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Table A.1.

Swift monitoring: MJD, UT date, XRT 0.3–10 keV count rates (CR), hardness ratios (HR1), X-ray photon index Γ, the absorption corrected 0.3–10 keV X-ray flux in units of 10−12 erg s−1 cm−2, Cash Statistic (CSTAT), and degree of freedom (dof).

MJD UT date CR HR1 Γpl XRT Flux CSTAT dof
middle of the exposure
54266.1750 2007-06-15 04:12 0.286±0.011 +0.208±0.024 1.76±0.07 11.54±0.47 363.17 373
54312.4792 2007-07-31 11:30 0.238±0.008 +0.178±0.028 1.85±0.07 8.26±0.30 276.78 341
54362.5389 2007-09-19 12:56 0.086±0.004 +0.386±0.051 1.51±0.12 3.80±0.33 172.71 234
54363.6139 2007-09-20 14:44 0.079±0.003 +0.255±0.044 1.70±0.11 3.15±0.18 240.75 246
54676.2875 2008-07-29 06:54 0.288±0.020 +0.311±0.055 1.57±0.16 12.71±1.25 136.61 161
55092.4722 2009-09-18 11:20 0.340±0.007 +0.138±0.015 1.81±0.04 11.82±0.28 535.02 541
56492.4166 2013-07-20 10:13 0.073±0.008 +0.305±0.096 1.55±0.27 3.42±0.30 65.79 74
56555.8861 2013-09-20 21:16 0.149±0.018 +0.241±0.127 1.64±0.34 6.40±1.02 50.82 53
57577.5396 2016-07-08 12:57 0.051±0.003 +0.345±0.056 1.61±0.16 2.22±0.34 161.54 151
57855.7061 2017-04-12 16:56 0.037±0.009 +0.212±0.240 —- —- 12.77 13
57855.8778 2017-04-12 21:04 0.045±0.010 +0.367±0.210 —- —- 18.92 16
57864.5097 2017-04-21 12:14 0.045±0.010 +0.057±0.177 —- —- 19.66 23
57880.2952 2017-05-07 07:05 0.040±0.008 +0.562±0.136 —- —- —- 27
57891.1903 2017-05-18 04:34 0.029±0.010 +0.383±0.232 — —- —- 10
57894.6028 2017-05-21 14:28 0.032±0.008 +0.554±0.153 —- —- 16.55 23
57895.0243 2017-05-23 00:35 0.024±0.006 -0.224±0.241 —- —- 13.85 14
57902.3451 2017-05-29 08:17 0.018±0.007 +0.348±0.310 — —– 9.25 4
57912.7708 2017-06-08 18:30 0.030±0.007 -0.002±0.220 —- —- 12.48 15
57915.9201 2017-06-11 22:06 0.018±0.004 +0.028±0.200 —- —- 18.40 26
57922.9986 2017-06-18 23:59 0.016±0.005 -0.211±0.310 — —- 6.61 10
57930.7806 2017-06-26 18:44 0.014±0.007 —- — —- 6.61 10
57937.6931 2017-07-03 16:37 0.021±0.006 +0.056±0.190 — —- 4.65 8
57944.0639 2017-07-10 01:32 0.022±0.006 +0.435±0.221 — —- 8.69 11
58705.4279 2019-08-11 10:16 0.403±0.033 +0.137±0.074 1.89±0.16 13.20±0.81 109.19 148
58740.6404 2019-09-14 15:22 0.200±0.018 +0.133±0.079 1.94±0.23 7.23±0.87 81.11 93
58746.2726 2019-09-20 06:32 0.355±0.042 +0.073±0.053 2.05±0.22 11.88±0.60 59.61 96
58759.5462 2019-10-03 13:06 0.298±0.030 +0.219±0.073 1.83±0.17 11.34±1.20 123.86 135
58761.9466 2019-10-05 22:43 0.400±0.048 +0.186±0.083 1.96±0.21 16.21±1.66 66.44 102
58769.3119 2019-10-13 07:29 0.161±0.014 +0.160±0.058 1.95±0.25 4.86±0.63 62.77 82
58769.4993 2019-10-13 11:59 0.179±0.014 +0.000±0.190 1.71±0.20 8.16±0.95 86.33 116
58770.7026 2019-10-14 16:51 0.148±0.013 +0.056±0.094 2.04±0.25 4.05±0.50 64.34 78
58779.6649 2019-10-23 15:57 0.303±0.028 +0.257±0.093 1.96±0.24 10.74±1.33 75.31 84
