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Table 5

Expected outburst caused by 255P/Levy.

Year Trail λ0 yyyy-mm-ddThh:mm:ss ZHR
(°)

2001 1963 279.132 2001-12-30T18:37:00 1
2001 1975 279.765 2001-12-31T12:01:00 3
2001 1980 279.772 2001-12-31T15:00:00 2
2001 1985 279.828 2001-12-31T11:24:00 11
2001 1991 279.806 2001-12-31T10:44:00 13
2002 1963 278.914 2002-10-20T14:56:00 1
2002 1980 279.805 2002-12-31T10:23:00 2
2002 1985 279.808 2002-12-31T10:40:00 15
2002 1991 279.789 2002-12-31T10:24:00 6
2006 1963 279.285 2006-12-31T08:01:00 1
2007 1963 279.321 2007-12-31T07:04:00 1
2012 1980 279.803 2012-12-31T06:25:00 6
2013 1980 279.882 2013-12-31T08:16:00 2
2014 1969 264.766 2014-12-17T00:07:00 1
2017 1930 342.277 2017-09-21T18:39:00 1
2017 1941 279.510 2017-12-30T03:41:00 1
2018 1969 278.254 2018-12-29T07:29:00 1
2033 1975 275.526 2033-12-27T10:12:00 1
2033 1980 275.488 2033-12-27T10:06:00 1
2033 1985 275.452 2033-12-27T09:55:00 1
2033 1991 275.406 2033-12-27T09:54:00 1
2033 1996 275.346 2033-12-27T08:58:00 1
2034 1975 262.477 2034-12-13T22:22:00 1
2034 1980 261.456 2034-06-06T03:40:00 1
2034 1985 261.092 2034-04-05T17:02:00 1
2034 1991 260.269 2034-03-09T11:52:00 1
2035 1914 276.553 2035-01-09T07:59:00 1
2035 1952 271.463 2035-12-20T03:11:00 1
2039 1980 272.974 2039-12-25T01:51:00 1
2039 1991 272.131 2039-12-25T01:05:00 1

Notes. No unusual outburst was reported in 2006 and 2007. Columns: Year = the year of Earth’s collision with the trail, Trail = year of particle ejection from the given trail, λ0 = solar longitude in degrees, yyyy-mm-ddThh:mm:ss = date and time of the trail’s closest approach, ZHR = zenithal hourly rate.

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