Open Access
Table 1.
Log of NIR observations.
| J-band |
H-band |
Ks-band |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | MJD | FWHM | AM | Nf | FWHM | AM | Nf | FWHM | AM | Nf | ET |
| 2021-05-15 | 59 349.301 | 4.06 | 1.07 | 5 | – | – | – | – | – | – | 5 |
| 2021-05-17 | 59 351.199 | 3.86 | 1.17 | 5 | 3.93 | 1.15 | 5 | 3.80 | 1.14 | 5 | 5 |
| 2021-05-17 | 59 351.398 | 3.11 | 1.02 | 5 | 3.31 | 1.02 | 5 | 3.08 | 1.02 | 5 | 5 |
| 2021-05-23 | 59 357.301 | 5.11 | 1.06 | 5 | – | – | – | – | – | – | 5 |
| 2021-05-23 | 59 357.398 | 3.80 | 1.07 | 5 | 3.89 | 1.08 | 5 | 3.86 | 1.09 | 5 | 5 |
| 2021-05-24 | 59 358.301 | 3.79 | 1.01 | 5 | 4.07 | 1.01 | 5 | – | – | – | 5 |
| 2021-05-24 | 59 358.398 | 3.94 | 1.17 | 5 | 3.96 | 1.18 | 5 | 3.30 | 1.20 | 5 | 5 |
| 2021-05-30 | 59 364.199 | 3.90 | 1.01 | 5 | 3.84 | 1.01 | 5 | 3.75 | 1.01 | 5 | 5 |
| 2021-05-31 | 59 365.199 | 3.11 | 1.01 | 5 | 3.28 | 1.02 | 5 | 2.99 | 1.02 | 5 | 5 |
| 2021-06-01 | 59 366.199 | 3.62 | 1.22 | 5 | 3.40 | 1.19 | 5 | 4.08 | 1.18 | 5 | 5 |
| 2021-06-01 | 59 366.301 | 3.97 | 1.04 | 5 | – | – | – | – | – | – | 5 |
| 2021-06-02 | 59 367.199 | 3.47 | 1.01 | 5 | 3.59 | 1.01 | 5 | 3.30 | 1.01 | 5 | 5 |
| 2021-06-02 | 59 367.301 | 3.27 | 1.08 | 5 | 3.61 | 1.09 | 5 | 3.09 | 1.10 | 7 | 5 |
| 2021-06-03 | 59 368.199 | 3.89 | 1.03 | 10 | 4.25 | 1.02 | 7 | 3.93 | 1.01 | 8 | 5 |
| 2021-06-12 | 59 377.000 | 3.09 | 1.60 | 5 | 3.31 | 1.56 | 5 | 2.61 | 1.52 | 5 | 5 |
| 2021-06-13 | 59 378.301 | 4.35 | 1.12 | 5 | 4.90 | 1.13 | 5 | 3.86 | 1.15 | 5 | 5 |
| 2021-06-14 | 59 379.000 | 3.43 | 1.54 | 5 | 3.75 | 1.50 | 5 | 3.47 | 1.47 | 5 | 5 |
| 2021-06-14 | 59 379.102 | 3.79 | 1.10 | 5 | 4.00 | 1.09 | 5 | 3.62 | 1.08 | 5 | 5 |
| 2021-06-14 | 59 379.199 | 4.15 | 1.04 | 10 | 4.20 | 1.05 | 10 | 4.75 | 1.07 | 10 | 5 |
| 2021-06-28 | 59 393.199 | 3.95 | 1.29 | 5 | 3.99 | 1.32 | 5 | 3.69 | 1.35 | 5 | 5 |
| 2021-07-08 | 59 403.102 | 3.80 | 1.10 | 5 | 3.77 | 1.09 | 5 | 3.15 | 1.08 | 5 | 5 |
Notes. MJD: Modified Julian Date (JD−2,400,000.5). FWHM: Measured median full width at half maximum using SExtractor. AM: Median airmass. Nf: Number of dithered frames on target per epoch. ET: Exposure time (in seconds) for each dithered frame.
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