Viewing archive of onsdag, 28 januari 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 Jan 28 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 028 publicerat klockan 2200Z på 28 Jan 2004IA. Analys av solfläcksgrupper och solaktivitet från 27-2100Z till 28-2100Z Solar activity was very low. There were no flares in
the past 24 hours. The solar disk was devoid of spots for most of
the day, but towards the end of the period there was evidence for a
new active region (or regions) rotating on the disk at latitudes
S10-S15, near the location where old Region 536 would be expected.
IB. Prognos för solaktivitet
Solar activity is expected to be very
low. There should be a slow rise in background levels as the new
active region (or regions) rotate into view.
IIA. Sammanfattning av geofysisk aktivitet 27-2100Z till 28-2100Z
The geomagnetic field ranged from unsettled to minor storm levels.
Solar wind velocity showed a gradual increase beginning around 0100
UTC, and this was accompanied by frequent fluctuations in the
interplanetary Bz component in the range of about -7 nT to +7 nT.
These signatures together with a consistent 'away' polarity in the
solar phi angle all suggest that the activity was driven by
favorably positioned positive polarity coronal hole. The greater
than 2 MeV electron fluxes were at high levels during the past 24
hours.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be unsettled with occasional active periods for the next
two days (29-30 January). An increase to unsettled to active is
expected on the third day (31 January) as another coronal hole
rotates into favorable position.
III. Chans för solutbrott från 29 Jan till 31 Jan
| M-klass | 01% | 01% | 01% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observerad 28 Jan 089 Prognoserat 29 Jan-31 Jan 100/105/105 90 Day Mean 28 Jan 126
V. Geomagnetiskt A-index
Observerad Afr/Ap 27 Jan 013/016 Förväntat Afr/Ap 28 Jan 015/019 Prognoserat Afr/Ap 29 Jan-31 Jan 010/015-010/015-010/020
VI. Chanser för geomagnetisk aktivitet från 29 Jan till 31 Jan
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 25% | 25% |
| Små stormförhållanden | 15% | 15% | 15% |
| Svåra stormförhållanden | 05% | 05% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 30% | 30% | 30% |
| Små stormförhållanden | 20% | 20% | 20% |
| Svåra stormförhållanden | 05% | 05% | 05% |
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