Viewing archive of söndag, 28 mars 2004

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 2004 Mar 28 2200 UTC
Skapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com

USAF/NOAA rapport för sol- och geofysisk aktivitet

SDF Nummer 088 publicerat klockan 2200Z på 28 Mar 2004

IA. Analys av solfläcksgrupper och solaktivitet från 27-2100Z till 28-2100Z

Solar activity was low. Today's activity consisted of a few, low-level C-class flares. Most of these were from Region 582 (N15E30) which is the largest region on the disk and appears to be growing slowly. New Region 587 (S13E73) rotated into view today as a bright, moderately sized (110 millionths) bipolar region.
IB. Prognos för solaktivitet
Solar activity is expected to be low, but there is a chance for an isolated M-class event sometime during the next three days (28-30 March) with Region 582 the most likely source for energetic activity.
IIA. Sammanfattning av geofysisk aktivitet 27-2100Z till 28-2100Z
The geomagnetic field was mostly unsettled to active, with a minor storm period from 0300-0600 UTC. Solar wind data show the continued presence of a high speed stream. There was an overall decreasing trend in solar wind velocity: initial speeds around 900 km/s declined to around 650 km/s by forecast issue time. Fluctuations in the interplanetary magnetic field were weak (-6 to + 6 nT), and disappeared altogether between 1300-2000 UTC. The greater than 2 MeV electron fluxes reached high levels during the past 24 hours.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is expected to be unsettled to active for the next two days (28-29 March). A decrease to predominantly unsettled is expected by the third day (30 March).
III. Chans för solutbrott från 29 Mar till 31 Mar
M-klass35%35%35%
X-klass05%05%05%
Proton05%05%05%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observerad       28 Mar 129
  Prognoserat   29 Mar-31 Mar  125/120/120
  90 Day Mean        28 Mar 111
V. Geomagnetiskt A-index
  Observerad Afr/Ap 27 Mar  012/014
  Förväntat     Afr/Ap 28 Mar  018/020
  Prognoserat    Afr/Ap 29 Mar-31 Mar  015/020-015/015-010/010
VI. Chanser för geomagnetisk aktivitet från 29 Mar till 31 Mar
A. Medelhöga breddgrader
Aktivt30%30%25%
Små stormförhållanden25%25%20%
Svåra stormförhållanden10%10%05%
B. Höga breddgrader
Aktivt30%30%25%
Små stormförhållanden25%25%20%
Svåra stormförhållanden20%20%10%

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