Viewing archive of tisdag, 17 april 2001
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 2001 Apr 17 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 107 publicerat klockan 2200Z på 17 Apr 2001IA. Analys av solfläcksgrupper och solaktivitet från 16-2100Z till 17-2100Z Solar activity has been low. There were several
optically uncorrelated C-class events during the period. New Region
9431 (S10E49) was numbered today.
IB. Prognos för solaktivitet
Solar activity is expected to be low
with an isolated chance for a M-class event.
IIA. Sammanfattning av geofysisk aktivitet 16-2100Z till 17-2100Z
The geomagnetic field was quiet to unsettled. The greater than 10
MeV proton event that started on April 15 is still in progress. The
greater than 100 proton event that began at 15/1405 UTC reached a
maximum of 146 pfu at 15/1525 UTC and ended at 17/0515 UTC. The
polar cap absorption (PCA) event ended at 17/0315 UTC. The greater
than 2 MeV electrons at geosynchronous orbit remained at high levels
and above threshold through the period.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be unsettled to active for April 18 and 19 as a result
of possible effects from the X14/2b event on April 15, and possible
effects from a well positioned coronal hole. Quiet to unsettled
conditions are expected to return on April 20. The greater than 10
MeV proton event is expected to go below threshold on April 18.
III. Chans för solutbrott från 18 Apr till 20 Apr
| M-klass | 60% | 50% | 50% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 17 Apr 126 Prognoserat 18 Apr-20 Apr 135/145/155 90 Day Mean 17 Apr 165
V. Geomagnetiskt A-index
Observerad Afr/Ap 16 Apr 007/007 Förväntat Afr/Ap 17 Apr 008/015 Prognoserat Afr/Ap 18 Apr-20 Apr 020/025-015/020-010/015
VI. Chanser för geomagnetisk aktivitet från 18 Apr till 20 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 50% | 25% | 20% |
| Små stormförhållanden | 10% | 05% | 05% |
| Svåra stormförhållanden | 05% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 50% | 40% | 30% |
| Små stormförhållanden | 15% | 10% | 10% |
| Svåra stormförhållanden | 10% | 05% | 05% |
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Rymdvädersfakta
| Senaste X-utbrottet | 2024/03/28 | X1.1 |
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|---|---|
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