Open Access
Table C.1
Transit times and deviations of the b, c, and d planets in the K2-138 system.
| Planet | Epoch | TC−2 450 000 [BJD_TDB] | O–C (min) | Source |
|---|---|---|---|---|
| b | 0 | 7740.3713 ± 0.0060 | – | HU21 |
| 14 | 7773.3168 ± 0.0009 | – | L19 | |
| 14 | 7773.3170 ± 0.0038 | – | Ch18 | |
| c | 0 | 7740.3218 ± 0.0009 | 0±1 | L19 (To) |
| 0 | 7740.3223 ± 0.0025 | 1±4 | Ch18 (To) | |
| 0 | 7740.3210 ± 0.0030 | −1 ± 4 | HU21 (To) | |
| 1 | 7743.8862 ± 0.0206 | 7 ± 30 | K2 | |
| 2 | 7747.4402 ± 0.0057 | −2 ± 8 | K2 | |
| 3 | 7751.0001 ± 0.0089 | −2 ± 13 | K2 | |
| 4 | 7754.5610 ± 0.0113 | 0 ± 16 | K2 | |
| 5 | 7758.1188 ± 0.0039 | −3 ± 6 | K2 | |
| 6 | 7761.6797 ± 0.0064 | −1 ± 9 | K2 | |
| 8 | 7768.8083 ± 0.0248 | 12 ± 36 | K2 | |
| 10 | 7775.9192 ± 0.0054 | −1 ± 8 | K2 | |
| 11 | 7779.4805 ± 0.0056 | 1±8 | K2 | |
| 12 | 7783.0410 ± 0.0028 | 2±4 | K2 | |
| 13 | 7786.5934 ± 0.0089 | −9 ± 13 | K2 | |
| 15 | 7793.7201 ± 0.0079 | 2 ± 11 | K2 | |
| 16 | 7797.2763 ± 0.0249 | −4 ± 36 | K2 | |
| 17 | 7800.8394 ± 0.0067 | 1 ± 10 | K2 | |
| 18 | 7804.4000 ± 0.0067 | 2 ± 10 | K2 | |
| 19 | 7807.9484 ± 0.0078 | −14 ± 11 | K2 | |
| 20 | 7811.5195 ± 0.0042 | 2±6 | K2 | |
| 21 | 7815.0791 ± 0.0092 | 2 ± 13 | K2 | |
| 497 | 9509.6957 ± 0.0020 | 204 ± 36 | CHEOPS | |
| d | 0 | 7743.1607 ± 0.0041 | 7 ± 14 | K2 |
| 1 | 7748.5660 ± 0.0043 | 7 ± 15 | K2 | |
| 2 | 7753.9560 ± 0.0242 | −15 ± 37 | K2 | |
| 3 | 7759.3751 ± 0.0047 | 4 ± 15 | K2 | |
| 4 | 7764.7791 ± 0.0040 | 2 ± 14 | K2 | |
| 5 | 7770.1865 ± 0.0156 | 5 ± 26 | K2 | |
| 6 | 7775.5908 ± 0.0067 | 4 ± 16 | K2 | |
| 7 | 7780.9950 ± 0.0063 | 2 ± 16 | K2 | |
| 8 | 7786.3989 ± 0.0098 | 0 ± 19 | K2 | |
| 9 | 7791.8063 ± 0.0104 | 3 ± 20 | K2 | |
| 10 | 7797.1958 ± 0.0175 | −20 ± 28 | K2 | |
| 11 | 7802.6102 ± 0.0080 | −7 ± 17 | K2 | |
| 12 | 7808.0162 ± 0.0088 | −6 ± 18 | K2 | |
| 13 | 7813.3996 ± 0.0304 | −38 ± 46 | K2 | |
| 182 | 8726.8223 ± 0.0081 | −158 ± 14 | B22 | |
| 194 | 8791.7629 ± 0.0066 | −48 ± 12 | B22 | |
| 249 | 9089.0881 ± 0.0062 | −4± 12 | CHEOPS | |
| 252 | 9105.3154 ± 0.0032 | 12 ± 10 | CHEOPS | |
| 254 | 9116.1251 ± 0.0031 | 10 ± 10 | CHEOPS | |
| 256 | 9126.9414 ± 0.0067 | 18 ± 13 | CHEOPS |
Notes. Sources of reference epochs (T0) and transit mid-times correspond to Christiansen et al. (2018) (Ch18), Lopez et al. (2019) (L19), Hardegree-Ullman et al. (2021) (HU21) and Boyle et al. (2022) (B22).
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