[BenLurkin]

Another question...are there pieces of the shattered comet which have not yet been spotted, and the trajectory of which is therefore unknown?

[alexander_busek]

Being there are two, is there any chance one would pull or set the other off it’s [sic! Should read: its] current path? Could one or the other split again?

The nuclei of comets are generally quite small - on the order of 2-3 km. Their masses are correspondingly low. The gravitational influence of one such body upon another body a few million kms away (which is incredibly close in astronomical terms) is virtually nil. Multiple fragmentation is of course possible.

Another question...are there pieces of the shattered comet which have not yet been spotted, and the trajectory of which is therefore unknown?

Quite possibly. After all: How could we know that that was not the case?

Regards,