Open Access
Table 1.
MuSCAT observations of K2-22.
| UT Date (start) | Images | Depth | Note |
|---|---|---|---|
| (g′/r′/i′/Zs) | (ppm) (c) | ||
| M3 (g/r/i/z exposure times all 120 s) | |||
| 2020-12-29 10:31 (a) | 83 | – | Weather |
| 2021-01-06 10:04 (a) | 85 | – | Guiding |
| 2021-01-09 11:13 (a) | 82 | – | Weather |
| 2021-01-11 08:57 (a) | 70 | – | Weather |
| 2021-01-22 10:09 (a) | 85 | – | Weather |
| 2021-03-31 06:32 (a) | 83 | < 580 | |
| 2021-04-03 07:42 (a) | 83 | – | Weather |
| 2021-04-06 08:52 (a) | 83 | < 370 | |
| 2021-04-16 06:40 (a) | 83 | – | Weather |
| 2021-04-19 07:50 (a) | 83 | < 420 | |
| 2021-04-29 05:38 (a) | 82 | – | Missed |
| 2021-05-10 06:53 (a) | 83 | < 620 | |
| 2021-05-15 05:47 (a) | 83 | < 730 | |
| 2021-05-18 06:57 (a) | 82 | < 840 | |
| 2021-05-23 05:52 (a) | 84 | < 780 | |
| 2021-05-26 07:02 (a) | 65 | – | Missed |
| 2022-02-08 07:52 | 63 | 3670–4470 | |
| 2022-02-27 09:08 | 83 | < 1000 | |
| 2022-03-12 08:06 | 83 | < 710 | |
| M3 (g/r/i/z exposure times = 122/32/29/55 s) | |||
| 2022-02-11 09:02 | 83/308/283/181 | 2220–2960 | |
| 2022-02-24 07:59 | 83/308/282/181 | 3560–4270 | |
| M3 (g/r/i/z exposure times = 120/30/25/35 s) | |||
| 2022-03-01 06:52 | 74/74/74/74 | < 460 | |
| 2022-03-05 11:28 | 84/297/346/275 | < 600 | |
| 2022-03-07 09:13 | 83/293/340/270 | – | Weather |
| 2022-03-23 09:20 | 84/297/345/275 | < 700 | |
| 2022-03-25 07:04 | 84/297/346/275 | < 820 | |
| 2022-03-28 08:14 | 84/297/346/275 | 1720–2470 | |
| 2023-01-21 11:52 | 82/293/340/270 | < 820 | |
| 2023-03-17 08:52 | 84/295/342/274 | – | Weather |
| 2023-03-27 06:39 | 84/203/339/271 | < 340 | |
| 2023-04-07 07:53 | 83/284/330/263 | < 1580 | |
| 2023-04-10 09:03 | 84/298/348/276 | 1390–2170 | |
| 2023-04-23 08:00 | 84/299/348/277 | < 270 | |
| M2 (g/r/i/z exposure times = 15/90/90/90 s) | |||
| 2021-01-22 01:03 | 1188/313/211/211 | 1300–1510 | |
| 2021-02-12 00:23 | 697/124/124/124 | < 800 | |
| 2021-12-18 03:10 | 782/137/- (b)/142 | < 990 | |
| 2021-12-23 02:30 | 477/48/- (b)/91 | < 1660 | |
| 2021-12-24 02:37 | 269/15/- (b)/154 | – | Weather |
| 2022-01-06 02:20 | 917/163/163/163 | 1680–2840 | |
| 2022-01-08 01:59 | 685/140/131/139 | < 3800 | |
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