Two independent observers filmed the same event on 17th March:
http://www.slate.com/blogs/bad_astronomy/2016/03/29/jupiter_hit_by_asteroid_or_comet_in_march_2016.html
Annoyingly it was 24 hours before I took a few hours of almost continuous video of Jupiter.
Mark
...the impacts from SL-9 left marks on Jupiter that lasted quite a while.