  The main alternatives of the recent XENON1T observation are solar axions,
neutrino magnetic moment and tritium. In this short note we suggest to
crosscheck whether the observation is related or not to dark matter (DM)
streams, by searching for planetary dependence of the observed excess. If such
a correlation is derived, this hint (<3.5sigma) can become the overlooked
direct DM discovery. To do this it is necessary to analyze the time
distribution of all the XENON1T data, and in particular the electronic events
with their time stamp and energy. Notably, the velocities of the dark sector
allow for planetary focusing effects towards the earth either by a single
celestial body or combined by the whole solar system. Surprisingly, as yet this
possibility has not been applied in the field of direct dark matter search,
even though DM velocities fit-in well planetary gravitational lensing effects.
The widely used signature of a direct dark matter search needs to be redefined,
while, with luck, such an analysis might confirm or exclude the solar origin of
the observed excess. Therefore, we suggest that XENON1T and DAMA release the
data.
