Open Access
Table A.1.
X-ray observation log with observed and unabsorbed fluxes.
| X-ray Instrumenta | Obs.ID | Start | Stop | Exposure | Net Count Rateb | Fluxc (Obs / Unabs) |
|---|---|---|---|---|---|---|
| YYYY Mmm DD hh:mm:ss (TT) | (ks) | (counts s−1) | (×10−11 erg cm−2 s−1) | |||
| Swift/XRT (PC) | 00042728001 | 2012 May 12 02:18:11 | 2012 May 12 02:27:55 | 0.6 | < 0.007 | < 0.03–0.04 / < 0.9–0.2 |
| Swift/XRT (PC) | 00042729001 | 2012 May 13 05:35:25 | 2012 May 13 05:43:54 | 0.5 | < 0.007 | < 0.03–0.04 / < 0.9–0.2 |
| Swift/XRT (PC) | 01053220000 | 2021 Jun 3 10:53:43 | 2021 Jun 3 11:21:26 | 1.7 | 0.30±0.01 | 3.9±0.3 / 6.2±0.3 |
| NICER/XTI | 4202190101 | 2021 Jun 3 11:21:31 | 2021 Jun 3 18:52:20 | 2.5 | 3.88±0.05 | 4.7±0.1 / 8.2±0.1 |
| Swift/XRT (WT) | 00014352001 | 2021 Jun 4 07:52:37 | 2021 Jun 4 09:36:56 | 2.0 | 0.42±0.02 | 4.7±0.3 / 7.9±0.3 |
| Swift/XRT (WT) | 00014352002 | 2021 Jun 5 10:42:46 | 2021 Jun 5 15:46:20 | 4.9 | 0.41±0.01 | 4.8±0.2 / 8.0±0.2 |
| Swift/XRT (WT) | 00014352003 | 2021 Jun 7 12:08:15 | 2021 Jun 7 13:48:55 | 1.9 | 0.42±0.02 | 4.9±0.3 / 8.2±0.3 |
| Insight-HXMT/LE | P0414008001 | 2021 Jun 10 17:39:42 | 2021 Jun 12 17:31:52 | 22.2 | 1.36±0.02 | – |
| Swift/XRT (WT) | 00014352004 | 2021 Jun 11 11:46:41 | 2021 Jun 11 15:24:56 | 2.5 | 0.40±0.02 | 4.6±0.2 / 7.9±0.3 |
| Swift/XRT (WT) | 00014352005 | 2021 Jun 15 14:45:15 | 2021 Jun 15 16:34:55 | 1.6 | 0.41±0.02 | 4.8±0.3 / 8.0±0.4 |
| Swift/XRT (WT) | 00014352007 | 2021 Jun 21 15:17:01 | 2021 Jun 21 22:12:56 | 3.2 | 0.36±0.01 | 4.7±0.2 / 7.7±0.3 |
| Swift/XRT (PC) | 01057131000 | 2021 Jun 21 17:05:46 | 2021 Jun 21 17:30:08 | 1.5 | 0.32±0.02 | 3.7±0.2 / 5.8±0.3 |
| Swift/XRT (WT) | 00014352008 | 2021 Jun 24 16:38:23 | 2021 Jun 24 21:53:56 | 1.6 | 0.39±0.02 | 4.4±0.3 / 7.5±0.3 |
| Swift/XRT (WT) | 00014352009 | 2021 Jun 25 01:01:41 | 2021 Jun 25 11:46:56 | 1.7 | 0.38±0.02 | 4.3±0.3 / 7.3±0.3 |
| Swift/XRT (WT) | 00014352010 | 2021 Jun 26 14:43:25 | 2021 Jun 26 14:58:55 | 0.9 | 0.36±0.02 | 4.0±0.3 / 7.1±0.4 |
| Swift/XRT (WT) | 00014352011 | 2021 Jun 27 03:41:23 | 2021 Jun 27 13:16:56 | 2.1 | 0.38±0.02 | 4.2±0.2 / 7.1±0.3 |
