Changeset 5344 in ntrip


Ignore:
Timestamp:
Aug 19, 2013, 4:12:08 PM (8 years ago)
Author:
weber
Message:

Transformation to DREF91 added

File:
1 edited

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  • trunk/BNC/src/bnchelp.html

    r5339 r5344  
    21192119<li>SIRGAS2000 which stands for the Geodetic Datum adopted for Brazil, and</li>
    21202120<li>SIRGAS95 which stands for the Geodetic Datum adopted i.e. for Venezuela, and</li>
     2121<li>DREF91 which stands for the Geodetic Datum adopted for Germany, and</li>
    21212122<li>'Custom' which allows a transformation of Broadcast Corrections from the IGS08 system to any other system through specifying up to 14 Helmert Transformation Parameters.</li>
    21222123</ul>
     
    22522253Scale rate: -0.000000000000 /y
    22532254To: 1995.4
     2255</pre>
     2256</p>
     2257
     2258<p>
     2259<u>DREF91:</u> The formulas for the transformation 'ITRF2008-&gt;DREF91' are provided by Peter Franke, BKG. The following 14 Helmert Transformation Parameters were introduced:
     2260</p>
     2261<p>
     2262<pre>
     2263Translation in X at epoch To: -0.0118 m
     2264Translation in Y at epoch To:  0.1432 m
     2265Translation in Z at epoch To: -0.1117 m
     2266Translation rate in X:  0.0001 m/y
     2267Translation rate in Y:  0.0001 m/y
     2268Translation rate in Z: -0.0018 m/y
     2269Rotation in X at epoch To:   3.291 mas
     2270Rotation in Y at epoch To:   6.190 mas
     2271Rotation in Z at epoch To: -11.012 mas
     2272Rotation rate in X:  0.081 mas/y
     2273Rotation rate in Y:  0.490 mas/y
     2274Rotation rate in Z: -0.792 mas/y
     2275Scale at epoch To : 0.00000001224
     2276Scale rate: 0.00000000008 /y
     2277To: 2000.0
    22542278</pre>
    22552279</p>
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