from 3 to 11 ${\rm R_{\odot}}$, which explains the inversion of the eclipse depths. The average disk radius of 30 ${\rm R_{\odot}}$ means ${\rm R_{d}/a}$ $\approx$ 0.47, i.e. the disk outer border is just below the tidal radius for the given mass ratio [@1977ApJ...216..822P; @1995CAS....28.....W]. This opens the possibility that at minimum the outer disk, especially optically thin regions that are not tested with our light curve model, becomes influenced by tidal forces. The light contribution of the larger disk explains the shallower primary eclipse observed at the first epochs (red points in Fig.3).

The bright spot is located roughly at the expected region where the stream impacts the disk, 47 apart from the lines joining the stellar centers in the direction of the orbital motion. This position does not change between maximum and minimum. On the contrary, the position of the bright spot changes from 66 to 125from maximum to minimum, as measured in the opposite direction of the orbital motion. At maximum the hot spot temperature is 48% higher than the surrounding disk, at minimum is only 13% higher, in principle consistent with much kinetic energy released in the stream-disk impact region in a smaller disk. At maximum 