| | 8 | This was a short week with the turkey-based holiday, and a bit shorter for me. I spent some time exploring the neighbor-detection flags that are raised in ppSub. These are meant to mark detections which are likely to be from the wings of poorly subtracted stars: one bit is raised if the diff detection is close to a source in both the A and B image, a second bit is raised if the diff detection is close to only one or the other. I discovered that a counting error resulted in only a small fraction of the available A or B image detections being used for the matching, making the flag frequently wrong. I fixed this and also added a flag to note cases where the positive image detection is likely to be exactly the diff detection (ie, the closest detection is the positive image of the object itself). |
