Positional Data of Mars as measured by Tycho Brahe

Does any one know how the original data of the mars positions given in
Tycho's notebooks (Brahe, Tycho. Edited by I.L.E. DreyerTychonis Brahe Dani
Opera Omnia. (in Latin) Vol 1-15. 1913-1929.) are organized?
The declination data is clear to me, but every astronomy textbook refers to
POSITIONAL data of Tycho which
would also include rectascension data. Kepler used Tycho's data for
determining the orbit of mars, therefore it
would be interesting which data he exactly had for deriving his first law.
Wayne Pafko has an very interesting site on the declination measurements of
Tycho (www.pafko.com/tycho/index.html)
but he also did not give any information about the rectanscension values.

Any ideas?

Rainer Minixhofer