Adding to other's responses, exploding thing at geostationary orbit is especially bad:
- there is roughly only one such orbit
- because of (a) it is much more limited in terms of amount of spots for satellites distant enough from each other to be considered safe (imagine beads)
- because of orbital mechanics destroying things creates cloud of debris that eventually takes up form roughly similar to torus, embedding original orbit, endangering all other satellites here and threatening to start chain reaction of creating more and more debris from collisions
- this orbit is quite high and atmosphere here is so miniscule it'd take hundreds and thousands of years for that debris to meaningfully slow down and drop to lower trajectories; and junk that got higher orbits will decay even slower. It's not coincidence that graveyard orbit for geostationary satellites is higher
All in all, don't explode things here