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Table A.1

Derived parameters of FD for events.

2001 April 11

Shock Arrival : 2001 Apr. 11 14:06
Magnetic Cloud Start : 2001 Apr. 11 23:00 End : 2001 Apr. 12 18:00

Quantity NW N NE W V E SW S SE

FD Magnitude (%) 1.02 1.12 0.91 1.38 1.40 1.05 1.36 1.29 0.93
Cutoff Rigidity (GV) 15.5 18.7 24.0 14.3 17.2 22.4 14.4 17.6 22.4
FD Onset (UT) 12:57 13:55 16:04 11:16 12:00 12:57 08:24 10:20 12:28
FD minimum (UT) 19:00 19:00 19:00 17:00 18:00 18:00 14:00 15:00 16:00

2001 August 17

Shock Arrival : 2001 Aug. 17 11:00
Magnetic Cloud Start : 2001 Aug. 18 00:00 End : 2001 Aug. 18 21:30

Quantity NW N NE W V E SW S SE

FD Magnitude (%) 1.17 1.12 0.83 0.97 1.03 0.79 1.12 1.07 0.80
Cutoff Rigidity (GV) 15.5 18.7 24.0 14.3 17.2 22.4 14.4 17.6 22.4
FD Onset (UT) 04:19 01:55 01:12 23:17 22:34 22:05 00:00 23:31 23:17
FD minimum (UT) 4:00 3:00 2:00 6:00 5:00 5:00 23:00 22:00 20:00

2001 November 24

Shock Arrival : 2001 Nov. 24 06:00
Magnetic Cloud Start : 2001 Nov. 24 17:00 End : 2001 Nov. 25 13:00

Quantity NW N NE W V E SW S SE

FD Magnitude (%) 1.42 1.34 0.94 1.67 1.56 1.16 1.34 1.36 1.10
Cutoff Rigidity (GV) 15.5 18.7 24.0 14.3 17.2 22.4 14.4 17.6 22.4
FD Onset (UT) 03:07 03:21 03:07 04:05 03:21 02:52 04:05 03:07 01:24
FD minimum (UT) 17:00 15:00 16:00 14:00 15:00 17:00 15:00 16:00 19:00

2002 September 7

Shock Arrival : 2002 Sep. 7 14:20
Magnetic Cloud Start : 2002 Sep. 7 17:00 End : 2002 Sep. 8 16:30

Quantity NW N NE W V E SW S SE

FD Magnitude (%) 0.41 0.59 0.63 0.89 0.97 0.83 1.08 1.07 0.84
Cutoff Rigidity (GV) 15.5 18.7 24.0 14.3 17.2 22.4 14.4 17.6 22.4
FD Onset (UT) 17:03 17:17 16:05 14:52 14:52 15:07 15:50 16:19 17:03
FD minimum (UT) 15:00 14:00 14:00 13:00 13:00 14:00 15:00 16:00 16:00

2003 November 20

Shock Arrival : 2003 Nov. 20 07:30
Magnetic Cloud Start : 2003 Nov. 20 10:06 End : 2003 Nov. 21 00:24

Quantity NW N NE W V E SW S SE

FD Magnitude (%) 0.95 0.93 0.81 1.19 1.16 0.97 1.17 1.20 0.93
Cutoff Rigidity (GV) 15.5 18.7 24.0 14.3 17.2 22.4 14.4 17.6 22.4
FD Onset (UT) 21:22 08:10∗∗ 02:53∗∗ 01:55 10:48 20:38 06:58 10:19 15:07
FD minimum (UT) 5:00 4:00 2:00 4:00 4:00 4:00 3:00 3:00 2:00

2004 July 26

Shock Arrival : 2004 Jul. 26 22:20
Magnetic Cloud Start : 2004 Jul. 27 02:00 End : 2004 Jul. 27 24:00

Quantity NW N NE W V E SW S SE

FD Magnitude (%) 2.06 2.04 1.67 2.40 2.12 1.62. 1.77 1.67 1.40
Cutoff Rigidity (GV) 15.5 18.7 24.0 14.3 17.2 22.4 14.4 17.6 22.4
FD Onset (UT) 14:24 15:22 17:17 14:10 15:36 18:00 16:05 18:29 20:38
FD minimum (UT) 10:00 11:00 13:00 10:00 11:00 13:00 12:00 14:00 15:00

Notes.For each event, first row: magnitude of FD (FD magnitude), second row: cutoff rigidity, third row: FD onset time, fourth row: FD minimum time. The units in which each quantity is expressed is given in parentheses in the first column.

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