Viewing archive of lördag, 4 juli 1998
Solaktivitetsrapport
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Rapport för sol- och geofysisk aktivitet 1998 Jul 04 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 185 publicerat klockan 2200Z på 04 JUL 1998IA. Analys av solfläcksgrupper och solaktivitet från 03-2100Z till 04-2100Z SOLAR ACTIVITY WAS LOW TO MODERATE. ALMOST ALL OF THE
ACTIVITY WAS PRODUCED BY REGION 8256 (S23W47). THIS REGION HAS
INCREASED IN PLAGE AREA AND SPOT COUNT OVER THE LAST 24 HOURS,
CURRENTLY AN 18 SPOT DRO-BETA. IT HAS PRODUCED SEVERAL C-CLASS
EVENTS AND SUBFLARES AS WELL AS AN M-CLASS EVENT WITH A
CORRESPONDING SN FLARE AT 04/1216UT AND A NEAR M-CLASS EVENT (C9.7)
WITH A 1N FLARE AT 04/1643UT. THE ONLY OTHER REGION SHOWING ANY
ACTIVITY WAS 8260 (S23W14) WHICH PRODUCED AN OPTICAL SUBFLARE AT
04/0739UT. IT HAS SHOWN ONLY MINOR PLAGE FLUCTUATIONS SINCE THAT
TIME. THE REMAINING REGIONS HAVE BEEN QUIET.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO CONTINUE
TO BE LOW TO MODERATE. REGION 8256 IS EXPECTED TO CONTINUE TO
PRODUCE C-CLASS ACTIVITY AND ISOLATED M-CLASS FLARES. REGION 8260
COULD ALSO PRODUCE ISOLATED C-CLASS ACTIVITY.
IIA. Sammanfattning av geofysisk aktivitet 03-2100Z till 04-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED WITH ONE PERIOD OF
ACTIVE CONDITIONS OCCURRING BETWEEN 03/00-03UT. THE GREATER THAN
2MEV ELECTRON FLUX AT GEOSYNCHRONOUS ALTITUDE INCREASED TO NEAR
THRESHOLD LEVELS AT 04/1900UT AND REMAINED THERE FOR THE REST OF THE
REPORTING PERIOD.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FILED IS
EXPECTED TO BE QUIET TO UNSETTLED WITH ISOLATED ACTIVE PERIODS.
III. Chans för solutbrott från 05 JUL till 07 JUL
| M-klass | 40% | 40% | 40% |
| X-klass | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 04 JUL 129 Prognoserat 05 JUL-07 JUL 130/130/126 90 Day Mean 04 JUL 108
V. Geomagnetiskt A-index
OBSERVED AFR/AP 03 JUL 011/011 ESTIMATED AFR/AP 04 JUL 012/015 PREDICTED AFR/AP 05 JUL-07 JUL 015/015-012/012-010/010
VI. Chanser för geomagnetisk aktivitet från 05 JUL till 07 JUL
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 30% |
| Små stormförhållanden | 20% | 20% | 20% |
| Svåra stormförhållanden | 05% | 05% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 50% | 40% | 40% |
| Små stormförhållanden | 25% | 25% | 25% |
| Svåra stormförhållanden | 10% | 05% | 05% |
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