Open Access

Table C.1.

Journal of the spectroscopic observations of AT 2023txn.

Date UT expt instr. tel phase date UT expt instr. tel phase
2023-10-13 20:23 360 B&C 1.22m 0.381 2024-01-27 05:11 1800 Ech 1.82m 0.502
2023-10-14 20:22 2700 Ech 0.84m 0.382 2024-01-29 05:22 1800 Ech 1.82m 0.505
2023-10-27 18:39 2700 Ech 0.84m 0.397 2024-03-12 04:25 2700 Ech 0.84m 0.554
2023-11-08 19:34 3600 Ech 0.84m 0.411 2024-07-11 22:33 600 B&C 1.22m 0.695
2023-11-13 17:43 480 B&C 1.22m 0.416 2024-09-21 21:15 900 Ech 1.82m 0.778
2023-11-19 18:29 7200 Ech 0.84m 0.423 2024-10-29 19:24 600 B&C 1.22m 0.822
2023-12-05 18:00 2700 Ech 0.84m 0.442 2024-11-15 17:43 600 B&C 1.22m 0.841
2023-12-18 17:17 480 B&C 1.22m 0.457 2025-03-03 04:07 1200 B&C 1.22m 0.965
2023-12-27 18:04 3600 Ech 0.84m 0.467 2025-06-25 21:35 3600 LowR 0.84m 0.097
2024-01-04 17:32 2700 Ech 0.84m 0.476 2025-06-27 22:30 8100 Ech 0.84m 0.099
2024-01-15 17:06 480 B&C 1.22m 0.489 2025-07-30 20:24 3600 B&C 1.22m 0.138
2024-01-16 17:48 2700 Ech 0.84m 0.490 2025-08-08 22:32 2400 Ech 1.82m 0.148

Notes. The phase in the last column is computed from Eq. 1 (passage of the system at deep minima).

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