  This is a preliminary analysis of the orbital parameters of the well known
eclipsing symbiotic binary, SY Muscae. It is a system composed of a white dwarf
(WD) and a red giant (RG), located in the southern sky. With the use of
photometric data in the infrared (IR) bands and radial velocities (RV) for the
RG, we determine physical parameters of the object, such as masses and radii.
We use PHOEBE tools to model all the observations.
