The NGS Data Sheet See file dsdata.pdf for more information about the datasheet. PROGRAM = datasheet95, VERSION = 8.12.5.14 Starting Datasheet Retrieval... 1 National Geodetic Survey, Retrieval Date = APRIL 18, 2023 DR8781 *********************************************************************** DR8781 DESIGNATION - OHGA GEAUGA BASE ARP DR8781 PID - DR8781 DR8781 STATE/COUNTY- OH/GEAUGA DR8781 COUNTRY - US DR8781 USGS QUAD - GARRETTSVILLE (2016) DR8781 DR8781 *CURRENT SURVEY CONTROL DR8781 ______________________________________________________________________ DR8781* NAD 83(2011) POSITION- 41 22 12.90706(N) 081 04 24.65976(W) ADJUSTED DR8781* NAD 83(2011) ELLIP HT- 300.608 (meters) (03/23/23) ADJUSTED DR8781* NAD 83(2011) EPOCH - 2010.00 DR8781 ______________________________________________________________________ DR8781 GEOID HEIGHT - -33.826 (meters) GEOID18 DR8781 NAD 83(2011) X - 743,830.364 (meters) COMP DR8781 NAD 83(2011) Y - -4,735,679.288 (meters) COMP DR8781 NAD 83(2011) Z - 4,193,567.593 (meters) COMP DR8781 LAPLACE CORR - -1.08 (seconds) DEFLEC18 DR8781 DR8781 Network accuracy estimates per FGDC Geospatial Positioning Accuracy DR8781 Standards: DR8781 FGDC (95% conf, cm) Standard deviation (cm) CorrNE DR8781 Horiz Ellip SD_N SD_E SD_h (unitless) DR8781 ------------------------------------------------------------------- DR8781 NETWORK 0.20 0.51 0.07 0.09 0.26 -0.01192423 DR8781 ------------------------------------------------------------------- DR8781 Click here for local accuracies and other accuracy information. DR8781 DR8781 DR8781.The horizontal coordinates were established by GPS observations DR8781.and adjusted by the OH DEPT OF TRANSP in March 2023. DR8781 DR8781.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has DR8781.been affixed to the stable North American tectonic plate. See DR8781.NA2011 for more information. DR8781 DR8781.The horizontal coordinates are valid at the epoch date displayed above DR8781.which is a decimal equivalence of Year/Month/Day. DR8781 DR8781.Significant digits in the geoid height do not necessarily reflect accuracy. DR8781.GEOID18 height accuracy estimate available here. DR8781 DR8781.Click photographs - Photos may exist for this station. DR8781 DR8781.The X, Y, and Z were computed from the position and the ellipsoidal ht. DR8781 DR8781.The Laplace correction was computed from DEFLEC18 derived deflections. DR8781 DR8781.The ellipsoidal height was determined by GPS observations DR8781.and is referenced to NAD 83. DR8781 DR8781. The following values were computed from the NAD 83(2011) position. DR8781 DR8781; North East Units Scale Factor Converg. DR8781;SPC OH N - 190,153.917 719,332.396 MT 0.99995305 +0 56 13.7 DR8781;SPC OH N - 623,863.31 2,360,009.70 sFT 0.99995305 +0 56 13.7 DR8781;UTM 17 - 4,579,862.474 493,851.870 MT 0.99960047 -0 02 54.9 DR8781 DR8781! - Elev Factor x Scale Factor = Combined Factor DR8781!SPC OH N - 0.99995285 x 0.99995305 = 0.99990590 DR8781!UTM 17 - 0.99995285 x 0.99960047 = 0.99955334 DR8781 DR8781_U.S. NATIONAL GRID SPATIAL ADDRESS: 17TMF9385179862(NAD 83) DR8781 DR8781 SUPERSEDED SURVEY CONTROL DR8781 DR8781.No superseded survey control is available for this station. DR8781 DR8781_MARKER: Z = SEE DESCRIPTION DR8781_SETTING: 36 = SET IN A MASSIVE STRUCTURE DR8781_SP_SET: ANTENNA REFERENCE POINT DR8781_MAGNETIC: N = NO MAGNETIC MATERIAL DR8781_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL DR8781_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR DR8781+SATELLITE: SATELLITE OBSERVATIONS - October 17, 2022 DR8781 DR8781 HISTORY - Date Condition Report By DR8781 HISTORY - 20190516 MONUMENTED OHDT DR8781 HISTORY - 20221017 SEE DESCRIPTION OHDT DR8781 DR8781 STATION DESCRIPTION DR8781 DR8781'DESCRIBED BY OHIO DEPARTMENT OF TRANSPORTATION 2022 (DJB) DR8781'THE STATION IS LOCATED ABOUT 10.2 KM (6.3 MI) SOUTH OF MIDDLEFIELD, DR8781'9.8 KM (6.1 MI) NORTH-NORTHEAST OF GARRETTSVILLE AND 8.7 KM (5.4 MI) DR8781'WEST-SOUTHWEST OF WEST FARMINGTON. DR8781' DR8781'THE STATION IS THE ANTENNA REFERENCE POINT OF THE GNSS ANTENNA. DR8781'STATION IS LOCATED ON TOP OF A REPURPOSED ANTENNA TOWER, TO THE WEST DR8781'OF THE BUILDING WITHIN THE WWTP FACILITY TO THE WEST OF PARKMAN, OHIO. DR8781'TO REACH FROM THE JUNCTION OF US 422 W, GO WEST ON US 422 W FOR 0.32 DR8781'KM (0.20 MI) TO THE ENTRANCE TO THE WWTP ON THE LEFT, WITH THE STATION DR8781'JUST WEST OF THE ONE STORY BUILDING WITHIN THE SECURED FACILITY.