Viewing archive of torsdag, 25 november 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 Nov 25 2200 UTC
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 329 publicerat klockan 2200Z på 25 NOV 1999

IA. Analys av solfläcksgrupper och solaktivitet från 24-2100Z till 25-2100Z

SOLAR ACTIVITY WAS MODERATE WITH THREE M-CLASS X-RAY EVENTS OBSERVED THIS PERIOD. REGION 8778 (S14E10) PRODUCED A VERY IMPULSIVE M2/1B FLARE AT 24/2156Z. THIS REGION, THOUGH RELATIVELY SMALL WITH NO OBVIOUS GROWTH, CONTAINS SOME MIXED POLARITY AND CONTINUED TO PRODUCE C-CLASS ACTIVITY FOLLOWING THE M2 FLARE. REGION 8771 (S15W51) PRODUCED AN M3 FLARE AT 24/2337Z WITH A TYPE II SWEEP AND MINOR DISCRETE RADIO BURSTS. ACTIVITY INCREASED IN THIS REGION AGAIN LATE IN THE PERIOD WHEN A SERIES OF C-CLASS EVENTS CULMINATED WITH A M2/2N FLARE AT 25/1919Z. THIS REGION HAS INCREASED IN SIZE CONSIDERABLY DURING THE LAST TWO TO THREE DAYS AND NOW MEASURES NEAR 820 MILLIONTHS IN WHITE LIGHT AREA WITH A POSSIBLE DELTA CONFIGURATION. NO SIGNIFICANT CHANGES OR ACTIVITY NOTED IN THE REMAINING REGIONS.
IB. Prognos för solaktivitet
SOLAR ACTIVITY IS EXPECTED TO CONTINUE AT MODERATE LEVELS. M-CLASS ACTIVITY IS LIKELY FROM REGION 8771 WITH A SMALL CHANCE FOR AN ISOLATED M-CLASS EVENT FROM REGION 8778.
IIA. Sammanfattning av geofysisk aktivitet 24-2100Z till 25-2100Z
THE GEOMAGNETIC FIELD WAS AT QUIET TO ACTIVE LEVELS WITH AN ISOLATED MAJOR STORMING PERIOD BETWEEN 25/09-12Z. ACE RTSW DATA INDICATED A SHARP TURN SOUTHWARD IN BZ AT AROUND 25/0900Z, BUT THIS LASTED LESS THAN TWO HOURS BEFORE RETURNING TO NORTHWARD.
IIB. Prognos för geofysisk aktivitet
THE GEOMAGNETIC FIELD IS EXPECTED TO CONTINUE AT QUIET TO ACTIVE LEVELS WITH THE MOST DISTURBED CONDITIONS OCCURRING DURING LOCAL NIGHTTIME HOURS.
III. Chans för solutbrott från 26 NOV till 28 NOV
M-klass60%55%50%
X-klass10%10%10%
Proton10%10%10%
PCAFGREEN
IV. Penticton 10.7 cm Flux
  Observerad       25 NOV 184
  Prognoserat   26 NOV-28 NOV  180/175/165
  90 Day Mean        25 NOV 166
V. Geomagnetiskt A-index
OBSERVED AFR/AP 24 NOV  014/019
ESTIMATED AFR/AP 25 NOV  018/020
PREDICTED AFR/AP 26 NOV-28 NOV  012/012-007/010-007/010
VI. Chanser för geomagnetisk aktivitet från 26 NOV till 28 NOV
A. Medelhöga breddgrader
Aktivt35%30%30%
Små stormförhållanden15%10%10%
Svåra stormförhållanden05%01%01%
B. Höga breddgrader
Aktivt40%35%35%
Små stormförhållanden20%15%15%
Svåra stormförhållanden10%05%05%

Gå till översikt idag

Senaste nytt

Stöd 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!

54%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Rymdvädersfakta

Senaste X-utbrottet2024/05/08X1.0
Senaste M-utbrottet2024/05/08M3.3
Senaste geomagnetiska stormen2024/05/06Kp5 (G1)
Fläckfria dagar
Senaste dag utan solfläckar2022/06/08
Månadsvis faktiskt antal solfläckar
april 2024136.5 +31.6
Last 30 days161.2 +69.2

I dag i historien*

Solutbrott
12024X1.0
22014M7.6
31999M6.7
41998M4.31
52024M3.3
ApG
11960128G4
2200591G4
3201670G2
4194634G2
5199340G2
*sedan 1994

Sociala medier