| 20 | | * A-009 (Who?): Answer Gene's questions: 1) What fraction of the detections have flux / flux_sig < 5 (the nominal cutoff) or < 3 (a possible agressive cutoff)?; 2) What is the spatial distribution of these detections? 3) What does the histogram of pixel value / sqrt(pixel variance) look like in areas / cells with large numbers of these detections? Should be a Gaussian with a width of 1, but if there is excess noise from the camera in some areas, the width will be > 1 (we underestimate the variance). |
| | 20 | * A-009 (Who?): Answer Gene's questions: |
| | 21 | * 1) What fraction of the detections have flux / flux_sig < 5 (the nominal cutoff) or < 3 (a possible agressive cutoff)?; |
| | 22 | * 2) What is the spatial distribution of these detections? |
| | 23 | * 3) What does the histogram of pixel value / sqrt(pixel variance) look like in areas / cells with large numbers of these detections? Should be a Gaussian with a width of 1, but if there is excess noise from the camera in some areas, the width will be > 1 (we underestimate the variance). |