Viewing archive of söndag, 21 juli 2002
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 2002 Jul 21 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 202 publicerat klockan 2200Z på 21 Jul 2002IA. Analys av solfläcksgrupper och solaktivitet från 20-2100Z till 21-2100Z Solar activity was high. The event in progress at issue
time yesterday, from behind the east limb near S10, reached the X3
level at 20/2130UTC. There was an associated type II sweep and
tenflare. The site of the activity has, as yet, failed to fully
appear, but should do so in the next 24 hours. Some plage and
faculae are now visible in that vicinity. Elsewhere, Regions 30
(N18W76) and 36 (S06W02) continue to impress in white light and
H-alpha, but have been relatively quiet. One new region, 38
(N17E51), was assigned.
IB. Prognos för solaktivitet
Solar activity is expected to be
moderate. Watch the east limb for more energetic activity over the
next three days.
IIA. Sammanfattning av geofysisk aktivitet 20-2100Z till 21-2100Z
The geomagnetic field was at quiet to minor storm levels during the
period. Faster than normal solar wind, with some southward Bz,
brought periods of minor storm conditions to local nighttime
sectors. An enhancement in the greater than 10 MeV protons has
occurred, with current readings near 5 pfu. The greater than 2 MeV
electrons at geosynchronous orbit reached high levels for a few
hours near midday.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be unsettled to mildly active for the next three days.
III. Chans för solutbrott från 22 Jul till 24 Jul
| M-klass | 70% | 70% | 70% |
| X-klass | 20% | 20% | 20% |
| Proton | 20% | 20% | 20% |
| PCAF | yellow | ||
IV. Penticton 10.7 cm Flux
Observerad 21 Jul 183 Prognoserat 22 Jul-24 Jul 185/185/185 90 Day Mean 21 Jul 161
V. Geomagnetiskt A-index
Observerad Afr/Ap 20 Jul 013/018 Förväntat Afr/Ap 21 Jul 015/018 Prognoserat Afr/Ap 22 Jul-24 Jul 010/012-010/010-010/010
VI. Chanser för geomagnetisk aktivitet från 22 Jul till 24 Jul
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 30% |
| Små stormförhållanden | 15% | 15% | 15% |
| Svåra stormförhållanden | 05% | 05% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 40% | 40% | 40% |
| Små stormförhållanden | 15% | 15% | 15% |
| Svåra stormförhållanden | 05% | 05% | 05% |
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