Supernova PTF12hmx in USNOA2 0900-20232164 Narrowfield L - Sept 12

Supernova PTF12hmx in USNOA2 0900-20232164 Narrowfield L - Sept 12, a photo by Joseph Brimacombe on Flickr.

Via Flickr:
SUMMARY
Non-detection. Possible unknown object seen west of nucleus at Mag 20.2 L. Not seen on DSS2 image.
DISCOVERY
Palomar Transient Factory: 2012.8.7.29; Mag 18.8; Type 1a
TECHNICAL INFORMATION
Total exposure 60 min (4 x 15 min, luminance filter; binned 2x2, scale 0.91 asec/px)
Time: 2012.9.12.177
Astrometry: B = Discovery position A = possible new object or erronous co-ordinates of PTF12hmx RA 22 47 09.10 Dec 00 10 34.1
Photometry: B = Not done. A = Possible new object 20.2 +/- 0.3 L
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.