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Table C.2.

Log of X-ray observations.

MJD Texp Tin/Γ fX, soft ObsID Mission X-ray phase cycle
58919.15 325 3.0 < 0.22 eRASS1 eROSITA — —
59101.73 340 eRASS2a eROSITA PX, rise 1
59272.63 194 eRASS3 eROSITA PX, plat 1
59281.86 123 eRASS3 eROSITA PX, plat 1
59284.89 1683 00014135001 Swift PX, plat 1
59290.94 1664 3.0 < 0.19 4604010101 NICER PX, drop 1
59291.53 9941 3.0 < 0.13 4604010102 NICER PX, drop 1
59292.21 6394 3.0 < 0.14 4604010103 NICER PX, drop 1
59298.15 4387 3.0 < 0.18 4604010201 NICER PX, drop 1
59300.20 10040 0862770201 XMM-Newton PX, drop 1
59305.09 2735 3.0 < 0.20 4604010301 NICER PX, faint 1
59320.20 3254 3.0 < 0.28 00014135002 Swift PX, faint 1
59322.59 1808 3.0 < 0.30 4604010501 NICER PX, faint 1
59323.49 4525 3.0 < 0.21 4604010502 NICER PX, faint 1
59325.27 230 3.0 < 0.35 4604010504 NICER PX, faint 1
59328.31 420 3.0 < 0.24 4604010507 NICER PX, faint 1
59329.73 3342 3.0 < 0.24 00014135003 Swift PX, faint 1
59340.45 1402 3.0 < 0.54 00014135004 Swift PX, faint 1
59391.16 7669 78 00014135005a Swift PX, rise 2
59399.00 6406 00014135006a Swift PX, rise 2
59405.13 1793 00014135007a Swift PX, rise 2
59413.03 1641 00014135008a Swift PX, rise 2
59422.51 4304 4595020102a,b NICER PX, rise 2
59423.35 2589 4595020103a,b NICER PX, rise 2
59427.10 1631 00014135009a Swift PX, rise 2
59428.95 788 4595020105a NICER PX, rise 2
59432.96 764 4595020107a,b NICER PX, rise 2
59433.12 999 4595020108a,b NICER PX, rise 2
59434.71 1968 00014135010a Swift PX, rise 2
59441.95 514 4595020109a,b NICER PX, rise 2
59442.05 224 4595020110a,b NICER PX, rise 2
59445.50 2121 4595020111a NICER PX, rise 2
59447.51 40200 — 0891801101 XMM-Newton PX, plat 2
59448.38 1179 4595020112 NICER PX, plat 2
59450.80 3350 4595020113 NICER PX, plat 2
59453.89 2954 00014135011 Swift PX, plat 2
59460.31 345 eRASS4 eROSITA PX, plat 2
59467.45 1568 4604010901 NICER PX, plat 2
59468.45 445 00014135012 Swift PX, plat 2
59470.50 341 4604010902 NICER PX, plat 2
59472.51 2542 00014135013 Swift PX, plat 2
59476.22 1560 4604010903 NICER PX, plat 2
59479.33 929 4604010904 NICER PX, plat 2
59481.30 85960 — 0891801701 XMM-Newton PX, plat 2
59481.49 2490 00014135014 Swift PX, plat 2
59482.46 4637 4604010905 NICER PX, plat 2
59485.04 1183 4604010906 NICER PX, plat 2
59488.08 1532 4604010907 NICER PX, plat 2
59491.05 1410 4604010908 NICER PX, plat 2
59494.25 811 4604010909 NICER PX, plat 2
59496.67 3079 00014135016 Swift PX, plat 2
59497.25 1133 4604010910 NICER PX, plat 2
59499.80 1703 4604010911 NICER PX, plat 2
59500.64 3647 4604010912 NICER PX, plat 2
59501.35 10186 4604010913 NICER PX, plat 2
59502.49 7885 4604010914 NICER PX, plat 2
59503.48 7906 4604010915 NICER PX, plat 2
59504.51 4370 4604010916 NICER PX, plat 2
59505.52 3600 4604010917 NICER PX, plat 2
59506.22 826 4604010918 NICER PX, plat 2
59508.15 553 4604010920 NICER PX, plat 2
59510.21 3079 4604010921 NICER PX, plat 2
59510.83 2777 00014135017 Swift PX, plat 2
59511.91 2492 4604010922 NICER PX, plat 2
59517.60 2745 3.0 < 0.15 4604011001 NICER PX, drop 2
59520.47 3000 3.0 < 0.22 4604011002 NICER PX, faint 2
59523.54 1200 3.0 < 0.27 4604011003 NICER PX, faint 2
59524.53 1371 3.0 < 1.50 00014135018 Swift PX, faint 2
59526.63 936 3.0 < 0.29 4604011004 NICER PX, faint 2
59527.63 3924 3.0 < 0.24 00014135019 Swift PX, faint 2