| Swift/XRT (WT) | 00014352013 | 2021 Jun 30 01:31:24 | 2021 Jun 30 11:36:56 | 0.9 | 0.39±0.03 | 4.2±0.4 / 6.6±0.3 |
| Swift/XRT (WT) | 00014352014 | 2021 Jul 2 06:09:58 | 2021 Jul 2 09:37:56 | 2.7 | 0.35±0.01 | 4.2±0.2 / 6.8±0.3 |
| Swift/XRT (WT) | 00014352015 | 2021 Jul 4 02:40:47 | 2021 Jul 4 23:30:56 | 0.8 | 0.35±0.03 | 4.0±0.4 / 7.2±0.5 |
| Swift/XRT (WT) | 00014352016 | 2021 Jul 6 05:48:11 | 2021 Jul 6 06:07:56 | 1.2 | 0.34±0.02 | 4.1±0.3 / 6.9±0.4 |
| Swift/XRT (WT) | 00014352017 | 2021 Jul 8 13:48:13 | 2021 Jul 8 13:53:56 | 0.3 | 0.42±0.04 | 4.3±0.6 / 7.7±0.7 |
| Swift/XRT (WT) | 00014352018 | 2021 Jul 16 00:05:15 | 2021 Jul 17 03:15:56 | 2.1 | 0.35±0.02 | 3.9±0.2 / 6.8±0.3 |
| Swift/XRT (WT) | 00014352019 | 2021 Jul 20 06:01:59 | 2021 Jul 20 07:59:56 | 3.0 | 0.23±0.01 | 4.0±0.2 / 6.8±0.3 |
| Swift/XRT (WT) | 00014352020 | 2021 Jul 24 16:44:13 | 2021 Jul 24 16:52:56 | 0.5 | 0.45±0.04 | 5.6±0.6 / 8.6±0.7 |
| Swift/XRT (WT) | 00014352021 | 2021 Jul 26 21:24:21 | 2021 Jul 26 21:38:56 | 0.8 | 0.35±0.03 | 4.3±0.4 / 7.1±0.5 |
| Swift/XRT (WT) | 00014352022 | 2021 Jul 31 11:09:50 | 2021 Jul 31 20:46:56 | 0.4 | 0.25±0.03 | 3.2±0.5 / 5.6±0.6 |
| Swift/XRT (WT) | 00014352023 | 2021 Aug 1 22:12:39 | 2021 Aug 2 23:48:56 | 1.0 | 0.26±0.02 | 3.7±0.3 / 6.9±0.5 |
| Swift/XRT (WT) | 00014352024 | 2021 Aug 4 21:50:55 | 2021 Aug 4 21:55:56 | 0.3 | 0.11±0.04 | 2.0±0.6 / 3.9±0.7 |
| Swift/XRT (WT) | 00014352025 | 2021 Aug 7 01:00:00 | 2021 Aug 7 01:03:56 | 0.2 | 0.27±0.05 | 3.2±0.7 / 6.1±0.8 |
| Swift/XRT (WT) | 00014352026 | 2021 Aug 10 02:01:55 | 2021 Aug 10 10:09:56 | 1.1 | 0.32±0.02 | 4.3±0.4 / 6.8±0.4 |
| Swift/XRT (WT) | 00014352027 | 2021 Aug 11 00:29:41 | 2021 Aug 11 18:18:56 | 1.2 | 0.34±0.02 | 4.3±0.4 / 6.8±0.4 |
| Swift/XRT (WT) | 00014352028 | 2021 Aug 14 03:17:21 | 2021 Aug 14 23:59:56 | 1.9 | 0.33±0.02 | 3.6±0.2 / 6.2±0.3 |
| Swift/XRT (WT) | 00014352029 | 2021 Aug 23 11:50:03 | 2021 Aug 23 13:52:56 | 1.8 | 0.26±0.01 | 3.6±0.3 / 5.9±0.3 |
| Swift/XRT (PC) | 01070298000 | 2021 Aug 25 06:55:27 | 2021 Aug 25 08:18:42 | 1.7 | 0.29±0.01 | 3.4±0.2 / 5.3±0.3 |
| Swift/XRT (WT) | 00014352030 | 2021 Aug 28 03:22:22 | 2021 Aug 28 08:09:56 | 0.9 | 0.30±0.02 | 3.8±0.4 / 6.1±0.4 |
