Table 1.
Journal of the observations of J1109 presented in this work.
| Telescope/Instrument | Setup (grating) | Start – End time | Exposure | Band |
|---|---|---|---|---|
| NTT/ULTRACAM | Full-Frame | 2019 Apr. 12 23:31:18–2019 Apr. 13 03:30:32 | 60 s (×239) | uS |
| 20 s (×718) | gS, rS | |||
| NTT/ULTRACAM | Full-Frame | 2019 Apr. 14 00:00:36–2019 Apr. 14 02:02:04 | 60 s (×122) | uS |
| 20 s (×365) | gS, iS | |||
| SALT/RSS | Long-slit (PG1300) | 2020 May 21 18:23:33–2020 May 21 20:03:33 | 600 s (×10) | 4576–6610 Å |
| SALT/RSS | Long-slit (PG1800) | 2021 Apr. 2 19:30:38–2021 Apr. 2 21:20:39 | 600 s (×11) | 5800–7100 Å |
| Long-slit (PG1800) | 2021 Apr. 3 18:30:27–2021 Apr. 3 20:40:27 | 600 s (×13) | 5800–7100 Å | |
| Long-slit (PG1800) | 2021 Apr. 4 18:16:59–2021 Apr. 4 20:26:59 | 600 s (×13) | 5800–7100 Å | |
| Long-slit (PG1800) | 2021 Apr. 6 17:54:29–2021 Apr. 6 20:04:29 | 600 s (×13) | 5800–7100 Å | |
| Long-slit (PG1800) | 2021 Apr. 8 21:11:20–2021 Apr. 8 23:41:20 | 600 s (×14) | 5800–7100 Å | |
| Long-slit (PG1800) | 2021 Apr. 9 18:46:23–2021 Apr. 9 20:46:23 | 600 s (×12) | 5800–7100 Å | |
| Long-slit (PG1800) | 2021 Apr. 10 18:08:24–2021 Apr. 10 20:08:24 | 600 s (×12) | 5800–7100 Å | |
| Long-slit (PG1800) | 2021 Apr. 22 20:26:45–2021 Apr. 22 22:46:45 | 600 s (×14) | 5800–7100 Å | |
| XMM-Newton/EPIC-MOS1 | Small window | 2022 Mar. 3 00:16:28–2022 Mar. 3 06:33:34 | 22.0 ks | 0.3–10 keV |
| XMM-Newton/EPIC-MOS2 | Small window | 2022 Mar. 3 00:16:49–2022 Mar. 3 06:33:37 | 21.9 ks | 0.3–10 keV |
| XMM-Newton/EPIC-pn | Fast timing | 2022 Mar. 3 00:54:05–2022 Mar. 3 06:33:47 | 19.9 ks | 0.3–10 keV |
| NTT/ULTRACAM | Full-Frame | 2022 Mar. 3 00:55:06–2022 Mar. 3 06:00:54 | 42 s (×437) | uS |
| 14 s (×1310) | gS, iS | |||
| VLT/HAWK-I | Fast Phot. | 2022 Mar. 17 03:32:32–2022 Mar. 17 04:43:58 | 15 s (×290) | J |
Notes. The different observing epochs are separated by a horizontal line. For the NTT/ULTRACAM, SALT, and VLT/HAWK-I observations, the exposures are given for each individual image or spectrum and the numbers in parentheses indicate the total number of exposures for each observing session.
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