58782.0028 2019-10-26 00:04 0.337±0.049 +0.355±0.135 1.41±0.44 19.04±3.43 26.61 35
58792.7181 2019-11-05 17:14 0.265±0.016 +0.095±0.064 1.90±0.14 9.37±0.85 157.88 179
58793.4931 2019-11-06 11:50 0.266±0.016 +0.108±0.099 1.82±0.24 18.47±1.29 64.24 81
58796.5980 2019-11-09 14:21 0.306±0.022 +0.198±0.049 1.73±0.16 10.84±0.99 120.29 145
58804.5670 2019-11-17 13:36 0.154±0.015 +0.091±0.076 1.98±0.25 5.59±0.58 50.00 75
58823.3669 2019-12-06 08:48 0.127±0.015 +0.062±0.125 1.84±0.30 4.46±0.59 40.26 60
58830.8669 2019-12-13 20:48 0.152±0.014 +0.362±0.081 1.67±0.22 5.99±0.79 79.51 87
58837.5791 2019-12-20 13:53 0.291±0.033 +0.070±0.087 1.87±0.23 9.82±0.49 58.68 83
58851.0457 2020-01-03 01:05 0.233±0.018 +0.247±0.072 1.71±0.17 9.78±0.52 104.34 142
58858.2817 2020-01-10 06:45 0.308±0.023 +0.168±0.071 1.92±0.17 9.32±0.96 114.75 151
59312.1285 2021-04-08 03:05 0.085±0.013 +0.121±0.150 1.95±0.40 3.30±0.65 33.05 32
59313.2613 2021-04-09 06:16 0.138±0.014 +0.341±0.088 1.61±0.25 5.89±0.67 63.70 76
59758.5143 2022-06-28 12:20 0.567±0.033 +0.081±0.041 1.94±0.11 16.74±1.01 213.27 238
59855.6494 2022-10-03 15:35 0.412±0.035 +0.173±0.067 1.73±0.16 14.83±1.62 115.57 158
59859.3600 2022-10-07 08:38 0.228±0.032 +0.231±0.131 1.78±0.35 8.86±1.26 48.10 41
59918.0988 2022-12-05 02:22 0.161±0.010 +0.108±0.054 1.77±0.14 6.65±0.45 139.92 142
60042.2293 2023-04-08 05:30 0.397±0.023 +0.169±0.047 1.82±0.12 13.56±0.72 190.73 225
60046.5968 2023-04-12 14:19 0.275±0.015 +0.117±0.101 1.84±0.12 10.61±0.66 203.92 212
60047.2907 2023-04-13 06:58 0.265±0.018 +0.397±0.065 1.53±0.17 12.84±1.09 123.22 147
60051.1603 2023-04-17 03:50 0.343±0.019 +0.184±0.051 1.84±0.13 12.66±0.60 159.68 215
60052.3498 2023-04-18 08:23 0.287±0.015 +0.145±0.094 1.86±0.12 11.22±0.77 185.55 214
60063.6655 2023-04-29 15:58 0.142±0.012 +0.232±0.092 1.74±0.21 5.45±0.49 90.23 102
60770.7224 2025-04-05 17:20 0.205±0.011 +0.219±0.056 1.70±0.14 7.92±0.48 159.37 198
60772.1852 2025-04-07 04:26 0.149±0.007 +0.253±0.052 1.75±0.12 5.88±0.46 168.79 234
60773.2583 2025-04-08 06:11 0.218±0.020 +0.282±0.102 1.71±0.23 8.61±0.96 72.17 90
60834.9438 2025-06-08 22:39 0.737±0.047 +0.275±0.049 1.77±0.12 23.96±1.45 217.09 228
60846.8062 2025-06-20 19:20 0.404±0.029 +0.274±0.053 1.66±0.13 16.31±1.27 180.34 204
60860.2544 2025-07-04 06:06 0.136±0.012 +0.179±0.089 1.78±0.23 5.33±0.58 77.74 94
60874.9277 2025-07-18 22:15 0.396±0.033 +0.093±0.067 2.02±0.17 12.13±0.98 119.12 144

Notes. 1 The hardness ratio is defined as HR = h a r d − s o f t h a r d + s o f t Mathematical equation: $ \frac{hard-soft}{hard+soft} $, where soft and hard are the background-corrected counts in the 0.3–1.0 keV and 1.0–10.0 keV bands, respectively

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