| Swift/XRT (WT) | 00014352031 | 2021 Aug 29 09:32:37 | 2021 Aug 30 03:13:56 | 1.7 | 0.31±0.02 | 3.6±0.2 / 6.2±0.3 |
| Swift/XRT (WT) | 00014352032 | 2021 Sep 3 09:10:14 | 2021 Sep 3 12:39:56 | 2.7 | 0.30±0.01 | 4.1±0.2 / 6.5±0.3 |
| Swift/XRT (PC) | 01072706000 | 2021 Sep 10 10:13:45 | 2021 Sep 10 10:34:51 | 1.3 | 0.20±0.01 | 3.7±0.4 / 5.9±0.4 |
| Swift/XRT (WT) | 00014352034 | 2021 Sep 13 05:02:19 | 2021 Sep 13 16:34:56 | 2.7 | 0.29±0.01 | 3.6±0.2 / 6.1±0.2 |
| Swift/XRT (WT) | 00014352035† | 2021 Sep 17 17:19:51 | 2021 Sep 17 17:42:14 | 1.3 | 0.26±0.02 | 3.1±0.2 / 5.3±0.3 |
| Swift/XRT (WT) | 00014352036† | 2021 Sep 22 01:03:52 | 2021 Sep 22 01:09:56 | 0.4 | 0.28±0.04 | 3.1±0.2 / 5.3±0.3 |
| Swift/XRT (WT) | 00014352037 | 2021 Sep 24 00:31:59 | 2021 Sep 24 13:47:56 | 2.8 | 0.19±0.01 | 3.1±0.2 / 5.2±0.3 |
| Swift/XRT (WT) | 00014352038 | 2021 Sep 30 09:37:51 | 2021 Sep 30 11:10:56 | 0.6 | 0.27±0.03 | 3.5±0.4 / 6.1±0.5 |
| Swift/XRT (WT) | 00014352039 | 2021 Oct 5 04:01:23 | 2021 Oct 5 21:54:56 | 2.4 | 0.27±0.01 | 3.4±0.2 / 5.4±0.3 |
| Swift/XRT (WT) | 00014352040‡ | 2021 Oct 7 08:36:19 | 2021 Oct 8 23:03:56 | 3.1 | 0.28±0.01 | 3.2±0.1 / 5.5±0.1 |
| NuSTAR/FPMA | 80702313006‡ | 2021 Oct 7 14:31:09 | 2021 Oct 8 19:16:09 | 51.6 | 0.706±0.004 | 3.2±0.1 / 5.5±0.1 |
| NuSTAR/FPMB | 80702313006‡ | 2021 Oct 7 14:31:09 | 2021 Oct 8 19:16:09 | 51.5 | 0.640±0.004 | 3.2±0.1 / 5.5±0.1 |
| Swift/XRT (WT) | 00014352041 | 2021 Oct 15 01:45:04 | 2021 Oct 15 22:25:56 | 2.7 | 0.26±0.01 | 3.1±0.2 / 5.2±0.2 |
| Swift/XRT (WT) | 00014352042 | 2021 Oct 22 01:01:02 | 2021 Oct 22 10:31:56 | 1.2 | 0.28±0.02 | 3.6±0.3 / 6.0±0.4 |
| Swift/XRT (PC) | 00014971001 | 2022 Jan 5 07:07:33 | 2022 Jan 5 21:42:52 | 3.2 | 0.18±0.01 | 2.2±0.1 / 3.5±0.2 |
| Swift/XRT (WT) | 00014971004 | 2022 Feb 19 11:22:27 | 2022 Feb 19 14:53:56 | 2.9 | 0.17±0.01 | 1.8±0.1 / 3.2±0.2 |
| Swift/XRT (WT) | 00014971005 | 2022 Mar 6 00:05:15 | 2022 Mar 6 19:35:56 | 2.2 | 0.13±0.01 | 1.9±0.2 / 3.2±0.2 |
| Swift/XRT (WT) | 00014971006 | 2022 Mar 21 15:38:22 | 2022 Mar 21 19:04:56 | 1.0 | 0.12±0.02 | 1.2±0.2 / 2.7±0.3 |
| Swift/XRT (WT) | 00014971007 | 2022 Apr 5 00:07:14 | 2022 Apr 5 17:45:56 | 2.4 | 0.13±0.01 | 1.9±0.2 / 3.0±0.2 |
