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Table 1
Log of observations, April 6, 2016.
| IRDIS | IFS | |||||||
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| UT time | Neutral density | DIT × NDIT × NEXP | ΔPA | ⟨Seeing⟩ | Airmass | τ0 | Remarks | |
| HH:MM | (s) | (s) | (°) | (′′) | (ms) | |||
|
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| 04:49 | ND_1.0 | 4 × 2 × 1 | 8 × 1 × 1 | 0.1 | 1.2 | 1.1 | 3.7 | Unsat. PSF |
| 04:50 | ND_0.0 | 32 × 1 × 1 | 64 × 1 × 1 | 0.1 | 1.2 | 1.1 | 4.6 | Star center |
| 04:50 | ND_0.0 | 32 × 8 × 16 | 64 × 4 × 16 | 37.5 | 1.1 | 1.1 | 3.5 | ADI sequence |
| 06:01 | ND_1.0 | 4 × 2 × 1 | 8 × 1 × 1 | 0.1 | 1.1 | 1.1 | 2.9 | Unsat. PSF |
| 06:02 | ND_0.0 | 32 × 1 × 1 | 64 × 1 × 1 | 0.1 | 1.0 | 1.1 | 3.0 | Star center |
Notes. The seeing is measured at 0.5 μm. DIT (Detector Integration Time) refers to the individual exposure time per frame. NDIT is the number of individual frames per exposure, NEXP is the number of exposures, and ΔPA to the amplitude of the parallactic rotation.
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