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| Date | Day No. | Prov Min Dst | Solar Wind & IMF | Type of Solar Wind Transients Abbreviations Guide | Interesting Aspects | Space weather effects | Solar Source Disturbance | Forecasts & Warnings | References |
|---|---|---|---|---|---|---|---|---|---|
| 06-11 Jan 1998 | 06-11 | -83 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | 7-8 Jan: IMC 5-8Jan: Counterstreaming electron event | ISTP event study | ||||
| 30-31 Jan 1998 | 30-31 | -72 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | BzS | ISTP event study | ||||
| 17-21 Feb 1998 | 048- 052 | -103 plot | UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | BzS, PC, EyC, IS 17-19 Feb: Counterstreaming electron event |
Equator-S Observations | ||||
| 10-20 Mar 1998 | 069- 079 | -126 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | Recurrent stream structure producing a clear interaction region. (No future appearances of stream -- coronal hole dissapears) | |||||
| 20-24 Mar 1998 | 079- 083 | -109 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | recurrent high speed solar wind stream (next appearance of streasm ~ day 107) | |||||
| 24-28 Mar 1998 | 083- 087 | -72 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | Mar 23-27 are ISR radar world days | |||||
| 17-19 Apr 1998 | 107- 109 | -46 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | recurrent high speed stream structure (next appearance of stream ~day 138) | |||||
| 24-30 Apr 1998 | 114- 120 | -87 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | IS | ISTP event study, Apr 27-29 are ISR radar World Days | ||||
| 02-16 May 1998 | 122- 136 | -216 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | IMC, 2-4 May: large He+ event (indicates cold solar material). Following IMC on 4May is a recurrent high speed stream with velocity spikes. (next appearance of high speed stream ~day 150) | ISTP event study Very asymmetric ring current -- Polar saw no increase in ring current flux in a noon- midnight cut near minimum Dst (Joe Fennel, private comm.) | ||||
| 18-20 May 1998 | 138- 140 | -50 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | recurrent high speed stream, shocks, velocity spikes (next appearance of stream ~day 158) | SAMPEX plot of high energy electrons | Galaxy-4 failure 19 May 22UT. Terminated operation for 80% of North American pagers using satellite relay. | |||
| 06-11 Jun 1998 | 157- 162 | -59 plot | UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | recurrent high speed stream (next appearance of stream ~day 187) | |||||
| 14-16 Jun 1998 | 165- 167 | -68 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | ||||||
| 25-27 Jun 1998 | 176- 178 | -111 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | IMC (classic looking signature) | |||||
| 16-18 Jul 1998 | 197- 199 | -66 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | ||||||
| 23-26 Jul 1998 | 204- 207 | -61 plot | Wind-kplot UCLA-IMP8 UCLA-Wind1 UCLA-Wind2 Omniweb | Recurrent stream interaction region. (last geoeffective appearance of stream ~day 122) | |||||
| 06-11 Aug 1998 | 218- 223 | -165 plot | Wind-kplot UCLA-Wind1 UCLA-Wind2 | potential IMC | |||||
| 20-21 Aug 1998 | 232- 233 | -86 plot | Wind-kplot UCLA-Wind1 UCLA-Wind2 Omniweb | PC (A possible fast forward IS) | |||||
| 22-25 Aug 1998 | 234- 237 | -64 plot | Wind-kplot | ||||||
| 26 Aug - 04 Sep 1998 | 238- 247 | -188 plot1 plot2 | Wind-kplot | possible IMC. Complex transient involving a high speed stream, hot solar material | ISTP event study | ||||
| 18-22 Sep 1998 | 261- 265 | -76 plot | Wind-kplot | ||||||
| 24 Sept- 01 Oct 1998 | 267- 273 | -233 plot | Wind-kplot | IMC | Sep 21-25 are ISR Radar World Days | ||||
| 01-06 Oct 1998 | 274- 279 | -76 plot | Wind-kplot | IS | |||||
| 07-14 Oct 1998 | 280- 287 | -84 plot | Wind-kplot | ||||||
| 19-27 Oct 1998 | 292- 300 | -132 plot | Wind-kplot | BzS, IMC, multiple ejecta | Oct 19-21 are ISR Radar World Days | ||||
| 5-7 Nov 1998 | 309-311 | -103 plot | |||||||
| 7-9 Nov1998 | 311-313 | -174 plot | IS at 08UT on day 311 (related to IMC?). Another IS on day 312 at 04UT possibly related to IMC. | Sources may be CME's on 5 or 6 Nov (days 309-10) and 7 Nov (day 311). | |||||
| 9-13 Nov 1998 | 313-317 | -150 plot | |||||||
| 13-19 Nov 1998 | 317-323 | -141 plot | IMC? on 98317 at 0415UT | Nov 16-19 are ISR Radar World Days | |||||
| 10-14 Dec 1998 | 344-348 | -92 plot |
