Great Pyramid orientation

Just on the offchance that these are of interest to anyone, I was looking up details in the size and orientation of the Great Pyramid in answer to a query on one of the email lists, and found the two following sites, which might be useful:

http://www.kheraha.co.uk/cole.html

Determination of the Exact Size and Orientation of the Great Pyramid of Giza, by J.H. Cole B.A., (Cantab), F.R.G.S.. Survey of Egypt Paper no.39, Government Press Cairo.

http://www.ronaldbirdsall.com/gizeh/

http://www.ronaldbirdsall.com/gizeh/errata/levels.html

A table including Petrie's originally hand written corrections to data about the courses of the Great Pyramid in Petrie's The Pyramids and Temples of Gizeh: "Two original copies of the book were compared to resolve numbers of poor legibility. Corrections which have been incorporated are described in the annotations at the bottom of the table, as are other observations of note. For convenience, annotated courses are indicated by an asterisk following the course number. The column presenting course thickness variation for all four corners has been estimated from the thickness graphs of Plate 8. All other thickness values have been computed from the course levels." See the above URLs for the full explanation.