Magnetic tape, magnetic tape cartridge, and magnetic tape apparatus

A magnetic tape comprising:

• a non-magnetic support;
• and
• a magnetic layer including ferromagnetic powder and a binding agent,
• wherein the magnetic layer has a timing-based servo pattern,
• wherein an edge shape of the timing-based servo pattern, specified by magnetic force microscopy is a shape in which a difference L99.9−L0.1 between a value L99.9 of a cumulative distribution function of 99.9% and a value L0.1 of a cumulative distribution function of 0.1% in a position deviation width from an ideal shape of the magnetic tape in a longitudinal direction is 180 nm or less,
• wherein a difference S0.5−S13.5 between a spacing S0.5 measured, after n-hexane cleaning, on a surface of the magnetic layer under a pressure of 0.5 atm by optical interferometry and a spacing S13.5 measured, after n-hexane cleaning, on a surface of the magnetic layer under a pressure of 13.5 atm by optical interferometry is 3.0 nm or less, and
• wherein S0.5 is 5.0 nm or more.