Viewing archive of fredag, 28 augusti 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 Aug 28 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 240 publicerat klockan 2200Z på 28 AUG 1998IA. Analys av solfläcksgrupper och solaktivitet från 27-2100Z till 28-2100Z SOLAR ACTIVITY HAS BEEN LOW. REGION 8307 (N32W39)
CONTINUES TO SIMPLIFY. IT APPEARS TO STILL BE CAPABLE OF PRODUCING
AN ISOLATED CLASS M EVENT. REGION 8319 (N19W15) CONTINUES TO GROW
AND SHOW SIGNS OF FURTHER DEVELOPMENT WITH AN ACTIVE ARCH-FILAMENT
SYSTEM EXTENDING THE LENGTH OF THE REGION. YOHKOH REPORTS THAT A
POTENTIAL-LIKE LOOP STRUCTURE IS WELL DEVELOPED. SMALL GROUPS OF
NEW SPOTS CONTINUE TO APPEAR ACROSS THE FACE OF THE VISIBLE DISK.
OLD REGION 8293 APPEARS TO BE RETURNING AT S21 ON THE EAST LIMB.
FILAMENTS HAVE DISAPPEARED IN THE SOUTH CENTRAL AREA OF THE DISK.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE LOW
TO MODERATE. FREQUENT FLARES CLASS C TO CLASS M ARE EXPECTED IN
REGION 8319 AND AN ISOLATED CLASS M FLARE MAY OCCUR IN REGION 8307.
IIA. Sammanfattning av geofysisk aktivitet 27-2100Z till 28-2100Z
GEOPHYSICAL ACTIVITY HAS BEEN UNSETTLED TO ACTIVE. THE GEOMAGNETIC
STORM HAS DECLINED RAPIDLY AND K-INDICES OF 3 AND 4 ARE PREVALENT AT
MID-LATITUDE. THE REAL TIME SOLAR WIND DATA FROM ACE SHOWS A
REGULAR WAVE-LIKE STRUCTURE IN THE BZ COMPONENT WITH A PERIOD OF
ABOUT 30 MINUTES. THE STRUCTURE HAS BEEN QUIRE REGULAR FOR THE LAST
20 HOURS. THE ENERGETIC PARTICLES WITH ENERGY GREATER THAN 10 MEV
HAVE DECLINED AND ARE HOVERING AT ABOUT 10 PFU. AN END TO THE EVENT
IS LIKELY TO BE PRONOUNCED IN THE NEXT FEW HOURS. THE NEUTRON
MONITOR FLUXES HAVE RETURNED TO NEAR-NORMAL LEVELS. GREATER THAN 2
MEV ELECTRONS AT GOES ARE NOW EXCEEDING A FLUX OF 1.0 E4, A LEVEL 10
TIMES THE ALERT THRESHOLDS.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED TO ACTIVE FOR THE NEXT DAY OR SO. THE
DISAPPEARANCE OF FILAMENTS IN THE SOUTHERN CENTRAL PORTION OF THE
SUN MAY BE ASSOCIATED WITH CORONAL MASS EJECTIONS THAT COULD BRING
ENHANCED ACTIVITY TO EARTH ON AUGUST 30 AND 31.
III. Chans för solutbrott från 29 AUG till 31 AUG
| M-klass | 20% | 20% | 20% |
| X-klass | 05% | 05% | 05% |
| Proton | 25% | 25% | 25% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 28 AUG 139 Prognoserat 29 AUG-31 AUG 135/135/135 90 Day Mean 28 AUG 118
V. Geomagnetiskt A-index
OBSERVED AFR/AP 27 AUG 077/112 ESTIMATED AFR/AP 28 AUG 022/030 PREDICTED AFR/AP 29 AUG-31 AUG 010/015-015/015-015/015
VI. Chanser för geomagnetisk aktivitet från 29 AUG till 31 AUG
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 20% | 20% |
| Små stormförhållanden | 01% | 10% | 10% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 50% | 25% |
| Små stormförhållanden | 10% | 15% | 15% |
| Svåra stormförhållanden | 01% | 01% | 01% |
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
AR3654 24Unspecified geomagnetic activity 954Unproven theories 342Changelog/Featurelog 154What are these long and thin eruptions? 9
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 | 2024/04/27 | M3.0 |
| Senaste geomagnetiska stormen | 2024/04/26 | Kp5+ (G1) |
| Fläckfria dagar | |
|---|---|
| Senaste dag utan solfläckar | 2022/06/08 |
| Månadsvis faktiskt antal solfläckar | |
|---|---|
| mars 2024 | 104.9 -19.8 |
| Last 30 days | 137.7 +30.3 |