Hi Jeff
I've just built an observatory east of Melbourne and was tweaking the system a couple of nights ago. Even though the wind was affecting my viewing I took a look at NGC5363 and think I captured a supernova. Unfortunately the weather is still windy and now, very cloudy down here and I can't corroborate this myself. There is no mention of it in CBAT etc and there are no asteroids or variables listed.
The PSN is about 7 arcsecs south-west of the galactic centre.
If the weather is more clement your way have a look.
Marek