| Telescope | CTIO 4m |
| Date | 5/14/1996 |
| Instrument | BTC |
| Filter | R |
| Exposure Time |
300 s |
Problem:These features are stray reflections. They are due to a part of the prime focus cage that was not properly baffled. They appear when a bright star off the edge of the field reflects off a metal plate onto the camera. The wavy parts are due to the machining grooves in the metal plate. |
Fix:A new baffle was inserted into the prime focus cage. |