Possible Supernova PSN J10100472-1146352 in NGC 3139 Narrowfield L andIR - April 28, 2013

Possible Supernova PSN J10100472-1146352 in NGC 3139 Narrowfield L and IR - April 28, 2013, a photo by Joseph Brimacombe on Flickr.

Via Flickr:
SUMMARY
SN seen north-west of the nucleus at Mag 17.99 L and 17.66 IR. Faded by 0.65 Mag IR in 48 hours.
DISCOVERY
Catalina Real-Time Transient Survey and Stan Howerton: 2013.4.25.450; Mag 18.2
TECHNICAL INFORMATION
Total exposure 80 min (9 x 5 min L, 8 x 5 min IR; binned 2x2, scale 0.91 asec/px)
Time: 2013.4.26.260
Luminance
Astrometry: RA 10 10 04.79 Dec -11 46 36.2
Photometry: 17.99 +/- 0.18 L (V for ref)
Infrared
Astrometry: RA 10 10 04.78 Dec -11 46 36.8
Photometry: 17.66 +/- 0.30 IR > 700 nm (R for ref)
These data were collected remotely from New mexico Skies, Mayhill, New Mexico, by Joseph Brimacombe Coral Towers Observatory, Cairns, Australia using a 51-cm RCOS and STL11K camera.
FITS file available on request from jbrimaco@bigpond.net.au