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Table 5 Large SEP events of cycle 24 associated with weaker flares or backside eruptions (15 events)

From: Major solar eruptions and high-energy particle events during solar cycle 24

No.

Flare date and time

Flare size

Flare location

FR location

B0 degree

Final location

Vskykm/s

Vpkkm/s

Max E MeV

SEPbGOES

SEPcSTA (B)

1

2010/08/14 09:38

C4.4

N12W56

S13W54

+6.6

S20W54

1,205

1,658

40 to 80

14

<0.1

2

2011/03/07 19:43

M3.7

N24W59

N32W58

−7.3

N39W58

2,125

2,660

40 to 80

50

200

3

2011/03/21 02:00

Back

N24W129

N26W125

−7.0

N33W125

1,341

2,022

80 to 165

14

1,500

4

2011/06/07 06:16

M2.5

S21W54

S08W51

+0.1

S08W51

1,255

1,680

350 to 420

72

HiB

5

2011/11/26 06:09

C1.2

N08W49

N10W47

+1.5

N08W47

933

1,187

40 to 80

80

10

6

2012/05/26 20:40

Back

N10W126

N11W115

−1.4

N12W115

1,966

2,623

15 to 40

14

1,500

7

2012/06/14 12:35

M1.9

S17W06

S26E02

+0.9

S27E02

987

1,626

15 to 40

14

-

8

2012/07/17 12:50

M1.7

S28W65

S27W79

+4.5

S32W79

958

1,881

40 to 80

136

10

9

2012/07/23 01:50

Back

S17W141

N05W135

+5.1

N00W135

2,003

2,621

165 to 500

12

5,000

10

2012/08/31 19:24

C8.4

S19E42

S06E40

+7.2

S13E40

1,442

1,601

15 to 40

59

(3,500)

11

2012/09/27 23:24

C3.7

N06W34

N16W29

+6.9

N09W29

1,319

1,479

80 to 165

28

HiB

12

2013/03/15 05:42

M1.1

N11E12

N10E08

−7.2

N17E08

1,063

1,602

40 to 80

16

(0.6)

13

2013/09/29 21:43

C1.2

N23W25

N23W29

+6.8

N16W29

1,025

1,864

80 to 165

200

0.3

14

2013/12/28 17:16

Back

S08W130

S01W127

−2.5

N02W127

1,133

1,918

80 to 165

30

1

15

2014/01/06 08:00

C2.1a

S15W108

S06W102

−3.6

S02W102

1,293

2,287

>700

40

3

  1. aThe true flare size is unknown because part of the flare was occulted by the limb. bPeak >10 MeV flux detected by GOES; cPeak >10 MeV flux derived from STEREO/HET data. The numbers in parentheses are from STB; others are from STA; HiB = high CCSEP background.