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Table 3
Observed mid-transit times and O – C values of AU Mic b based on TESS, Spitzer, and CHEOPS observations.
| Designation | Transit time | O – C | Err |
|---|---|---|---|
| [BJD–2 450 000] | [min] | [min] | |
| TESS S1#1 (a) | 8330.3911±0.0009 | 10.00 | 1.33 |
| TESS S1#2 (a) | 8347.3174±0.0009 | 10.02 | 1.33 |
| Spitzer#1 (b) | 8525.04509±0.0010 | 12.45 | 1.43 |
| TESS S27#1 (a) | 9041.2816±0.0008 | –9.42 | 1.17 |
| TESS S27#2 (a) | 9049.7457±0.0008 | –8.05 | 1.17 |
| TESS S27#3 (a) | 9058.2080±0.0008 | –9.40 | 1.17 |
| CHEOPS 20-07-10 (a) | 9041.2828±0.0006 | –7.70 | 0.87 |
| CHEOPS 20-08-21 (a) | 9083.5970±0.0004 | –9.88 | 0.58 |
| CHEOPS 20-09-24 (a) | 9117.4515±0.0008 | –7.08 | 1.17 |
| CHEOPS 21-07-26 (c) | 9422.1342±0.0010 | 8.40 | 1.43 |
| CHEOPS 21-08-12 (c) | 9439.0636±0.0021 | 9.55 | 3.15 |
| CHEOPS 21-08-29 (c) | 9455.9895±0.0007 | 10.65 | 1.0 |
| CHEOPS 21-09-06 (c) | 9464.4531±0.0009 | 11.25 | 1.27 |
| CHEOPS 22-08-08 (d) | 9769.1264±0.0013 | 11.49 | 1.9 |
| CHEOPS 22-08-25 (d) | 9786.0532±0.0013 | 12.23 | 1.9 |
| CHEOPS 22-08-28 (d) | 9819.9045±0.0013 | 10.26 | 1.9 |
| CHEOPS 23-08-10 (d) | 10166.8751±0.0037 | –15.88 | 5.2 |
| CHEOPS 23-08-27 (d) | 10183.8089±0.0055 | –5.06 | 7.9 |
| CHEOPS 23-09-13 (d) | 10200.7339±0.0064 | –6.91 | 9.2 |
Notes. Tc = 2458 330.38416d and Pmean = 8.4631427d were used to determine O–C values. The references for the transit times are (a) Szabó et al. (2021), (b)Plavchan et al. (2020), (c)Szabó et al. (2022), (d)This research.
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