1 National Geodetic Survey, Retrieval Date = OCTOBER 3, 2005 AJ1910 *********************************************************************** AJ1910 DESIGNATION - POTB POTRERO HILL GRM AJ1910 PID - AJ1910 AJ1910 STATE/COUNTY- CA/SOLANO AJ1910 USGS QUAD - DENVERTON (1980) AJ1910 AJ1910 *CURRENT SURVEY CONTROL AJ1910 ___________________________________________________________________ AJ1910* NAD 83(1998)- 38 12 09.43732(N) 121 56 07.33812(W) ADJUSTED AJ1910* NAVD 88 - 62.1 (meters) 204. (feet) GPS OBS AJ1910 ___________________________________________________________________ AJ1910 EPOCH DATE - 2004.69 AJ1910 X - -2,654,637.226 (meters) COMP AJ1910 Y - -4,258,990.060 (meters) COMP AJ1910 Z - 3,923,160.925 (meters) COMP AJ1910 LAPLACE CORR- -2.21 (seconds) DEFLEC99 AJ1910 ELLIP HEIGHT- 30.07 (meters) (09/13/05) GPS OBS AJ1910 GEOID HEIGHT- -32.13 (meters) GEOID03 AJ1910 AJ1910 HORZ ORDER - A AJ1910 ELLP ORDER - FOURTH CLASS I AJ1910 AJ1910.ITRF positions are available for this station. AJ1910.The horizontal coordinates were established by GPS observations AJ1910.and adjusted by the National Geodetic Survey in September 2005. AJ1910.This is a SPECIAL STATUS position. See SPECIAL STATUS under the AJ1910.DATUM ITEM on the data sheet items page. AJ1910.The horizontal coordinates are valid at the epoch date displayed above. AJ1910.The epoch date for horizontal control is a decimal equivalence AJ1910.of Year/Month/Day. AJ1910 AJ1910.The orthometric height was determined by GPS observations and a AJ1910.high-resolution geoid model. AJ1910 AJ1910.The X, Y, and Z were computed from the position and the ellipsoidal ht. AJ1910 AJ1910.The Laplace correction was computed from DEFLEC99 derived deflections. AJ1910 AJ1910.The ellipsoidal height was determined by GPS observations AJ1910.and is referenced to NAD 83. AJ1910 AJ1910.The geoid height was determined by GEOID03. AJ1910 AJ1910; North East Units Scale Factor Converg. AJ1910;SPC CA 2 - 559,497.455 2,005,660.990 MT 1.00003220 +0 02 26.7 AJ1910;SPC CA 2 - 1,835,617.90 6,580,239.43 sFT 1.00003220 +0 02 26.7 AJ1910;UTM 10 - 4,228,832.306 593,215.028 MT 0.99970701 +0 39 30.5 AJ1910 AJ1910! - Elev Factor x Scale Factor = Combined Factor AJ1910!SPC CA 2 - 0.99999528 x 1.00003220 = 1.00002748 AJ1910!UTM 10 - 0.99999528 x 0.99970701 = 0.99970229 AJ1910 AJ1910 SUPERSEDED SURVEY CONTROL AJ1910 AJ1910 NAD 83(1998)- 38 12 09.43671(N) 121 56 07.33702(W) AD(2002.53) A AJ1910 ELLIP H (02/03/03) 30.08 (m) GP(2002.53) 4 1 AJ1910 NAD 83(1998)- 38 12 09.43631(N) 121 56 07.33599(W) AD(2000.35) A AJ1910 ELLIP H (04/03/01) 30.08 (m) GP(2000.35) 1 1 AJ1910 AJ1910.Superseded values are not recommended for survey control. AJ1910.