Viewing archive of tisdag, 7 april 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 Apr 07 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 097 publicerat klockan 2200Z på 07 APR 1998IA. Analys av solfläcksgrupper och solaktivitet från 06-2100Z till 07-2100Z SOLAR ACTIVITY WAS LOW DUE TO A FEW SMALL C-CLASS
FLARES, NONE OF WHICH HAD CORRESPONDING OPTICAL REPORTS. THE LARGEST
OF THESE WAS A C1 AT 07/0110Z. FOUR NEW ACTIVE REGIONS WERE
NUMBERED: REGION 8196 (N18W61) EMERGED AS A SMALL BIPOLAR GROUP;
REGION 8197 (N32E48) LIKEWISE EMERGED AS A SMALL BIPOLE; 8198
(S28E74) ROTATED AROUND THE SOUTHEAST LIMB AS PART OF THE 8194/8195
ACTIVE REGION COMPLEX; AND 8199 (S26W02) IS EMERGING RAPIDLY JUST TO
THE SOUTH OF REGION 8193 (S23E02).
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. THE MOST LIKELY AREAS OF POTENTIAL M-CLASS ACTIVITY ARE
THE 8193/8199 AREA AND THE COMPLEX COMPRISED OF REGIONS 8194, 8195,
AND 8198.
IIA. Sammanfattning av geofysisk aktivitet 06-2100Z till 07-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. A SHOCK OBSERVED BY
ACE SENSORS AT ABOUT 07/1650Z WAS FOLLOWD BY A SUDDEN IMPULSE
RESPONSE DETECTED IN GOES AND GROUND-BASED MAGNETOMETERS AT ABOUT
07/1750Z. THE FIELD HAS BEEN MOSTLY UNSETTLED SINCE THE SHOCK.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE QUIET TO UNSETTLED.
III. Chans för solutbrott från 08 APR till 10 APR
| M-klass | 60% | 60% | 60% |
| X-klass | 10% | 10% | 10% |
| Proton | 01% | 01% | 01% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 07 APR 135 Prognoserat 08 APR-10 APR 138/140/142 90 Day Mean 07 APR 101
V. Geomagnetiskt A-index
OBSERVED AFR/AP 06 APR 004/004 ESTIMATED AFR/AP 07 APR 005/008 PREDICTED AFR/AP 08 APR-10 APR 010/008-010/008-010/008
VI. Chanser för geomagnetisk aktivitet från 08 APR till 10 APR
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 10% | 10% | 10% |
| Svåra stormförhållanden | 05% | 05% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 10% | 10% | 10% |
| Svåra stormförhållanden | 05% | 05% | 05% |
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