438
June 2015
PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING
The
Prußischen Landestriangulation
Datum origin is
at Rauenberg where: Φ
o
= 52° 27′ 12.0210′′ N, Λ
o
= 31° 02′
04.9280′′ (East of Ferro), and the azimuth from Rauenberg to
Berlin-Marienkirche, a
o
= 19° 46′ 04.87′′
(Bulletin géodésique,
Juillet-août-septembre 1936, page 232)
.
Original German triangulation stations of the
“Reichsdreiecknets”
and the
“Landesdreiecknetze”
adjusted
and unified into a provisional
Reichsfestpunktfeld
with the
origin Potsdam,
Helmertturn
on Bessel spheroid where: Φ
o
=
52° 22′ 54.81′′ N, Λ
o
= 13° 04′ 01.725′′ East of Greenwich and
the azimuth to Golmberg, whose value is α
o
= 154° 47′ 33.61′′
(Geodetic Analysis of the M745 Series 1:50,000 Scale Maps
of Germany, Eugene De Bor, Army Map Service Geodetic
Memorandum No. 1584, April 1965)
.
The
Berliner Sternwarte
was the origin for the
Prußischen
Landesaufnahme
Soldner from 1822–1876. In 1879, the
Prußischen Landesaufnahme
Soldner utilized a new origin
at the
Helmertturm
in Potsdam. However, the
Prußischen
Landestriangulation
used the
Berliner Sternwarte
from
1832–1923. The Old Bavarian Datum of 1801 was the
reference origin for the
Bayern (München)
Soldner from
1802–1873 as well as the
Rheinpfalz (Mannheim)
Soldner
from 1819–1911. Note that
Mannheim Sternwarte
is easy to
find with Google Earth™ at:
f
= 49° 29′ 11′′ N, λ = 08° 27′ 35′′
E. Furthermore, the Old Bavarian Datum of 1801 was also
used for the
Wurttemburg (Tubingen)
Soldner from 1792–
1841. Afterwards, the new datum used was the
Helmertturm
in Potsdam from 1841–1923. The
Berliner Sternwarte
datum
of 1832 was used for the
Saxonia (Großenhain)
Soldner from
1862–1923.
The Old Bavarian datum of 1801 was used for the
Baden
(Mannheim)
Topographic Soldner from 1824–1923, the
Baden (Mannheim)
Forest Soldner from 1846–1923, and the
Baden (Mannheim)
Cadaster Soldner from 1841–1923. The
Potsdam Helmertturm
datum was used for the
Oldenburg
(Bremerle)
Soldner from 1835–1923, and the
Göttingen
datum of 1820 was used for both the
Hannover (Göttingen)
Soldner from 1866–1923 as well as the
KurfurstentumHessen
(Kassel)
Soldner from 1821–1899.
The Potsdam Helmertturm
datum was used for the
Hessen-Darmstadt
Soldner from
1808–1923 and for the
Herzogtum Nassau (Schaumburg)
Soldner from 1862–1923. The
Potsdam Helmertturm
datum
was used for the
Hessen–Darmstadt
Soldner from 1808–
1923 as well as the
Herzogtum Nassau (Schaumburg)
from
1863–1923, the
Elsaß–Lothringen (Sausheim)
1889–1923,
the
Elsaß–Lothringen (Delmen)
1889–1923, The Hamburg
Soldner 1887–1923, the
Schwarzburg–Sondershausen
Soldner and the
Schwarzburg–Sondershausen Prußischen
Landestriangulation
1851–1923, and the
Thüringen
(Seeberg)
Soldner from 1848–1923, and the
Thüringen
(Seeberg) Prußischen Landestriangulation
1880–1923.
(Dipl.-Ing. Heinz W. Kloos, personal communications 1981-
1982)
For all of these Grids, there were multiple periods in
which the first usages were local Cartesian systems with no
geodetic position, later updated to a geographic position at
the Grid origin but computed on an equivalent sphere, and
finally updated to ellipsoidal positions for final adjustments
and calculations. Note that most of these systems fell into
disuse in 1923 when everything began to be coordinated into
a Reich-wide unified triangulation net as discussed above,
but the original Cadastral coordinates may be of interest to
real property owners.
The 40 Prussian Cassini-Soldner origin points used for
the Prussian Land Survey and Cadaster established as of
1879 are: 1.
Kucklinsberg
–
f
= 54° 27′ 36.8055′′ N, λ = 39°
37′ 18.3505′′ E; 2.
Paulinen
–
f
= 54° 17′ 21.1583′′ N, λ = 38°
23′ 59.3555′′ E; 3.
Markushof I
–
f
= 54° 03′ 31.728′′ N, λ =
37° 02′ 24.369′′ E; 4.
Turmberg
–
f
= 54° 13′ 31.8753′′ N, l =
35° 47′ 32.4975′′ E; 5.
Kauernick I
–
f
= 54° 13′ 31.8753′′ N,
λ = 35° 47′ 32.4975′′ E; 6.
Thorn (Rathausturm)
–
f
= 53°
00′ 42.5371′′ N, λ = 36° 16′ 26.1154′′ E; 7.
Heinrichsthal
–
f
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