TRAPPIST bright comets production rates: 62P/Tsuchinshan 1, 103P/Hartley, 144P/Kushida, and 12P/Pons-Brooks

The authors report that they obtained from TRAPPIST-South and TRAPPIST-North robotic telescopes (Jehin et al. 2011) recent observations under clear skies using cometary HB narrowband band gaseous and dust continuum filters (Farnham et al. 2000) for the following comets and computed preliminary production rates at 10.000 km using a Haser Model (Vp=Vd=1km/s) (Haser 1957).