The NGS Data Sheet
See file dsdata.pdf for more information about the datasheet.
PROGRAM = datasheet95, VERSION = 8.12.5.18
Starting Datasheet Retrieval...
1 National Geodetic Survey, Retrieval Date = APRIL 20, 2024 00:20:42 EDT
AE3691 ***********************************************************************
AE3691 HT_MOD - This is a Height Modernization Survey Station.
AE3691 DESIGNATION - MT MANSFIELD HIGHEST POINT
AE3691 PID - AE3691
AE3691 STATE/COUNTY- VT/CHITTENDEN
AE3691 COUNTRY - US
AE3691 USGS QUAD - MOUNT MANSFIELD (2018)
AE3691
AE3691 *CURRENT SURVEY CONTROL
AE3691 ______________________________________________________________________
AE3691* NAD 83(2011) POSITION- 44 32 38.20888(N) 072 48 51.51498(W) ADJUSTED
AE3691* NAD 83(2011) ELLIP HT- 1312.145 (meters) (06/27/12) ADJUSTED
AE3691* NAD 83(2011) EPOCH - 2010.00
AE3691* NAVD 88 ORTHO HEIGHT - 1339.69 (meters) 4395.3 (feet) GPS OBS
AE3691 ______________________________________________________________________
AE3691 NAVD 88 orthometric height was determined with geoid model GEOID96
AE3691 GEOID HEIGHT - -27.523 (meters) GEOID96
AE3691 GEOID HEIGHT - -27.475 (meters) GEOID18
AE3691 NAD 83(2011) X - 1,345,632.683 (meters) COMP
AE3691 NAD 83(2011) Y - -4,350,883.274 (meters) COMP
AE3691 NAD 83(2011) Z - 4,452,290.439 (meters) COMP
AE3691 LAPLACE CORR - 3.57 (seconds) DEFLEC18
AE3691
AE3691 Network accuracy estimates per FGDC Geospatial Positioning Accuracy
AE3691 Standards:
AE3691 FGDC (95% conf, cm) Standard deviation (cm) CorrNE
AE3691 Horiz Ellip SD_N SD_E SD_h (unitless)
AE3691 -------------------------------------------------------------------
AE3691 NETWORK 1.62 2.35 0.76 0.51 1.20 -0.17994379
AE3691 -------------------------------------------------------------------
AE3691 Click here for local accuracies and other accuracy information.
AE3691
AE3691.The horizontal coordinates were established by GPS observations
AE3691.and adjusted by the National Geodetic Survey in June 2012.
AE3691
AE3691.NAD 83(2011) refers to NAD 83 coordinates where the reference frame has
AE3691.been affixed to the stable North American tectonic plate. See
AE3691.NA2011 for more information.
AE3691
AE3691.The horizontal coordinates are valid at the epoch date displayed above
AE3691.which is a decimal equivalence of Year/Month/Day.
AE3691
AE3691.The orthometric height was determined by GPS observations and a
AE3691.high-resolution geoid model using precise GPS observation and
AE3691.processing techniques.
AE3691
AE3691.Significant digits in the geoid height do not necessarily reflect accuracy.
AE3691.GEOID18 height accuracy estimate available here.
AE3691
AE3691.Click photographs - Photos may exist for this station.
AE3691
AE3691.The X, Y, and Z were computed from the position and the ellipsoidal ht.
AE3691
AE3691.The Laplace correction was computed from DEFLEC18 derived deflections.
AE3691
AE3691.The ellipsoidal height was determined by GPS observations
AE3691.and is referenced to NAD 83.
AE3691
AE3691. The following values were computed from the NAD 83(2011) position.
AE3691
AE3691; North East Units Scale Factor Converg.