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AJ1910.See file dsdata.txt to determine how the superseded data were derived. AJ1910 AJ1910_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH9321528832(NAD 83) AJ1910_MARKER: Z = SEE DESCRIPTION AJ1910_SETTING: 0 = UNSPECIFIED SETTING AJ1910_MARK LOGO: NONE AJ1910_MAGNETIC: N = NO MAGNETIC MATERIAL AJ1910_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD AJ1910+STABILITY: POSITION/ELEVATION WELL AJ1910_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AJ1910+SATELLITE: SATELLITE OBSERVATIONS - 2001 AJ1910 AJ1910 HISTORY - Date Condition Report By AJ1910 HISTORY - 2001 MONUMENTED NGS AJ1910 AJ1910 STATION DESCRIPTION AJ1910 AJ1910'DESCRIBED BY NATIONAL GEODETIC SURVEY 2001 AJ1910'THIS IS A CALIFORNIA CORS. AJ1910'THESE COORDINATES ARE FOR THE GEODETIC REFERENCE MARK OF A AJ1910'CALIFORNIA CORS. INFORMATION ABOUT THE GRM, ANTENNA TYPE AJ1910'AND ANTENNA HEIGHT CAN BE FOUND AT THE SOPAC WEBSITE: AJ1910'HTTP://SOPAC.UCSD.EDU/SCRIPTS/SIMPL.CGI 1 National Geodetic Survey, Retrieval Date = OCTOBER 3, 2005 JS2020 *********************************************************************** JS2020 HT_MOD - This is a Height Modernization Survey Station. JS2020 DESIGNATION - X 469 JS2020 PID - JS2020 JS2020 STATE/COUNTY- CA/SOLANO JS2020 USGS QUAD - DENVERTON (1980) JS2020 JS2020 *CURRENT SURVEY CONTROL JS2020 ___________________________________________________________________ JS2020* NAD 83(1992)- 38 11 27.51991(N) 121 53 20.96146(W) ADJUSTED JS2020* NAVD 88 - 18.06 (meters) 59.3 (feet) GPS OBS JS2020 ___________________________________________________________________ JS2020 EPOCH DATE - 1997.30 JS2020 X - -2,651,604.856 (meters) COMP JS2020 Y - -4,261,779.062 (meters) COMP JS2020 Z - 3,922,117.881 (meters) COMP JS2020 LAPLACE CORR- -2.28 (seconds) DEFLEC99 JS2020 ELLIP HEIGHT- -14.10 (meters) (07/10/98) GPS OBS JS2020 GEOID HEIGHT- -32.20 (meters) GEOID03 JS2020 JS2020 HORZ ORDER - FIRST JS2020 VERT ORDER - FIRST CLASS II (See Below) JS2020 ELLP ORDER - FOURTH CLASS I JS2020 JS2020.The horizontal coordinates were established by GPS observations JS2020.and adjusted by the National Geodetic Survey in July 1998. JS2020.The horizontal coordinates are valid at the epoch date displayed above. JS2020.The epoch date for horizontal control is a decimal equivalence JS2020.of Year/Month/Day. JS2020 JS2020.The orthometric height was determined by GPS observations and a JS2020.high-resolution geoid model using precise GPS observation and JS2020.processing techniques. JS2020.The vertical order pertains to the NGVD 29 superseded value. JS2020 JS2020.The X, Y, and Z were computed from the position and the ellipsoidal ht. JS2020 JS2020.The Laplace correction was computed from DEFLEC99 derived deflections. JS2020 JS2020.The ellipsoidal height was determined by GPS observations JS2020.and is referenced to NAD 83. JS2020 JS2020.The geoid height was determined by GEOID03. JS2020 JS2020; North East Units Scale Factor Converg. JS2020;SPC CA 2 - 558,208.864 2,009,710.743 MT 1.00003532 +0 04 11.6 JS2020;SPC CA 2 - 1,831,390.25 6,593,526.00 sFT 1.00003532 +0 04 11.6 JS2020;UTM 10 - 4,227,587.826 597,277.121 MT 0.99971654 +0 41 12.7 JS2020 JS2020! - Elev Factor x Scale Factor = Combined Factor JS2020!SPC CA 2 - 1.00000221 x 1.00003532 = 1.00003753 JS2020!UTM 10 - 1.00000221 x 0.99971654 = 0.99971875 JS2020 JS2020 SUPERSEDED SURVEY CONTROL JS2020 JS2020 NAD 83(1992)- 38 11 27.51969(N) 121 53 20.96218(W) AD(1997.30) 1 JS2020 ELLIP H (03/20/98) -13.99 (m) GP(1997.30) 3 2 JS2020 NGVD 29 (??/??