National Aeronautics and Space Administration

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
2	19980125	1503	19980125	1518	14000-10000	Brief but intense	X
1	19980213	1400	19980213	2000	60-50
2	19980301	0630	19980301	1000	300-200
3	19980306	0015	19980306	1100	80-70	Well defined	S
4	19980329	0315	19980329	0330	3000-1500	Multiple tones	S
5	19980329	0340	19980329	0352	14000-7000	Weak F-H pair	S
6	19980403	0000	19980403	2100	150-80	Narrow tone	S
7	19980415	1800	19980417	2400	800-80	Very intermittent
8	19980420	1025	19980422	0600	10000-35		X
9	19980423	0600	19980423	1530	14000-200	Chaotic activity	S
10	19980427	0925	19980427	1000	10000-1000	Very confused signature	S
11	19980427	1140	19980427	1200	7500-6000	Very weak	S
12	19980428	0000	19980428	2400	170-80	Weak continuous harmonic	S
13	19980429	1630	19980429	1700	10000-2000	Possible broadband type II	X
14	19980429	1700	19980429	1815	14000-8000	Possible type IV	X
15	19980501	1200	19980502	2400	200-70	Intermittent at start	S
16	19980502	1410	19980502	1540	14000-8000	Type IV?	X
17	19980502	1425	19980502	1450	5000-3000	Narrowband wisps	X
18	19980502	1650	19980502	1820	3000-1000	Many narrowband wisps	X
19	19980503	2230	19980503	2300	14000-8000	Type IV?	X
20	19980504	0030	19980504	2400	100-35	Fundamental.	S
21	19980506	0200	19980506	0700	120-80	F-H pair
22	19980506	0825	19980506	0835	14000-5000	Very fast drift
23	19980507	0000	19980507	2400	120-50	Nice f-h pair	S
24	19980507	1800	19980508	1600	200-100	Single band
25	19980509	0335	19980509	1000	9000-400	Gap btwn 1000 and 500 kHz
26	19980511	2140	19980511	2200	10000-1000	Possible f-h pair	X
27	19980511	0000	19980511	2000	120-50	Several slow drifting features
28	19980514	0700	19980514	2200	200-140	F-H pair
29	19980516	0300	19980516	2400	120-65	fairly intense	X
30	19980516	0600	19980516	2000	450-300	embedded in type III storm
31	19980517	0800	19980519	2200	600-120	Partially embedded in type III storm
32	19980517	1930	19980519	1200	120-40	Lift-off May 16 at 01 UT (?)
33	19980519	1000	19980519	1130	14000-3000	Textbook F-H pair	X
34	19980527	1330	19980527	1420	4000-1000	Weak intermittent	S
35	19980606	0100	19980606	0830	100-70	Single tone
36	19980611	1015	19980611	1020	8000-4000	Brief F-H pair	S
37	19980616	1820	19980617	2100	12000-50	F-H pair 12-3 MHz, 50-100 kHz	X
38	19980622	0715	19980622	0920	6000-2000	Weak, int. F-H pair	S
39	19980708	0130	19980708	0200	11000-6000	Weak, single tone	S
40	19980708	1130	19980708	2100	100-70	Single tone
41	19980801	1300	19980803	0300	85-40	Shock at 10 hr Aug 3?	X
42	19980810	1730	19980810	2130	70-60	Single tone
43	19980811	0530	19980813	0330	400-40	Impressive
44	19980818	2300	19980818	2340	14000-2000	Imbedded type IV?	X
45	19980824	2205	19980826	0620	14000-30	Most intense since launch	X, X
46	19980831	1537	19980831	1625	4000-1500	Strong F, weak H	S
47	19980920	0400	19980920	0445	14000-2000	Complex, intense	S
48	19980920	0850	19980920	0930	2000-1500	Single narrowband tone	S
49	19980923	0720	19980924	2320	2000-30	Complex, intense event w. multiple type IIs	S, S, S
50	19980930	1320	19981002	0700	14000-50	Complex, intermittent event	S, F
51	19981018	2300	19981018	2315	10000-6000	Very bursty, weak	S
52	19981020	2100	19981020	2230	14000-1000	Weak, intermittent	S
53	19981102	1400	19981102	1440	14000-4000	Relatively intense	X
54	19981105	2200	19981107	0800	5000-50	Weak at start
55	19981106	0300	19981106	0530	5000-1000	F-H, Filamentary	S
56	19981107	0020	19981107	0050	14000-6000	F-H	S
57	19981111	0100	19981111	1800	150-70	Intermittent narrowband tone
58	19981114	0510	19981114	0540	14000-2500	Complex, intense	X
59	19981218	1750	19981218	1815	14000-5000	Complex tones	X
60	19981218	2200	19981219	1200	600-100	Very weak single tone
61	19981223	0650	19981224	1500	14000-100	Intermittent F-H pair	X

Author -- Michael L. Kaiser