AE3691;SPC VT - 227,128.416 475,022.760 MT 0.99997195 -0 13 13.7
AE3691;SPC VT - 745,170.48 1,558,470.51 sFT 0.99997195 -0 13 13.7
AE3691;UTM 18 - 4,934,614.318 673,627.621 MT 0.99997074 +1 32 00.8
AE3691
AE3691! - Elev Factor x Scale Factor = Combined Factor
AE3691!SPC VT - 0.99979430 x 0.99997195 = 0.99976626
AE3691!UTM 18 - 0.99979430 x 0.99997074 = 0.99976505
AE3691
AE3691_U.S. NATIONAL GRID SPATIAL ADDRESS: 18TXQ7362734614(NAD 83)
AE3691
AE3691 SUPERSEDED SURVEY CONTROL
AE3691
AE3691 NAD 83(2007)- 44 32 38.20923(N) 072 48 51.51567(W) AD(2002.00) 0
AE3691 ELLIP H (02/10/07) 1312.161 (m) GP(2002.00)
AE3691 ELLIP H (06/04/02) 1312.152 (m) GP( ) 4 2
AE3691 NAD 83(1996)- 44 32 38.20952(N) 072 48 51.51631(W) AD( ) 1
AE3691 ELLIP H (09/30/97) 1312.142 (m) GP( ) 4 1
AE3691
AE3691.Superseded values are not recommended for survey control.
AE3691
AE3691.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AE3691.See file dsdata.pdf to determine how the superseded data were derived.
AE3691
AE3691_MARKER: DD = SURVEY DISK
AE3691_SETTING: 66 = SET IN ROCK OUTCROP
AE3691_STAMPING: H 52 1924
AE3691_MARK LOGO: USGS
AE3691_MAGNETIC: N = NO MAGNETIC MATERIAL
AE3691_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
AE3691+STABILITY: POSITION/ELEVATION WELL
AE3691_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
AE3691+SATELLITE: SATELLITE OBSERVATIONS - June 16, 2018
AE3691
AE3691 HISTORY - Date Condition Report By
AE3691 HISTORY - 1924 MONUMENTED USGS
AE3691 HISTORY - 19960821 GOOD VTAT
AE3691 HISTORY - 20050904 GOOD GEOCAC
AE3691 HISTORY - 20180616 GOOD GEOCAC
AE3691
AE3691 STATION DESCRIPTION
AE3691
AE3691'DESCRIBED BY VERMONT AGENCY OF TRANSPORTATION 1996 (DJM)
AE3691'GENERAL LOCATION UNDERHILL, THE TOP OF MOUNT MANSFIELD. TO REACH FROM
AE3691'THE MOUNT MANSFIELD TOLL ROAD AND STATE ROUTE 108, FOLLOW THE TOLL
AE3691'ROAD TO ITS END ABOUT 5 MI (8.0 KM) TO A PARKING AREA AT THE SUMMIT
AE3691'HOUSE, GO NORTH ON FOOT ABOUT 1.6 KM (1.00 MI) (A 1 HR PACK) FOLLOWING
AE3691'THE LONG TRAIL TO THE HIGHEST POINT OF MOUNT MANSFIELD AND TO THE MARK
AE3691'A 10 CM BRASS DISK. THE MARK IS IN FAIR CONDITION, THE ORIGINAL DATUM
AE3691'POINT, A TRIANGLE WITH A CROSS, HAS BEEN OBLITERATED, BUT THE STAMPING
AE3691'CAN STILL BE READ. A CENTER PUNCH WAS MADE BETWEEN THE E AND V IN THE
AE3691'WORD ELEVATION, AND THIS CENTER PUNCH WAS USED AS THE DATUM POINT.
AE3691'THE MARK IS ABOUT 40 CM NORTH OF CGS STATION MT MANSFIELD CHIN, A
AE3691'DRILL HOLE AND CHISLED TRIANGLE.
AE3691
AE3691 STATION RECOVERY (2005)
AE3691
AE3691'RECOVERY NOTE BY GEOCACHING 2005 (DKA)
AE3691'RECOVERED IN GOOD CONDITION.
AE3691
AE3691 STATION RECOVERY (2018)
AE3691
AE3691'RECOVERY NOTE BY GEOCACHING 2018 (CDH)
AE3691'RECOVERED IN GOOD CONDITION.
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