/92) 17.255 (m) 56.61 (f) ADJ UNCH 1 2 JS2020 JS2020.Superseded values are not recommended for survey control. JS2020.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JS2020.See file dsdata.txt to determine how the superseded data were derived. JS2020 JS2020_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEH9727727588(NAD 83) JS2020_MARKER: DB = BENCH MARK DISK JS2020_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JS2020_SP_SET: SET IN TOP OF CONCRETE MONUMENT JS2020_STAMPING: X 469 1951 JS2020_MARK LOGO: CGS JS2020_MAGNETIC: N = NO MAGNETIC MATERIAL JS2020_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JS2020+STABILITY: SURFACE MOTION JS2020_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JS2020+SATELLITE: SATELLITE OBSERVATIONS - February 21, 2005 JS2020 JS2020 HISTORY - Date Condition Report By JS2020 HISTORY - 1951 MONUMENTED CGS JS2020 HISTORY - 1963 GOOD NGS JS2020 HISTORY - 1964 GOOD NGS JS2020 HISTORY - 1988 GOOD USPSQD JS2020 HISTORY - 19970402 GOOD NGS JS2020 HISTORY - 19970716 GOOD NGS JS2020 HISTORY - 20040811 GOOD BESTOR JS2020 HISTORY - 20050221 GOOD NGS JS2020 JS2020 STATION DESCRIPTION JS2020 JS2020'DESCRIBED BY NATIONAL GEODETIC SURVEY 1963 JS2020'2.7 MI S FROM DENVERTON. JS2020'0.6 MILE SOUTHEAST ALONG STATE HIGHWAY 12 FROM CONCRETE BRIDGE JS2020'23-136 OVER DENVERTON CREEK AT DENVERTON, THENCE 2.1 MILES SOUTH JS2020'ALONG SHILOH ROAD, AT A POINT WHERE A POWER LINE CROSSES AND JS2020'RECROSSES THE ROAD, ON THE OUTSIDE AND AT THE NORTH END OF A JS2020'CURVE IN THE ROAD, 134.0 FEET SOUTHEAST OF A T-JUNCTION OF JS2020'FENCES, 23.5 FEET NORTHEAST OF THE CENTERLINE OF THE ROAD, 3.9 JS2020'FEET NORTHWEST OF A POWERLINE POLE WITH TWO GUY WIRES, 3.4 FEET JS2020'SOUTHWEST OF A FENCE LINE, 1.4 FEET SOUTHEAST OF A METAL WITNESS JS2020'POST, ABOUT 1 FOOT HIGHER THAN THE ROAD, AND SET IN THE TOP OF JS2020'A CONCRETE POST PROJECTING 0.2 FOOT ABOVE THE GROUND. JS2020 JS2020 STATION RECOVERY (1964) JS2020 JS2020'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 JS2020'RECOVERED IN GOOD CONDITION. JS2020 JS2020 STATION RECOVERY (1988) JS2020 JS2020'RECOVERY NOTE BY US POWER SQUADRON 1988 (TM) JS2020'RECOVERED IN GOOD CONDITION. JS2020 JS2020 STATION RECOVERY (1997) JS2020 JS2020'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1997 (JDD) JS2020'RECOVERED AS DESCRIBED. JS2020 JS2020 STATION RECOVERY (1997) JS2020 JS2020'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1997 (JDD) JS2020'THE STATION WAS RECOVERED AND OCCUPIED AS PART OF THE SAN JS2020'JOAQUIN-SACRAMENTO RIVER DELTA GPS/VERTICAL PROJECT. JS2020 JS2020 STATION RECOVERY (2004) JS2020 JS2020'RECOVERY NOTE BY BESTOR ENGINEERS INCORPORATED 2004 (MVH) JS2020'RECOVERED IN GOOD CONDITION. JS2020 JS2020 STATION RECOVERY (2005) JS2020 JS2020'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2005 (MEI) JS2020'GPS SUITABILITY IS POOR BECAUSE A POWER POLE IS NOW ONLY 2.2 FT AWAY JS2020'INSTEAD OF 3.9. THE METAL ANGLE IRON (AKA WITNESS) POST IS 1.9 FT TO JS2020'THE NW, LEANS FAR TO THE NORTH AND IS ABOUT 2 FT HIGH. MARK IS IN JS2020'CONCRETE POST FLUSH WITH THE GROUND. THE STATION IS 0.5 MI SOUTH ON JS2020'SHILOH ROAD FROM LITTLE HONKEY BAY RD, A SIDE ROAD LEFT (EAST).