Viewing archive of tisdag, 21 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 21 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 111 publicerat klockan 2200Z på 21 APR 1998IA. Analys av solfläcksgrupper och solaktivitet från 20-2100Z till 21-2100Z SOLAR ACTIVITY WAS VERY LOW. THE ONLY ACTIVITY OF NOTE
WAS AN ERUPTIVE PROMINENCE THAT OCCURRED ON THE WEST LIMB NEAR N30.
NO OTHER ACTIVITY WAS NOTED WITH THIS ERUPTION. REGION 8205
(N21W53) DECAYED SLIGHTLY IN WHITE LIGHT AREA BUT IS STILL
EXHIBITING OCCASIONAL PLAGE FLUCTUATIONS AND SURGING. THE REMAINING
REGIONS HAVE BEEN QUIET.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE VERY
LOW TO LOW. REGION 8205 HAS POTENTIAL TO PRODUCE AN ISOLATED C-CLASS
FLARE. STILL A SLIGHT CHANCE FOR FURTHER ACTIVITY NEAR THE SW LIMB -
THE SOURCE OF YESTERDAY'S M1 X-RAY FLARE; HOWEVER, THE LIKELY SOURCE
REGION HAS PROBABLY ROTATED ENOUGH TO ELIMINATE CONCERN.
IIA. Sammanfattning av geofysisk aktivitet 20-2100Z till 21-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO UNSETTLED. THE GREATER THAN 10 MEV
PROTON EVENT THAT BEGAN AT 20/1130Z IS STILL IN PROGRESS. A MAXIMUM
VALUE OF 1700 PFU WAS REACHED AT 21/1205. THE EVENT APPEARS TO BE
IN DECLINE NOW WITH A CURRENT VALUE OF 640 PFU. THE GREATER THAN 100
MEV EVENT PEAKED AT 7.4 PFU AT 21/1255Z AND IS CURRENTLY AT 2.5 PFU.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO CONTINUE AT QUIET TO UNSETTLED LEVELS. AN EXTENSION OF
THE SOUTHERN CORONAL HOLE WILL MOVE INTO FAVORABLE POSITION FOR
GEOEFFECTIVNESS ON DAY TWO AND THREE. EXPECT OCCASIONAL ACTIVE
PERIODS DURING THIS PERIOD. THE PROTON EVENT IN PROGRESS IS EXPECTED
TO LAST THROUGH TOMORROW.
III. Chans för solutbrott från 22 APR till 24 APR
| M-klass | 05% | 05% | 05% |
| X-klass | 01% | 01% | 01% |
| Proton | 05% | 05% | 01% |
| PCAF | IN PROGRESS | ||
IV. Penticton 10.7 cm Flux
Observerad 21 APR 92 Prognoserat 22 APR-24 APR 092/090/090 90 Day Mean 21 APR 104
V. Geomagnetiskt A-index
OBSERVED AFR/AP 20 APR 009/010 ESTIMATED AFR/AP 21 APR 007/010 PREDICTED AFR/AP 22 APR-24 APR 012/010-012/015-012/020
VI. Chanser för geomagnetisk aktivitet från 22 APR till 24 APR
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 30% | 30% |
| Små stormförhållanden | 05% | 05% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 40% | 45% |
| Små stormförhållanden | 10% | 10% | 10% |
| Svåra stormförhållanden | 01% | 06% | 06% |
Senaste nytt
måndag, 22 april 2024
Lot's of sunspots! Big chance for major flare activity?
lördag, 23 mars 2024
X1.1 solar flare with earth-directed CME
onsdag, 20 mars 2024
Sunspot region 3615, G1 watch
Senaste inläggen
AR 3637, 3638, 3643 89Unproven theories 341Space Weather Memes 338Filaments and prominences 55Growth of Cycle 25 433
Fler foruminläggStöd SpaceWeatherLive.com!
För att vara tillgängliga vid stora norrskensutbrott måsta vi ha kraftiga servrar som kan hantera alla besökare. Donera och stöd vårt projekt, så att vi kan finnas online även under stora stormar!
Rymdvädersfakta
| Senaste X-utbrottet | 2024/03/28 | X1.1 |
| Senaste M-utbrottet | 2024/04/25 | M1.0 |
| Senaste geomagnetiska stormen | 2024/04/19 | Kp7 (G3) |
| Fläckfria dagar | |
|---|---|
| Senaste dag utan solfläckar | 2022/06/08 |
| Månadsvis faktiskt antal solfläckar | |
|---|---|
| mars 2024 | 104.9 -19.8 |
| Last 30 days | 133.9 +26.6 |