| Swift/XRT (WT) | 00014971008 | 2022 Apr 20 14:15:53 | 2022 Apr 20 23:45:56 | 2.5 | 0.12±0.01 | 1.7±0.1 / 3.1±0.2 |
| Swift/XRT (WT) | 00014971009 | 2022 May 5 13:24:19 | 2022 May 5 15:37:56 | 2.7 | 0.12±0.01 | 1.7±0.1 / 2.8±0.2 |
| Swift/XRT (WT) | 00014971010 | 2022 May 20 10:23:49 | 2022 May 20 23:17:56 | 2.6 | 0.11±0.01 | 1.5±0.1 / 2.6±0.2 |
| Swift/XRT (WT) | 00014971011† | 2022 Jun 4 05:15:15 | 2022 Jun 4 08:42:56 | 1.2 | 0.11±0.02 | 1.6±0.2 / 2.5±0.2 |
| Swift/XRT (WT) | 00014971012† | 2022 Jun 6 17:52:38 | 2022 Jun 6 18:10:55 | 1.1 | 0.11±0.02 | 1.6±0.2 / 2.5±0.2 |
| Swift/XRT (WT) | 00014971013 | 2022 Jun 19 11:11:07 | 2022 Jun 19 13:04:56 | 2.6 | 0.14±0.01 | 1.5±0.2 / 2.4±0.2 |
| Swift/XRT (WT) | 00014971014 | 2022 Jul 4 02:54:17 | 2022 Jul 4 04:46:56 | 2.7 | 0.11±0.01 | 1.1±0.2 / 1.8±0.1 |
| Swift/XRT (WT) | 00014971015 | 2022 Jul 19 05:45:31 | 2022 Jul 19 09:19:56 | 2.9 | 0.08±0.01 | 0.9±0.1 / 1.8±0.1 |
| NICER/XTI | 5202190101† | 2022 Jul 21 19:10:00 | 2022 Jul 21 22:29:20 | 0.9 | 0.85±0.03 | 1.3±0.1 / 2.2±0.1 |
| NICER/XTI | 5202190102† | 2022 Jul 21 23:50:21 | 2022 Jul 22 03:07:20 | 0.7 | 0.96±0.04 | 1.3±0.1 / 2.2±0.1 |
| NICER/XTI | 5202190103 | 2022 Jul 27 07:38:20 | 2022 Jul 27 10:58:40 | 1.9 | 0.68±0.02 | 1.0±0.1 / 1.7±0.1 |
| NICER/XTI | 5202190104 | 2022 Jul 31 01:28:00 | 2022 Jul 31 03:25:40 | 1.2 | 0.79±0.11 | – |
| Swift/XRT (WT) | 00014971016 | 2022 Aug 3 05:18:41 | 2022 Aug 3 15:05:56 | 2.9 | 0.07±0.01 | 0.9±0.1 / 1.6±0.1 |
| NICER/XTI | 5202190105 | 2022 Aug 5 16:12:00 | 2022 Aug 5 20:45:20 | 2.4 | 0.78±0.04 | 1.0±0.1 / 1.8±0.1 |
| NICER/XTI | 5202190106 | 2022 Aug 7 20:28:16 | 2022 Aug 7 23:53:20 | 1.4 | 1.46±0.04 | 2.3±0.1 / 3.7±0.1 |
| NICER/XTI | 5202190107† | 2022 Aug 9 23:31:53 | 2022 Aug 9 23:41:06 | 0.4 | 0.85±0.05 | 1.1±0.1 / 1.8±0.1 |
| NICER/XTI | 5202190108† | 2022 Aug 10 01:04:40 | 2022 Aug 10 01:14:06 | 0.4 | 0.80±0.05 | 1.1±0.1 / 1.8±0.1 |
| NICER/XTI | 5202190109 | 2022 Aug 11 11:17:20 | 2022 Aug 11 14:36:56 | 2.5 | 0.90±0.02 | 1.4±0.1 / 2.2±0.1 |
| NICER/XTI | 5202190110 | 2022 Aug 13 18:49:38 | 2022 Aug 13 19:04:58 | 0.6 | 0.80±0.04 | 1.2±0.1 / 1.9±0.1 |
| NICER/XTI | 5202190111† | 2022 Aug 15 00:16:20 | 2022 Aug 15 00:51:40 | 0.9 | 0.64±0.04 | 1.2±0.1 / 1.8±0.1 |
