Table 1.
Observation log together with their fluxes, pulse periods, and pulse period derivatives.
| Mission | Epoch | ObsID | Date [MJD] | Flux (a) | P [ms] −415.0 ms | Ṗ [10−10 s s−1] | PF [%] |
|---|---|---|---|---|---|---|---|
| XMM-Newton | X2/2013 | 0693760401 | 56621.21 | 6.20 ± 0.27 | 4.712 ± 0.008 |
 |
32 ± 5 |
| XMM-Newton | X3/2014 | 0748390901 | 57002.00 | 18.9 ± 0.6 |
 |
 |
34.5 ± 3.0 |
| XMM-Newton | XN1/2016 | 0781800101 | 57528.58 | 37.2 ± 0.8 |
 |
 |
23.7 ± 2.1 |
| NuSTAR | XN1/2016 | 80201010002 | 57528.18 |
 |
 |
 |
27.7 ± 2.1 |
| XMM-Newton | 2017A | 0804670201 | 57886.17 | 16.0 ± 0.9 | – | – | < 16 |
| XMM-Newton | 2017B | 0804670301 | 57893.66 | 16.4 ± 0.5 |
 |
 |
17.5 ± 2.9 |
| NuSTAR | 2017B | 30302005002 | 57892.71 |
 |
0.8755 ± 0.0020 |
 |
22 ± 4 |
| XMM-Newton | 2017C | 0804670401 | 57904.90 | 31.8 ± 0.8 | 0.724 ± 0.010 | −2 ± 6 | 17.6 ± 2.9 |
| XMM-Newton | 2017D | 0804670501 | 57916.10 | 38.8 ± 0.9 |
 |
 |
10.9 ± 2.5 |
| XMM-Newton | 2017E | 0804670601 | 57924.11 | 36.3 ± 0.9 |
 |
 |
10.6 ± 2.7 |
| NuSTAR | 2017F | 30302015002 | 57933.93 |
 |
 |
 |
17.4 ± 2.4 |
| NuSTAR | 2017G | 30302015004 | 57942.93 |
 |
 |
 |
14.2 ± 2.8 |
| NuSTAR | 2017H | 90301326002 | 58057.58 |
 |
 |
0.4 ± 0.7 | 13.7 ± 2.5 |
| XMM-Newton | 2017I | 0804670701 | 58083.00 | 24.0 ± 0.6 |
 |
 |
25.8 ± 2.5 |
| NuSTAR | 2017I | 30302005004 | 58082.95 | 26.6 ± 1.0 |
 |
 |
20.8 ± 2.7 |
| XMM-Newton | 2018A | 0823410301 | 58449.79 | 23.3 ± 0.8 |
 |
 |
46 ± 4 |
| XMM-Newton | 2018B | 0823410401 | 58479.60 | 13.4 ± 0.6 |
 |
 |
56 ± 4 |
| XMM-Newton | 2019A | 0840990101 | 58619.99 | 11.3 ± 0.6 | −1.843 ± 0.009 | −1 ± 5 | 35 ± 4 |
| NuSTAR | 2019B | 50401003002 | 58805.68 | 3.7 ± 0.5 | −2.365 ± 0.004 |
 |
63 ± 8 |
| XMM-Newton | 2019B | 0853981001 | 58809.36 | 5.0 ± 0.5 | −2.414 ± 0.007 |
 |
49 ± 6 |
| NuSTAR | 2019C | 30502019002 | 58830.98 | 3.7 ± 0.4 |
 |
 |
60 ± 6 |
| NuSTAR | 2020A | 30502019004 | 58856.54 | 4.1 ± 0.5 |
 |
 |
61 ± 7 |
| XMM-Newton | 2020B | 0861600101 | 59027.98 |
 |
– | – | < 54 |
| NuSTAR | 2020C | 90601327002 | 59083.22 |
 |
– | – | < 48 |
Notes. Data above the horizontal line were already presented in Fürst et al. (2018); new data are below the line. For clarity, we also list the epoch labels for the archival data given in Fürst et al. (2016) and Walton et al. (2018). The last column gives the pulsed fraction (PF) in the 3−10 keV band.
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