Bibcode
Birlan, M.; Nedelcu, D. A.; Lainey, V.; Arlot, J.-E.; Binzel, R. P.; Bus, S. J.; Rayner, J.; Thuillot, W.; Vaduvescu, O.; Colas, F.
Referencia bibliográfica
Astronomische Nachrichten, Vol.329, Issue 6, p.567-572
Fecha de publicación:
7
2008
Número de citas
5
Número de citas referidas
4
Descripción
Observations of the predicted occultation between the satellites Miranda
and Oberon were performed on 2007 July 30. Data analysis reveals that
the predicted magnitude drop for this phenomenon was overestimated and
we establish an upper limit of 0fm05 for the phenomenon, perhaps due to
a non-lambertian limb scattering. The new astrometry obtained from this
run is in good agreement with the LA06 numerical model and these new
data will improve the dynamical models of the Uranus system. The paper
concludes with an uncertainty analysis on the parameters for the event,
determined by the uncertainty of the magnitude drop of about 0.04 mag,
and the difficulty to observe mutual phenomena between satellites in the
Uranian system.