Experimental evidence of the Phobos magnetic field

The detailed analysis of the disturbances of the magnetic field near Phobos has been carried out. Two types of the force lines have been found. Some of them correspond to the force lines of the solar wind disturbed by the obstacle. Others are related to Phobos. The character and the direction of the disturbances give the strong evidence for the existence of the magnetic field and the magnetosphere of Phobos. Assuming a dipole approximation, the value of the magnetic field of Phobos on its surface is $0.6$ G. It is comparable to the value of the magnetic field on a surface of the Earth.