| NICER/XTI | 5202190112† | 2022 Aug 17 00:31:58 | 2022 Aug 17 02:26:38 | 0.6 | 0.80±0.05 | 1.2±0.1 / 1.8±0.1 |
| Swift/XRT (PC) | 00014971017 | 2022 Aug 18 00:15:37 | 2022 Aug 18 22:44:52 | 2.5 | 0.071±0.005 | 0.9±0.1 / 1.5±0.1 |
| Swift/XRT (PC) | 00014971018 | 2022 Sep 2 14:14:02 | 2022 Sep 2 16:13:54 | 2.7 | 0.067±0.005 | 0.9±0.1 / 1.3±0.1 |
| Swift/XRT (PC) | 00014971019 | 2022 Sep 16 17:25:36 | 2022 Sep 17 21:42:52 | 1.5 | 0.071±0.007 | 1.2±0.3 / 1.7±0.3 |
| Swift/XRT (PC) | 00014971020 | 2022 Sep 21 12:00:56 | 2022 Sep 21 13:42:52 | 1.1 | 0.042±0.006 | 0.7±0.2 / 1.1±0.2 |
| Swift/XRT (PC) | 00014971021 | 2022 Oct 2 21:20:51 | 2022 Oct 2 23:10:53 | 2.8 | 0.067±0.005 | 0.8±0.1 / 1.3±0.1 |
| Swift/XRT (PC) | 00014971022 | 2022 Oct 17 03:11:56 | 2022 Oct 17 09:52:51 | 3.2 | 0.053±0.004 | 1.1±0.2 / 1.5±0.2 |
| Swift/XRT (PC) | 00014971023 | 2023 Feb 8 05:27:27 | 2023 Feb 8 20:08:53 | 2.7 | 0.036±0.004 | 0.4±0.1 / 0.7±0.1 |
| Swift/XRT (PC) | 00014971024 | 2023 Feb 22 00:03:15 | 2023 Feb 23 23:29:52 | 2.7 | 0.035±0.004 | 0.5±0.1 / 0.7±0.1 |
| Swift/XRT (PC) | 00014971025 | 2023 Mar 10 11:21:24 | 2023 Mar 10 18:03:54 | 2.7 | 0.027±0.003 | 0.29±0.04 / 0.6±0.1 |
| Swift/XRT (PC) | 00014971026† | 2023 Mar 25 04:15:22 | 2023 Mar 25 10:55:52 | 1.6 | 0.019±0.004 | 0.19±0.04 / 0.4±0.1 |
| Swift/XRT (PC) | 00014971027† | 2023 Mar 29 20:55:49 | 2023 Mar 29 21:16:52 | 1.3 | 0.022±0.004 | 0.19±0.04 / 0.4±0.1 |
| Swift/XRT (PC) | 00014971028 | 2023 Apr 9 14:05:29 | 2023 Apr 9 20:43:53 | 2.7 | 0.020±0.003 | 0.3±0.1 / 0.4±0.1 |
| Swift/XRT (PC) | 00014971029 | 2023 Apr 24 00:27:15 | 2023 Apr 24 14:58:52 | 2.7 | 0.020±0.003 | 0.3±0.1 / 0.5±0.1 |
| Swift/XRT (PC) | 00014971030† | 2023 May 09 06:48:03 | 2023 May 09 21:32:53 | 1.7 | 0.011±0.003 | 0.19±0.04 / 0.4±0.1 |
| Swift/XRT (PC) | 00014971031† | 2023 May 24 03:03:39 | 2023 May 24 23:42:51 | 2.3 | 0.015±0.003 | 0.19±0.04 / 0.4±0.1 |
| Swift/XRT (PC) | 00014971032† | 2023 Jun 08 10:33:35 | 2023 Jun 08 15:45:52 | 2.5 | 0.021±0.003 | 0.26±0.04 / 0.42±0.04 |
| Swift/XRT (PC) | 00014971033† | 2023 Jun 23 10:40:47 | 2023 Jun 24 02:50:52 | 2.8 | 0.018±0.003 | 0.26±0.04 / 0.42±0.04 |
