITNESS POST. AB6828 AB6828 STATION RECOVERY (1997) AB6828 AB6828'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1997 (JGG) AB6828'RECOVERED AS DESCRIBED. AB6828 AB6828 STATION RECOVERY (1998) AB6828 AB6828'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1998 (JGG) AB6828'RECOVERED AS DESCRIBED. THIS STATION IS DESIGNATED AS THE PRIMARY AB6828'AIRPORT CONTROL STATION. 1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 AI1797 *********************************************************************** AI1797 SACS - This is a Secondary Airport Control Station. AI1797 DESIGNATION - SILERPORT AZ MK AI1797 PID - AI1797 AI1797 STATE/COUNTY- NC/CHATHAM AI1797 USGS QUAD - COLERIDGE (1968) AI1797 AI1797 *CURRENT SURVEY CONTROL AI1797 ___________________________________________________________________ AI1797* NAD 83(2001)- 35 42 33.78718(N) 079 30 02.58815(W) ADJUSTED AI1797* NAVD 88 - 186.906 (meters) 613.21 (feet) ADJUSTED AI1797 ___________________________________________________________________ AI1797 X - 944,829.606 (meters) COMP AI1797 Y - -5,098,201.378 (meters) COMP AI1797 Z - 3,702,147.871 (meters) COMP AI1797 LAPLACE CORR- -0.82 (seconds) DEFLEC99 AI1797 ELLIP HEIGHT- 156.48 (meters) (02/10/03) GPS OBS AI1797 GEOID HEIGHT- -30.42 (meters) GEOID99 AI1797 DYNAMIC HT - 186.748 (meters) 612.69 (feet) COMP AI1797 MODELED GRAV- 979,786.7 (mgal) NAVD 88 AI1797 AI1797 HORZ ORDER - FIRST AI1797 VERT ORDER - SECOND CLASS II AI1797 ELLP ORDER - FOURTH CLASS II AI1797 AI1797.This mark is at Siler City Airport (5W8) AI1797 AI1797.The North Carolina/South Carolina HARNS have been completed but, AI1797.due to contractual restrictions, coordinates for these stations AI1797.will NOT be published in the near future. In the interim, the AI1797.published coordinates in North and South Carolina will not be AI1797.consistent with the Continuously Operating Reference Stations AI1797.(CORS). The HARN coordinates for these stations are available AI1797.upon request. Contact Gary Thompson(919-733-3836), or Lewis AI1797.Lapine(803-896-7700). AI1797. AI1797.In addition, the published North and South Carolina positions AI1797.(NAD 83 (1986)) are NOT consistent with those determined in AI1797.adjacent state readjustments. The discontinuity between stations AI1797.located in North or South Carolina and those in adjacent states AI1797.which have been adjusted to the HARN may be as much as 5 AI1797.decimeters. This will result in a significant loss of accuracy AI1797.over lines crossing such state borders. AI1797 AI1797 AI1797.The horizontal coordinates were established by GPS observations AI1797.and adjusted by the National Geodetic Survey in February 2003. AI1797.This is a SPECIAL STATUS position. See SPECIAL STATUS under the AI1797.DATUM ITEM on the data sheet items page. AI1797 AI1797.The orthometric height was determined by differential leveling AI1797.and adjusted by the National Geodetic Survey in August 2000. AI1797.No vertical observational check was made to the station. AI1797 AI1797.The X, Y, and Z were computed from the position and the ellipsoidal ht. AI1797 AI1797.The Laplace correction was computed from DEFLEC99 derived deflections. AI1797 AI1797.The ellipsoidal height was determined by GPS observations AI1797.and is referenced to NAD 83. AI1797 AI1797.The geoid height was determined by GEOID99. AI1797 AI1797.The dynamic height is computed by dividing the NAVD 88 AI1797.geopotential number by the normal gravity value computed on the AI1797.