|
|
|
|
|
|
|
|
|
|
|
Filter change overheads (sec) |
|
|
|
|
|
|
|
|
|
z |
J |
H |
Ks |
| z |
0 |
18 |
63 |
47 |
| J |
80 |
0 |
58 |
43 |
| H |
34 |
39 |
0 |
68 |
| Ks |
54 |
54 |
55 |
0 |
|
average: ~50 seconds |
|
|
|
|
|
Changing imaging and spectroscopic modes (sec) |
|
|
|
|
|
|
|
|
|
image (J) |
spec (zj) |
spec (hk) |
| image (J) |
0 |
78 |
45 |
| spec (zj) |
43 |
0 |
69 |
| spec (hk) |
78 |
56 |
0 |
|
average: ~60 seconds
representative for other filters as well.
|
|
|
|
|
|
Changing imaging, polarimetric and coronographic modes (sec) |
|
|
|
|
|
|
|
|
|
limage j |
lipol j |
lcor j |
| limage j |
0 |
71 |
79 |
| lipol j |
45 |
0 |
53 |
| lcor j |
47 |
74 |
0 |
|
average: ~60 seconds
representative for other filters as well
|
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|
On-target Movement overheads: |
|
|
|
|
|
|
|
| 12" dithering offset (imaging, tracking): |
8 |
| 24" dithering offset (imaging, tracking): |
11 |
| 12" nodding offset (spectroscopy, tracking): |
12 |
| 12" nodding offset (spectroscopy, guiding): |
33 |
|
|
|
|
|
|
|
Exposure related overheads: |
|
|
|
|
|
|
|
| Imaging read-out time: |
2 |
| Spectroscopy read-out time: |
5 |
| Time until image is displayed after readout: |
4 |
| Time until image is saved after readout: |
4 |
| Time until you get the prompt back after readout: |
2 |
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|
