  ESA's Flyeye telescope is designed with a very large field of view (FoV) in
order to scan the sky for unknown near-Earth Objects (NEOs). For typical
exposure times of 40 s, the telescope is able to detect objects with a limiting
magnitude up to 21.5. The aim is to observe those NEOs that are going to hit
the Earth within a few weeks or days, in advance of impact. In order to
estimate the detection rate of NEOs with the Flyeye telescope, a synthetic
population of Earth threatening asteroids is created by means of the software
NEOPOP. Then, the true anomalies and longitudes of the ascending node of these
objects are modified in order to generate about 2500 impactors. In the
simulations almost three impacts can be detected per year from NEOs down to 1 m
using only one Flyeye telescope. When operating two telescopes simultaneously,
one at Monte Mufara and one at La Silla, four detected impacts per year are
expected. Nonetheless, it is estimated that about 15.6% of the Earth impactors
will be very difficult to be detected using ground-based telescopes due to the
fact that they are approaching us from the Sun.
