Notifications
Clear all
GNSS & Geodesy
8
Posts
4
Users
0
Reactions
5
Views
Topic starter
Looking for a data sheet for PID JB1371. Does anyone have a downloaded library of these? NGS obviously isn't running but hoping someone out there may have access to "old" sheets?
?ÿ
Posted : 27/12/2018 6:09 am
geocaching.com
On this site there is a link to search for benchmarks that allows Point ID as a search choice. I have found many datasheets on this site.
Hope it helps.
Happy New Year!
?ÿ
Posted : 27/12/2018 6:52 am
I downloaded all the CA datasheets just before the shutdown, so if anyone needs one, let me know.
Posted : 27/12/2018 7:01 am
Posted : 27/12/2018 7:04 am
JB1371 *********************************************************************** JB1371 DESIGNATION - T 147 JB1371 PID - JB1371 JB1371 STATE/COUNTY- IL/ST CLAIR JB1371 USGS QUAD - O''FALLON (1991) JB1371 JB1371 *CURRENT SURVEY CONTROL JB1371 ___________________________________________________________________ JB1371* NAD 83(1986)- 38 36 00. (N) 089 57 57. (W) SCALED JB1371* NAVD 88 - 171.440 (meters) 562.47 (feet) ADJUSTED JB1371 ___________________________________________________________________ JB1371 GEOID HEIGHT- -30.79 (meters) GEOID99 JB1371 DYNAMIC HT - 171.331 (meters) 562.11 (feet) COMP JB1371 MODELED GRAV- 979,990.6 (mgal) NAVD 88 JB1371 JB1371 VERT ORDER - FIRST CLASS I JB1371 JB1371.The horizontal coordinates were scaled from a topographic map and have JB1371.an estimated accuracy of +/- 6 seconds. JB1371 JB1371.The orthometric height was determined by differential leveling JB1371.and adjusted by the National Geodetic Survey in June 1991. JB1371.WARNING-Repeat measurements at this control monument indicate possible JB1371.vertical movement. JB1371 JB1371.The geoid height was determined by GEOID99. JB1371 JB1371.The dynamic height is computed by dividing the NAVD 88 JB1371.geopotential number by the normal gravity value computed on the JB1371.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JB1371.degrees latitude (g = 980.6199 gals.). JB1371 JB1371.The modeled gravity was interpolated from observed gravity values. JB1371 JB1371; North East Units Estimated Accuracy JB1371;SPC IL W - 214,590. 717,490. MT (+/- 180 meters Scaled) JB1371 JB1371 SUPERSEDED SURVEY CONTROL JB1371 JB1371 NGVD 29 - 171.555 (m) 562.84 (f) ADJ UNCH 1 1 JB1371 JB1371.Superseded values are not recommended for survey control. JB1371.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JB1371.See file dsdata.txt to determine how the superseded data were derived. JB1371 JB1371_MARKER: DB = BENCH MARK DISK JB1371_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JB1371_STAMPING: T 147 1949 JB1371_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JB1371+STABILITY: SURFACE MOTION JB1371 JB1371 HISTORY - Date Condition Recov. By JB1371 HISTORY - 1949 MONUMENTED CGS JB1371 HISTORY - 1969 GOOD NGS JB1371 JB1371 STATION DESCRIPTION JB1371 JB1371''DESCRIBED BY NATIONAL GEODETIC SURVEY 1969 JB1371''3.1 MI W FROM O FALLON. JB1371''ABOUT 3.1 MILES WEST ALONG THE BALTIMORE AND OHIO RAILROAD FROM JB1371''THE STATION AT OFALLON, 70 FEET SOUTHWEST OF THE CENTER OF A JB1371''BLACK TOPPED ROAD CROSSING, 63 FEET WEST OF THE CENTER LINE OF THE JB1371''ROAD, 40.1 FEET SOUTH OF THE SOUTH RAIL, 11 FEET EAST OF MILEPOLE JB1371''323-17, 2 FEET NORTH OF A LINE OF POLES, 1.7 FEET EAST OF A METAL JB1371''WITNESS POST, ABOUT LEVEL WITH THE TRACK AND SET IN THE TOP OF JB1371''A CONCRETE POST PROJECTING 1 INCH ABOVE THE LEVEL OF THE GROUND. JB1371''SEC 22, T 2N, R 8W.
Posted : 27/12/2018 7:05 am
Topic starter
Many Thanks!?ÿ
Posted : 27/12/2018 7:07 am
Note that geocaching has a snapshot from about 2000 and does not update them.?ÿ So you won't find NAD83(2011) coords, geoid updates, or newer marks.
Posted : 27/12/2018 7:20 am
Topic starter
At this point I am mostly interested in the ties to see if it is still there
Posted : 27/12/2018 7:26 am