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 AI1797.degrees latitude (g = 980.6199 gals.). AI1797 AI1797.The modeled gravity was interpolated from observed gravity values. AI1797 AI1797; North East Units Scale Converg. AI1797;SPC NC - 217,471.739 564,294.019 MT 0.99990440 -0 17 20.4 AI1797;UTM 17 - 3,952,751.679 635,625.646 MT 0.99982667 +0 52 30.8 AI1797 AI1797: Primary Azimuth Mark Grid Az AI1797:SPC NC - SILERPORT 211 33 33.6 AI1797:UTM 17 - SILERPORT 210 23 42.4 AI1797 AI1797|---------------------------------------------------------------------| AI1797| PID Reference Object Distance Geod. Az | AI1797| dddmmss.s | AI1797| AB6828 SILERPORT APPROX. 1.4 KM 2111613.2 | AI1797|---------------------------------------------------------------------| AI1797 AI1797 SUPERSEDED SURVEY CONTROL AI1797 AI1797 NAD 83(1995)- 35 42 33.78756(N) 079 30 02.58784(W) AD( ) 1 AI1797 ELLIP HT - 156.49 (m) (12/23/99) GP( ) 4 2 AI1797 NAD 83(1986)- 35 42 33.79403(N) 079 30 02.59551(W) AD( ) 2 AI1797 AI1797.Superseded values are not recommended for survey control. AI1797.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AI1797.See file dsdata.txt to determine how the superseded data were derived. AI1797 AI1797_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SPV3562652752(NAD 83) AI1797_MARKER: DZ = AZIMUTH MARK DISK AI1797_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AI1797_STAMPING: SILERPORT 1989 AI1797_MARK LOGO: NCGS AI1797_MAGNETIC: O = OTHER; SEE DESCRIPTION AI1797_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AI1797+STABILITY: SURFACE MOTION AI1797_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AI1797+SATELLITE: SATELLITE OBSERVATIONS - May 21, 1998 AI1797 AI1797 HISTORY - Date Condition Report By AI1797 HISTORY - 1989 MONUMENTED NCGS AI1797 HISTORY - 19980521 GOOD NCGS AI1797 AI1797 STATION DESCRIPTION AI1797 AI1797'DESCRIBED BY NORTH CAROLINA GEODETIC SURVEY 1989 (EWB) AI1797'STATION IS LOCATED ABOUT 3.66 KM (2.25 MI) WEST-SOUTHWEST OF SILER AI1797'CITY AT THE SILER MUNICIPAL AIRPORT. ALONG SR 1100 (AIRPORT ROAD) FOR AI1797'2.5 KM (1.55 MI) SOUTH FROM SR 1107- OLD US 64 (ON WEST SIDE OF SILER AI1797'CITY) TO THE AIRPORT, AND STATION AT THE NORTH END OF RUNWAY. MARK IS AI1797'1 FOOT (0.3 M) LOWER THAN RUNWAY AND FLUSH WITH GROUND. LOCATED 17.7 M AI1797'(58.1 FT) NORTHWEST OF THE CENTERLINE OF RUNWAY, 14.4 M (47.2 FT) AI1797'WEST-SOUTHWEST OF CENTERLINE OF THE RUNWAY TURN-AROUND AND THE WEST AI1797'EDGE OF RUNWAY, 45.2 M (148.3 FT) SOUTH OF THE SOUTH END OF A AI1797'HEADWALL, 79.25 M (260.01 FT) NORTH OF THE WEST VASI LIGHT, 3.65 M AI1797'(11.98 FT) SOUTHWEST OF A BLUE RUNWAY LIGHT WITH CONCRETE BASE, AND AI1797'81.85 M (268.54 FT) SOUTH-SOUTHWEST OF A STORM DRAIN IN CENTER OF AI1797'TURN-AROUND. AI1797 AI1797 STATION RECOVERY (1998) AI1797 AI1797'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1998 (JGG) AI1797'RECOVERED AS DESCRIBED. THIS STATION IS DESIGNATED AS A SECONDARY AI1797'AIRPORT CONTROL STATION.