59529.83 636 3.0 < 0.30 4604011005 NICER PX, faint 2
59529.87 1402 3.0 < 0.69 00014135021 Swift PX, faint 2
59532.54 1143 3.0 < 0.29 4604011006 NICER PX, faint 2
59535.32 1817 3.0 < 0.28 4604011007 NICER PX, faint 2
59538.23 2041 3.0 < 0.19 4604011008 NICER PX, faint 2
59541.33 1884 3.0 < 0.14 4604011009 NICER PX, faint 2
59543.75 1996 3.0 < 0.39 00014135022 Swift PX, faint 2
59557.41 2372 3.0 < 0.41 00014135023 Swift PX, faint 2
59562.50 193 3.0 < 3.60 00014135024 Swift PX, faint 2
59566.74 614 3.0 < 1.60 00014135025 Swift PX, faint 2
59572.58 2635 3.0 < 0.38 00014135026 Swift PX, faint 2
59584.90 2886 3.0 < 0.39 00014135027 Swift PX, faint 2
59601.40 819 180 < 0.27 4595020114 NICER PX, rise 3
59602.56 3132 180 < 0.05 4595020115a NICER PX, rise 3
59603.21 1684 180 < 0.11 4595020116 NICER PX, rise 3
59604.76 432 120 < 0.21 4595020117 NICER PX, rise 3
59605.47 425 120 < 0.37 4595020118 NICER PX, rise 3
59607.27 765 120 < 0.19 4595020119 NICER PX, rise 3
59608.60 2918 120 < 0.08 4595020120 NICER PX, rise 3
59609.72 1146 80 < 0.23 4595020121 NICER PX, rise 3
59610.47 2152 80 < 0.13 4595020122 NICER PX, rise 3
59611.79 754 80 < 0.29 4595020123 NICER PX, rise 3
59612.47 758 80 < 0.08 4595020124a NICER PX, rise 3
59613.37 1443 80 < 0.19 4595020125 NICER PX, rise 3
59619.47 5808 4595020126a NICER PX, rise 3
59625.99 787 4595020127a,b NICER PX, rise 3
59626.06 1584 4595020128a,b NICER PX, rise 3
59633.19 3669 4595020129a NICER PX, rise 3
59635.13 10129 00014135099a Swift PX, rise 3
59640.03 3707 4604010104a NICER PX, rise 3
59640.03 3707 4604010105a NICER PX, rise 3
59642.13 4069 4604010106 NICER PX, plat 3
59643.68 2485 00014135033 Swift PX, plat 3
59645.48 2460 4604010107 NICER PX, plat 3
59648.20 1991 4604010108 NICER PX, plat 3
59650.19 2977 00014135034 Swift PX, plat 3
59651.90 668 4604010109 NICER PX, plat 3
59652.06 720 4604010110 NICER PX, plat 3
59654.83 1787 4604010111 NICER PX, plat 3
59656.16 2665 00014135036 Swift PX, plat 3
59657.15 — — 0884960601 XMM-Newton PX, plat 3
59663.82 3172 00014135037 Swift PX, plat 3
59670.56 3127 00014135038 Swift PX, plat 3
59678.08 4305 00014135039 Swift PX, plat 3
59684.37 2922 00014135040 Swift PX, plat 3
59691.98 6391 00014135041 Swift PX, plat 3
59698.54 2627 00014135042 Swift PX, plat 3
59705.30 3014 00014135043 Swift PX, drop 3
59752.82 1459 3.0 < 0.50 00014135044 Swift PX, faint 3
59756.64 2618 3.0 < 0.28 00014135045 Swift PX, faint 3
59759.19 3092 3.0 < 0.25 00014135046 Swift PX, faint 3
59766.09 2668 3.0 < 0.31 00014135047 Swift PX, faint 3
59773.49 2680 3.0 < 0.43 00014135048 Swift PX, faint 3
59780.34 3377 3.0 < 0.25 00014135049 Swift PX, rise 4
59787.41 2976 3.0 < 0.40 00014135050 Swift PX, rise 4
59794.63 2720 3.0 < 0.51 00014135051 Swift PX, rise 4
59801.23 4023 00014135052a Swift PX, rise 4
59806.58 2627 < 0.15 5202950108a NICER PX, rise 4
59811.17 187 5202950109a NICER PX, rise 4
59811.48 3179 00014135053a Swift PX, rise 4
59813.97 366 5202950110a NICER PX, rise 4
59814.03 256 5202950111a NICER PX, rise 4
59814.12 9662 0884962601a XMM-Newton PX, rise 4
59819.86 2570 00014135455 Swift PX, plat 4
59825.17 3384 00014135056 Swift PX, plat 4
59828.19 3303 5202950114 NICER PX, plat 4
59832.46 3117 00014135057 Swift PX, plat 4
59839.22 2647 00014135058 Swift PX, plat 4
59839.53 2717 5202950115 NICER PX, plat 4
59842.32 1380 5202950116 NICER PX, plat 4
