Open Access
Table 1
Main parameters used for the data reduction in the four filters images for the HAWK-I instrument.
| H2 | Brγ | J | Ks | |
|---|---|---|---|---|
| Spatial resolution (1) (″) | 0.61 | 0.72 | 1.00 | 0.92 |
| Saturation limit (2) (mag) | 10.85 | 10.89 | 8.67 | 6.60 |
| Total exposure time (s) | 2400 | 2400 | 1800 | 1800 |
| Nframe × texp/frame (s) | 30 × 80 | 30 × 80 | 30 × 60 | 30 × 60 |
| Airmass (start-end) | 1.423–1.419 | 1.282–1.283 | 1.496–1.493 | 1.398–1.395 |
| Jitter width (arcsec) | 20 | 20 | 20 | 20 |
| Seeing (corrected by airmass) | 0.78 | 1.08 | 1.01 | 1.07 |
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