Open Access

Table A.2.

Swift/XRT observation log of SDSS J164100.10+345452.7.

Sequence Date Start time (UT) End time (UT) Exposure
MJD (yyyy-mm-dd hh:mm:ss) (yyyy-mm-dd hh:mm:ss) (s)
00011395055 59245.65652 2021-01-31 14:00:52 2021-01-31 17:29:53 2698
00011395056 59252.36437 2021-02-07 02:13:29 2021-02-07 15:15:52 2848
00011395057 59259.69355 2021-02-14 15:41:32 2021-02-14 17:35:52 2743
00011395058 59266.49648 2021-02-21 00:36:59 2021-02-21 23:12:53 2776
00011395059 59273.73557 2021-02-28 15:49:32 2021-02-28 19:28:53 2778
00011395060 59280.93881 2021-03-07 21:33:52 2021-03-07 23:29:54 2846
00011395061 59287.71487 2021-03-14 14:32:54 2021-03-14 19:45:54 2209
00011395062 59294.52133 2021-03-21 09:20:25 2021-03-21 15:40:52 2944
00011395063 59301.51512 2021-03-28 11:26:00 2021-03-28 13:18:52 1745
00011395064 59308.35169 2021-04-04 07:29:58 2021-04-04 09:22:53 2630
00011395065 59315.91731 2021-04-11 21:04:58 2021-04-11 22:56:52 2658
00011395066 59322.55583 2021-04-18 12:21:55 2021-04-18 14:18:51 2994
00011395067 59329.76132 2021-04-25 16:32:42 2021-04-25 19:59:53 2357
00011395068 59336.60402 2021-05-02 09:31:43 2021-05-02 19:27:51 1705
00011395069 59339.52500 2021-05-05 12:33:08 2021-05-05 12:38:51 344
00011395070 59343.31562 2021-05-09 01:05:06 2021-05-09 14:03:52 2964
00011395071 59350.73554 2021-05-16 15:54:28 2021-05-16 19:23:52 2389
00011395072 59357.94372 2021-05-23 21:47:01 2021-05-23 23:30:53 2101
00011395073 59360.49007 2021-05-26 11:37:31 2021-05-26 11:53:51 980
00011395074 59363.58868 2021-05-29 00:29:31 2021-05-30 03:45:52 1971
00011395075 59371.64900 2021-06-06 13:47:13 2021-06-06 17:21:53 2209
00011395076 59379.58760 2021-06-14 13:14:24 2021-06-14 14:57:53 2131
00011395077 59385.45068 2021-06-20 07:30:58 2021-06-20 14:06:59 1522
00011395078 59388.67917 2021-06-23 15:25:06 2021-06-23 17:10:53 1439
00011395079 59392.72476 2021-06-27 16:29:23 2021-06-27 18:17:54 2733
00011395080 59399.82883 2021-07-04 17:12:08 2021-07-04 22:34:53 2866
00011395081 59406.49739 2021-07-11 10:11:35 2021-07-11 13:40:52 2788
00011395082 59413.33648 2021-07-18 06:15:08 2021-07-18 09:53:54 2455
00011395083 59420.43584 2021-07-25 10:14:19 2021-07-25 10:40:54 1595
00011395084 59423.62380 2021-07-28 14:46:40 2021-07-28 15:09:52 1392

Notes. For the second year of monitoring, we report the observing sequence, date (MJD of the middle of the observation), start and end times (UTC), and XRT exposure time.

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