Fregat launcher. Separation of fairing

It is currently envisaged to launch the two Don Quijote Mission spacecraft Hidalgo and Sancho using a Russian Fregat.
Don Quijote is an asteroid-deflecting mission currently under study by ESA’s Advanced Concepts Team (ACT). Its aim is the development of a means to tackle asteroid impacts.
The current scenario envisages two spacecraft in separate interplanetary trajectories. One spacecraft (Hidalgo) will impact an asteroid; the other (Sancho) will arrive earlier at the target asteroid, rendezvous and orbit the asteroid for several months, observing it before and after the impact to detect any changes in its orbit. The artist’s impression shows the separation of the fairing after launch.