Open Access
Table 3
Observed targets for optical gain measurement, and corresponding AO parameters.
| Vega | Altair | β Peg | |
|---|---|---|---|
| Date (D/M/Y) | 24/05/23 | 26/07/24 | 26/07/24 |
| CET (h:m) | 03:02 | 00:17 | 02:05 |
| Magnitude (V band) | 0.09 | 0.82 | 2.48 |
| Elevation | 76° | 52° | 57° |
| Zenithal seeing (500 nm) | 2.16” | 2.04” | 1.07” |
| Frequency | 500 Hz | 400 Hz | 400 Hz |
| Integrator gain | 0.5 | 0.4 | 0.3 |
| Modulation | 5 λ/D | 5 λ/D | 5 λ/D |
| Controlled KL modes | 192 | 166 | 166 |
| Sensing wavelength | 635 nm | 635 nm | 635 nm |
| Imaging wavelength | 635 nm | 1450 nm | 1450 nm |
| GSC exposure time | 20 ms | 10 ms | 10 ms |
| GSC binning | − | 2 × 2 | 2×2 |
| NCPAs compensation | 0 | λWFS/4 | λWFS/4 |
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