( ASPRS) ɡ Clifford J. Mugnier,. : http://www.asprs.org/resources/grids/
- :
:
http://cid-0259cb4f889eaeb3.skydrive...Egypt%20AR.pdf
:
http://cid-0259cb4f889eaeb3.skydrive...20KSA%20AR.pdf
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1798 . 10 : (a) = 6375738.7 (1/f) = 334.29 Bonne . 1808.
1907 1898 1907 1907. () . 1898 1907 .
1929 1907 :
- : = 27 o 30 o (Scale factor) (mo) = 1.0 = 700 = 200 1000 .
- : 31 o 30 o (Scale factor) (mo) = 1.0 = 615 = 810 1000 .
- : 35 o 30 o (Scale factor) (mo) = 1.0 = 300 = 100 1000 .
1930 " 1930" New Egypt Datum 1930 1906 . . EG30 . .