Possible Supernova PSN J13540068-0755438 in NGC 5339 Narrowfield L - March 3, 2013

Possible Supernova PSN J13540068-0755438 in NGC 5339 Narrowfield L - March 3, 2013, a photo by Joseph Brimacombe on Flickr.

Via Flickr:
SUMMARY
SN seen immediately north-east of the nucleus at Mag 14.7 L.
DISCOVERY
Giancarlo Cortini: 2013.3.3.141; Mag 14.7
TECHNICAL INFORMATION
Total exposure 31 min (62 x 0.5 min, luminance. filter; binned 3x3, scale 1.37 asec/px)
Time: 2013.3.3.520
Astrometry: RA 13 54 00.66 Dec -07 55 44.1
Photometry: 14.65 +/- 0.07 L (V for ref)
These data were collected remotely using a 51-cm RCOS and STL11K camera at New Mexico Skies, Mayhill, New Mexico by Joseph Brimacombe, Coral Towers Observatory, Cairns, Australia.
FITS file available on request from jbrimaco@bigpond.net.au