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Table A.1

Summary of the observations.

Obs # LOFAR cycle LOFAR ID Date and time Duration Elevation Bad stations RFI masked
(UTC) (h) (#) (%)
55 Cnc [24 h]

1 5 L429868 2016-02-03 20:00 8 37–65 2 4.5
5 L432752 (1) 2016-02-27 18:03 9 30–65 2 100
2 5 L433872 2016-03-02 19:00 4 52–65 2 3.4
3 5 L441630 2016-03-28 18:00 6 40–65 2 5.9
4 5 L527649 2016-07-31 08:00 3 40–60 2 7.1
5 5 L554093 2016-10-22 03:00 3 45–65 1 5.7

υ And [45 h]

1 6 L545197 2016-09-08 00:00 5 58–78 2 4.7
2 6 L545213 2016-09-09 00:00 5 58–78 1 2.9
3 6 L545209 2016-09-10 00:00 5 58–78 1 5.2
4 6 L547657 2016-09-24 22:00 5 58–78 1 3.4
5 6 L547653 2016-09-25 23:00 5 55–78 1 3.4
6 6 L547649 2016-09-26 22:00 5 58–78 1 4.1
7 6 L547645 2016-09-28 23:00 5 55–78 1 4.0
8 6 L551195 2016-10-10 22:02 5 55–78 2 4.3
9 6 L552145 2016-10-13 22:00 5 55–78 2 5.3

τ Boo [20 h]

1 7 L569131 2017-02-18 01:12 3 45–53 2 6.3
2 7 L569127 2017-02-22 01:00 2.5 45–55 2 4.6
3 7 L569123 2017-02-26 01:16 3 48–55 2 5.6
4 7 L569119 2017-02-27 01:16 2.5 48–55 2 6.2
5 7 L570729 2017-03-01 01:16 3 50–55 2 6.4
6 7 L570725 2017-03-06 01:00 3 50–55 1 4.7
7 7 L581807 2017-03-25 01:00 3 40–55 2 4.8

B0809+74 [197 min]

1 6 L545199 2016-09-07 23:49 0.17 38 2 2.5
2 6 L545215 2016-09-08 23:49 0.17 38 1 3.1
3 6 L545211 2016-09-09 23:49 0.17 38 1 4.5
4 6 L547659 2016-09-24 21:49 0.17 38 1 3.2
5 6 L547655 2016-09-25 22:49 0.17 39 1 2.8
6 6 L547651 2016-09-26 21:49 0.17 38 1 6.1
7 6 L547647 2016-09-28 22:49 0.17 39 1 2.8
8 6 L551197 2016-10-11 03:03 0.17 52 2 6.2
9 6 L552143 2016-10-13 21:49 0.17 39 2 5.9
10 7 L569129 2017-02-18 00:56 0.25 67 2 5.9
11 7 L569125 2017-02-22 00:44 0.25 67 2 2.9
12 7 L569121 2017-02-26 01:00 0.25 65 2 4.4
13 7 L569117 2017-02-27 01:00 0.25 65 2 4.9
14 7 L570727 2017-03-01 01:00 0.25 65 2 3.9
15 7 L570723 2017-03-06 00:44 0.25 64 1 3.5
16 7 L581805 2017-03-25 00:44 0.25 60 2 4.1

Notes. Column 1: observation number. Column 2: LOFAR cycle. Column 3: LOFAR observation ID. Column 4: date and start time of the observation (UTC). Column 5: duration of the observation. Column 6: target elevation range. Column 7: number of bad stations present during the observation found by examining the station inspection plots. Column 8: amount of RFI masked by the BOREALIS pipeline. (1) This observation was not use in the analysis due to near-continuous RFI at all frequencies for the entire observing period. In addition, during this observation, there was also an antenna cable delay compensation issue (communication from ASTRON Radio Observatory staff).

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