  On 10 June 2012, an Earth-grazer meteor which lasted over 17 s with an
absolute magnitude of -4.0 $\pm$ 0.5 was observed over Spain. This work focuses
on the analysis of this rare event which is, to our knowledge, the faintest
Earth-grazing meteor reported in the scientific literature, but also the first
one belonging to a meteor shower. Thus, the orbital parameters show that the
parent meteoroid belonged to the Daytime $\zeta$-Perseid meteoroid stream.
According to our calculations, the meteor was produced by a meteoroid with an
initial mass ranging between 115 and 1.5 kg. During its encounter with Earth,
the particle travelled about 510 km in the atmosphere. Around 260 g were
destroyed in the atmosphere during the luminous phase of the event as a
consequence of the ablation process. The modified orbit of the remaining
material, which left our planet with a fusion crust, is also calculated.
