Shock Date
(at SoHO)

Shock Travel Time
(hours)

Average
Vsh
(km/s)

Upstream Vsw
(km/s)

Speed
jump
(km/s)

Flare?

CME?

Energetic Particles at Shock Passage?

Geomagnetic Activity?
(Max Kp)

Forbush Decrease?
 (%)

Type II Radio Bursts?

Location

10 Jan 97

80

520

380

30

No

Yes

No

Yes (6)

Yes (1)

Yes

 

9 Feb 97

58

720

520

80

No

Yes

Yes

Yes (5)

Yes (0.5)

--

 

10 Apr 97

71

590

310

30

Yes

Yes

Yes

Yes (7-)

Yes (3)

Yes

 

15 May 97

68

610

320

70

Yes

Yes

Yes

Yes (7)

Yes (1)

Yes

 

20 May 97

?

--

310

45

No

No

No

No (2)

No

--

 

25 May 97

87

480

300

25

Yes

No

No

No (2)

No?

Yes

 

1 Oct 97

?

--

420

25

?

?

Yes

Yes (6)

Yes (3)

--

 

23 Oct 97

?

--

310

50

?

?

No

No (2)

Yes (1)

--

 

24 Oct 97

65

640

375

75

Yes

Yes

Yes

Yes (6)

Yes (2.5)

--

 

6 Nov 97

63

660

340

110

Yes

?

Yes

Yes (7)

Yes (3)

Yes

 

22 Nov 97

73

570

350

100

No

Yes

Yes

Yes (6)

Yes (3)

Yes

 

10 Dec 97

90

460

280

70

Yes

Yes

Yes

Yes (4)

Yes (1)

--

 

30 Dec 97

95

440

320

40

No

Yes

?

Yes (5-)

No

--

 

6 Jan 98

86

480

310

70

No

Yes

Yes

Yes (4+)

Yes (0.5)

--

 

24 Jan 98

66

630

365

40

No

Yes

Yes

No(2)

Yes (1)

Yes

 

28 Jan 98

73

570

370

25

Yes

Yes

Yes

No(2)

Yes (1)

Yes

 

31 Jan 98

?

--

340

30

?

?

Yes

Yes (4)

Yes (0.5)

?

 

11 Feb 98

?

--

480

60

No

No

No

Yes(4)

No

--

 

7 Apr 98

?

--

295

50

?

?

No

No

Yes (2.5)

Yes

 

23 Apr 98

80

520

335

45

Yes

Yes

Yes

Yes (6)

Yes (0.5)

Yes

W90,S43

30 Apr 98

71

580

320

40

Yes

Yes

 

 

No

 

E50S16

01 May 98

53

778

470

130

Yes

Yes

 

 

Yes (4.0)

 

E20S18

03 May 98

 

 

440

60

Yes

 

 

 

Yes (0.5)

 

 

04 May 98

 

 

480

50

Yes

 

 

 

Yes

 

 

04 May 98

37

1120

490

135

Yes

 

 

Yes (9)

Yes

 

W15S15

 

 

 

 

 

Yes

 

 

 

 

 

W65S11