  We analyze the photometric data obtained by PLANET and OGLE on the
caustic-crossing binary-lens microlensing event OGLE-2002-BLG-069. Thanks to
the excellent photometric and spectroscopic coverage of the event, we are able
to constrain the lens model up to the known ambiguity between close and wide
binary lenses. The detection of annual parallax in combination with
measurements of extended-source effects allows us to determine the mass,
distance and velocity of the lens components for the competing models. While
the model involving a close binary lens leads to a Bulge-Disc lens scenario
with a lens mass of M=(0.51 +- 0.15) M_sol and distance of D_L=(2.9 +- 0.4)
kpc, the wide binary lens solution requires a rather implausible binary
black-hole lens (M >=126 M_sol). Furthermore we compare current
state-of-the-art numerical and empirical models for the surface brightness
profile of the source, a G5III Bulge giant. We find that a linear
limb-darkening model for the atmosphere of the source star is consistent with
the data whereas a PHOENIX atmosphere model assuming LTE and with no free
parameter does not match our observations.
