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MagE – Calibrations
Order definition
Fast 1x1 (Xe-Lamp)
| Slit (") | 0.5 | 0.7 | 0.85 | 1.0 | 1.2 | 1.5 | 2.0 | 5.0 | comments |
| Exp.Time (sec) | 50 | 35 | 30 | 25 | 20 | 15 | 10 | 5 | orders 9-14 show counts between 15000-25000 (a couple of lines are saturated) - low counts in orders 6 and 18-20 (50 to 100 counts above background) |
| Exp.Time (sec) | 99 | 90 | 90 | 60 | 60 | 40 | 30 | 15 | orders 18-20 have ~200-400 counts over the background - orders 10-14 show some saturation |
Red Flats (external, w/flat field screen)
With lamp Qh - reaching 30000-40000 counts in orders 7-9
Fast 1x1
| Slit (") | 0.5 | 0.7 | 0.85 | 1.0 | 1.2 | 1.5 | 2.0 | 5.0 |
| Exp.Time (sec) | 50 | 30 | 25 | 20 | 18 | 14 | 10 | 4 |
Slow 1x1
| Slit (") | 0.5 | 0.7 | 0.85 | 1.0 | 1.2 | 1.5 | 2.0 | 5.0 |
| Exp.Time (sec) | 58 | 38 | 32 | 25 | 21 | 17 | 13 | 5 |
Blue and Very blue flats :
Lamp: Xe-flash
Slit: 5"
Focus set to 1100 - remember to write down the nominal focus value, because it has to be manually inserted after flat sequence is over.
Exp. time: 15s for Blue flats and 100s for Very blue flats
A sequence of at least 15 blue flats and at least 5 Very blue flats is recommended. For more details take a look at the manual