59845.39 1529 5202950117 NICER PX, plat 4
59846.51 2605 00014135059 Swift PX, plat 4
59847.94 841 5202950118 NICER PX, plat 4
59848.10 2940 5202950119 NICER PX, plat 4
59851.44 1555 5202950120 NICER PX, plat 4
59852.96 341 3.0 < 0.73 5202950121 NICER PX, plat 4
59853.86 2640 00014135060 Swift PX, plat 4
59857.19 2144 5202950123 NICER PX, plat 4
59860.20 1766 5202950124 NICER PX, plat 4
59860.82 2555 00014135061 Swift PX, plat 4
59863.58 4048 5202950125 NICER PX, plat 4
59867.30 2122 5202950127 NICER PX, plat 4
59869.51 977 5202950128 NICER PX, plat 4
59872.21 392 3.0 < 0.56 5202950129 NICER PX, plat 4
59874.88 2650 00014135062 Swift PX, plat 4
59874.91 2416 5202950130 NICER PX, plat 4
59875.49 316 3.0 < 0.33 5202950131 NICER PX, plat 4
59875.49 1211 5202950131 NICER PX, plat 4
59876.52 1326 5202950132 NICER PX, plat 4
59876.52 459 5202950132 NICER PX, plat 4
59877.30 2150 5202950133 NICER PX, plat 4
59877.30 1266 5202950133 NICER PX, plat 4
59878.36 1955 5202950134 NICER PX, drop 4
59879.59 3164 3.0 < 0.55 5202950135 NICER PX, drop 4
59879.59 1564 5202950135 NICER PX, drop 4
59881.55 1119 5202950136 NICER PX, drop 4
59881.55 3311 5202950136 NICER PX, drop 4
59882.80 8366 14136364 Swift PX, drop 4
59884.59 3046 < 0.11 5202950137 NICER PX, drop 4
59884.59 2552 3.0 < 0.14 5202950137 NICER PX, drop 4
59887.94 2868 3.0 < 0.36 00014135065 Swift PX, faint 4
59895.56 2688 3.0 < 0.35 00014135066 Swift PX, faint 4
59920.62 3455 3.0 < 0.31 00014135067 Swift PX, faint 4
59941.75 4054 3.0 < 0.32 00014135068 Swift PX, faint 4
59962.62 3984 3.0 < 0.23 00014135069 Swift PX, faint 4
59980.96 2963 200 < 0.25 00014135070 Swift PX, rise 5
59985.53 15381 0915390401a XMM-Newton PX, rise 5
59990.59 2926 100 < 0.67 00014135071 Swift PX, rise 5
59999.79 3384 00014135072 Swift PX, rise 5
60007.25 11300 0915390501a XMM-Newton PX, rise 5
60009.45 2690 00014135073 Swift PX, rise 5
60021.39 3189 00014135074 Swift PX, plat 5
60023.00 9948 27737 Chandra PX, plat 5
60031.16 2680 00014135075 Swift PX, plat 5
60045.09 10059 27738 Chandra PX, plat 5
60048.22 9948 27798 Chandra PX, plat 5
60072.18 4795 00014135076 Swift PX, plat 5

Notes. MJD is the mid-date of the coverage for each observation; Texp is the effective exposure time in units of seconds. Exposure for XMM-Newton ObsID 0862770201 is calculated from combined MOS data, while the pn exposures are given for the other XMM-Newton observations; Tin/Γ: the inner temperature of a multi-colour disk or the photon index of the power law. A value without an uncertainty means the parameter is fixed at the given value during spectral fitting; fX, soft is the rest frame intrinsic 0.2 − 2.0 keV flux in units of 10−12 erg cm−2 s−1. The 3σ upper limits are given for observations in which the J0456−20is not detected; ObsID is the observation ID for each observation; Mission refers to the elescopes used to draw the data; X-ray phase marks the phases of the J0456−20during the observations; Cycle indicates the particular cycle of the X-ray flare when the data were taken. Quoted uncertainties are at the 90% confidence level. Upper limits are reported at 3σ.

a: observations used in modelling the profile of the PX, rise phase.

b: the X-ray spectral fitting results were from jointly fitting of the two consecutive observations.

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