Science CCD image	'Science - Reference' difference

Notes

• Black regions in difference images are bad/saturated pixels.


• At the bottom of each frame are the seeing; Julian day of observation; number of raw candidates extracted before any vetting; number of candidates following machined-learned vetting with a RealBogus score of > 0.73. This corresponds to a false-positive rate of < 1%.


• Each image is the size of a PTF CCD footprint: ≈ 34′ × 69′.


• For details, see Masci et al., 2016, PASP, 126, 941. The IPAC Image Subtraction and Discovery Pipeline for the intermediate Palomar Transient Factory