| Telescope | MDM 1.3m |
| Date | 4/5/95 |
| Instrument | Nellie |
| Filter | V |
| Exposure Time |
900 sec |
| Other | Out of focus |
Problem:Contour plot of star in out of focus image. Note the elongation along the direction of astigmatism as opposed to along the x or y axes. |
Fix:Adjust focus until star has a round profile. |