Viewing archive of fredag, 27 augusti 1999
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 1999 Aug 27 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 239 publicerat klockan 2200Z på 27 AUG 1999IA. Analys av solfläcksgrupper och solaktivitet från 26-2100Z till 27-2100Z SOLAR ACTIVITY WAS HIGH. REGION 8674 (S24W16) PRODUCED
AN M5/2N FLARE AT 1307Z. THIS REGION ALSO HAD AN M3/2N AT 1635Z, AND
WAS THE LIKELY SITE OF THE M3 EVENT EARLIER AT 0137Z. THE CENTER OF
THE DISK IS DOMINATED BY THE MERGING OF REGIONS 8674 AND 8673
(S19W24), AND THE TWO ARE NOW NEARLY INDISTINGUISHABLE. ALTHOUGH THE
X-RAY OUTPUT OF TODAY'S EVENTS WAS SUBSTANTIAL, THE RADIO EMISSION
WAS SMALL, AND NO SWEEP FREQUENCY EVENTS WERE DETECTED. ONE NEW
REGION WAS NUMBERED, REGION 8680 (N22W87).
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO BE
MODERATE TO HIGH. REGIONS 8673 AND 8674 ARE LARGE, MAGNETICALLY
COMPLEX, AND DYNAMIC. WATCH FOR ADDITIONAL M-CLASS, AND ISOLATED
X-CLASS, ACTIVITY DURING THE NEXT THREE DAYS.
IIA. Sammanfattning av geofysisk aktivitet 26-2100Z till 27-2100Z
THE GEOMAGNETIC FIELD WAS QUIET TO MILDLY ACTIVE. SOLAR WIND SPEEDS
IN EXCESS OF 600 KM/S ARE STILL OCCURRING, LIKELY ORIGINATING FROM A
WELL- POSITIONED CORONAL HOLE WEST OF CENTRAL MERIDIAN. THE GREATER
THAN 2 MEV ELECTRON FLUX AT GEOSYNCHRONOUS ORBIT APPROACHED HIGH
LEVELS AT APPROXIMATELY 1500Z.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS
EXPECTED TO BE UNSETTLED THE NEXT THREE DAYS. THERE IS A GOOD CHANCE
FOR ISOLATED ACTIVE CONDITIONS DURING LOCAL NIGHTTIME HOURS. A
GREATER THAN 10 MEV PROTON EVENT IS ALSO POSSIBLE DURING THE PERIOD,
PENDING FURTHER ACTIVITY FROM REGIONS 8673 AND 8674.
III. Chans för solutbrott från 28 AUG till 30 AUG
| M-klass | 80% | 80% | 80% |
| X-klass | 40% | 40% | 40% |
| Proton | 40% | 40% | 40% |
| PCAF | GREEN | ||
IV. Penticton 10.7 cm Flux
Observerad 27 AUG 223 Prognoserat 28 AUG-30 AUG 225/220/220 90 Day Mean 27 AUG 167
V. Geomagnetiskt A-index
OBSERVED AFR/AP 26 AUG 010/013 ESTIMATED AFR/AP 27 AUG 010/012 PREDICTED AFR/AP 28 AUG-30 AUG 010/010-010/010-010/010
VI. Chanser för geomagnetisk aktivitet från 28 AUG till 30 AUG
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 20% |
| Små stormförhållanden | 10% | 10% | 05% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 40% | 40% | 30% |
| Små stormförhållanden | 15% | 15% | 10% |
| 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
Unproven theories 351AR3654 31Growth of Cycle 25 435Unspecified geomagnetic activity 954Changelog/Featurelog 154
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 | 2024/04/29 | M3.6 |
| 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 | 139 +32.6 |