Possible Type II and IV Radio Bursts Observed by Wind/WAVES in 1998

No.

Start Time

Stop Time

Freq Range (kHz)

Comments

Dyn Spec

  1.  

19980121

1040

19980121

1230

600 - 300

 

 

  1.  

19980125

1503

19980125

1518

14000-10000

Brief but intense

X

  1.  

19980213

1400

19980213

2000

60-50

 

 

  1.  

19980301

0630

19980301

1000

300-200

 

 

  1.  

19980306

0015

19980306

1100

80-70

Well defined

S

  1.  

19980329

0315

19980329

0330

3000-1500

Multiple tones

S

  1.  

19980329

0340

19980329

0352

14000-7000

Weak F-H pair

S

  1.  

19980403

0000

19980403

2100

150-80

Narrow tone

S

  1.  

19980415

1800

19980417

2400

800-80

Very intermittent

 

  1.  

19980420

1025

19980422

0600

10000-35

 

X

  1.  

19980423

0600

19980423

1530

14000-200

Chaotic activity

S

  1.  

19980427

0925

19980427

1000

10000-1000

Very confused signature

S

  1.  

19980427

1140

19980427

1200

7500-6000

Very weak

S

  1.  

19980428

0000

19980428

2400

170-80

Weak continuous harmonic

S

  1.  

19980429

1630

19980429

1700

10000-2000

Possible broadband type II

X

  1.  

19980429

1700

19980429

1815

14000-8000

Possible type IV

X

  1.  

19980501

1200

19980502

2400

200-70

Intermittent at start

S

  1.  

19980502

1410

19980502

1540

14000-8000

Type IV?

X

  1.  

19980502

1425

19980502

1450

5000-3000

Narrowband wisps

X

  1.  

19980502

1650

19980502

1820

3000-1000

Many narrowband wisps

X

  1.  

19980503

2230

19980503

2300

14000-8000

Type IV?

X

  1.  

19980504

0030

19980504

2400

100-35

Fundamental.

S

  1.  

19980506

0200

19980506

0700

120-80

F-H pair

 

  1.  

19980506

0825

19980506

0835

14000-5000

Very fast drift

 

  1.  

19980507

0000

19980507

2400

120-50

Nice f-h pair

S

  1.  

19980507

1800

19980508

1600

200-100

Single band

 

  1.  

19980509

0335

19980509

1000

9000-400

Gap btwn 1000 and 500 kHz

 

  1.  

19980511

2140

19980511

2200

10000-1000

Possible f-h pair

X

  1.  

19980511

0000

19980511

2000

120-50

Several slow drifting features

 

  1.  

19980514

0700

19980514

2200

200-140

F-H pair

 

  1.  

19980516

0300

19980516

2400

120-65

fairly intense

X

  1.  

19980516

0600

19980516

2000

450-300

embedded in type III storm

 

  1.  

19980517

0800

19980519

2200

600-120

Partially embedded in type III storm

 

  1.  

19980517

1930

19980519

1200

120-40

Lift-off May 16 @01 UT (?)

 

  1.  

19980519

1000

19980519

1130

14000-3000

Textbook F-H pair

X

  1.  

19980527

1330

19980527

1420

4000-1000

Weak, intermittent

S

  1.  

19980606

0100

19980606

0830

100-70

Single tone

 

  1.  

19980611

1015

19980611

1020

8000-4000

Brief F-H pair

S

  1.  

19980616

1820

19980617

2100

12000-50

F-H pair 12-3 MHz, 50-100 kHz

X

  1.  

19980622

0715

19980622

0920

6000-2000

Weak, int. F-H pair

S

  1.  

19980708

0130

19980708

0200

11000-6000

Weak, single tone

S

  1.  

19980708

1130

19980708

2100

100-70

Single tone

 

  1.  

19980801

1300

19980803

0300

85-40

Shock at 10 hr Aug 3?

X

  1.  

19980810

1730

19980810

2130

70-60

Single tone

 

  1.  

19980811

0530

19980813

03300

400-40

Impressive

 

  1.  

19980818

2300

19980818

2340

14000-2000

Imbedded type IV?

X

  1.  

19980824

2205

19980826

0620

14000-30

Most intense since launch

X,X

  1.  

19980831

1537

19980831

1625

4000-1500

Strong F, weak H

S

  1.  

19980920

0400

19980920

0445

14000-2000

Complex, intense

S

  1.  

19980920

0850

19980920

0930

2000-1500

Single narrowband tone

S

  1.  

19980923

0720

19980924

2320

2000-30

Complex, intense event w. multiple type IIs

S,S,S

  1.  

19980930

1320

19981002

0700

14000-50

Complex, intermittent event

S,F

  1.  

19981018

2300

19981018

2315

10000-6000

Very bursty, weak

S

  1.  

19981020

2100

19981020

2230

14000-1000

Weak, intermittent

S

  1.  

19981102

1400

19981102

1440

14000-4000

Relatively intense

X

  1.  

19981105

2200

19981107

0800

5000-50

Weak at start

 

  1.  

19981106

0300

19981106

0530

5000-1000

F-H, Filamentary

S

  1.  

19981107

0020

19981107

0050

14000-6000

F-H

S

  1.  

19981111

0100

19981111

1800

150-70

Intermittent narrowband tone

 

  1.  

19981114

0510

19981114

0540

14000-2500

Complex, intense

X

  1.  

19981218

1750

19981218

1815

14000-5000

Complex tones

X

  1.  

19981218

2200

19981219

1200

600-100

Very weak single tone

 

  1.  

19981223

0650

19981224

1500

14000-100

Intermittent F-H pair

X


Author -- Michael L. Kaiser (Michael.Kaiser@nasa.gov)