I was hoping to see Tsuchinshan-ATLAS's anti-tail during the orbital plane crossing this evening, but we've got an upper low parked over us so probably not happening. I'll just have to settle for the spectacular view of it in SOHO images this morning.

I'm not the person to do this, but I wonder if you could estimate the response of comet's surface activity during its approach to perihelion from looking at the photometric properties of the anti-tail across SOHO's FOV. It definitely looks like it gets less dense from top left to bottom right.