| Swift/XRT (PC) | 00014971034† | 2023 Jul 08 07:57:13 | 2023 Jul 08 17:49:53 | 2.3 | 0.011±0.003 | 0.18±0.03 / 0.30±0.04 |
| Swift/XRT (PC) | 00014971035† | 2023 Jul 23 05:07:40 | 2023 Jul 24 09:32:52 | 1.6 | 0.018±0.004 | 0.18±0.03 / 0.30±0.04 |
| Swift/XRT (PC) | 00014971036† | 2023 Jul 26 02:40:36 | 2023 Jul 26 18:50:52 | 1.8 | 0.016±0.003 | 0.18±0.03 / 0.30±0.04 |
| Swift/XRT (PC) | 00014971037† | 2023 Aug 07 03:23:20 | 2023 Aug 07 17:48:53 | 3.2 | 0.012±0.002 | 0.14±0.03 / 0.24±0.03 |
| Swift/XRT (PC) | 00014971038† | 2023 Aug 22 12:51:21 | 2023 Aug 22 19:29:52 | 2.5 | 0.010±0.002 | 0.14±0.03 / 0.24±0.03 |
| Swift/XRT (PC) | 00014971039† | 2023 Sep 6 01:57:21 | 2023 Sep 6 11:34:52 | 2.0 | 0.010±0.002 | 0.09±0.02 / 0.17±0.02 |
| Swift/XRT (PC) | 00014971040† | 2023 Sep 21 04:51:56 | 2023 Sep 21 05:08:51 | 1.0 | 0.007±0.003 | 0.09±0.02 / 0.17±0.02 |
| Swift/XRT (PC) | 00014971041† | 2023 Sep 26 06:42:47 | 2023 Sep 26 07:10:52 | 1.7 | 0.007±0.002 | 0.09±0.02 / 0.17±0.02 |
| Swift/XRT (PC) | 00014971042† | 2023 Oct 6 05:57:57 | 2023 Oct 6 07:54:52 | 0.7 | 0.004±0.002 | 0.09±0.02 / 0.17±0.02 |
| Swift/XRT (PC) | 00014971043† | 2023 Oct 12 00:09:16 | 2023 Oct 12 11:26:52 | 1.5 | 0.014±0.003 | 0.09±0.02 / 0.17±0.02 |
| Swift/XRT (PC) | 00014971044† | 2023 Oct 21 04:22:16 | 2023 Oct 21 12:38:54 | 2.3 | 0.006±0.002 | 0.09±0.02 / 0.17±0.02 |
a The instrumental setup is indicated in brackets: PC = photon counting, WT = windowed timing.b The count rate is in the 0.3–10 keV energy range, except for NICER (1.5–8 keV for the first observation and 2–6 keV for the remaining ones), Insight-HXMT/LE (2.5–6.5 keV), and NuSTAR (3–20 keV). The upper limits are quoted at 3σ c.l. and are derived from the stacked data.c The flux is in the 0.3–10 keV energy range. The upper limits for the archival observations are computed from the stack of the data assuming an absorbed blackbody spectrum with NH = 8.4 × 1022 cm−2 and kTBB = 0.3–0.5 keV, and are quoted at 3σ c.l..† Data of these observations were merged for the spectral analysis.‡ The spectra of these observations were fitted jointly. For more details, see Sect. 3.2.
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