Viewing archive of tisdag, 24 juli 2012
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 2012 Jul 24 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 206 publicerat klockan 2200Z på 24 Jul 2012IA. Analys av solfläcksgrupper och solaktivitet från 23-2100Z till 24-2100Z Solar activity was low. New Region 1530 (S19E68) was
responsible for multiple low level C-class flares. The largest was
a C4/Sf at 24/1905Z. SDO and STEREO-B EUVI 195 imagery show
brightening behind the northeast and southeast limbs, suggesting the
presence of more active regions yet to rotate onto the visible disk.
IB. Prognos för solaktivitet
Solar activity is expected to be at
low levels.
IIA. Sammanfattning av geofysisk aktivitet 23-2100Z till 24-2100Z
The geomagnetic field was at quiet to unsettled levels with an
isolated minor storm period at high latitudes from 24/1200 - 1500Z.
Solar wind measurements at the ACE spacecraft showed an increase in
solar wind speed from approximately 450 km/s to 580 km/s by 24/0830Z
before decreasing to 500 km/s by the end of the period. This is
likely due to the influence of a geoeffective coronal hole high
speed stream. The greater than 10 MeV proton event at
geosynchronous orbit that began at 23/1545Z, reached a maximum flux
of 12 pfu at 23/2145Z and continued to fluctuate near the 10 pfu
threshold. The greater than 2 MeV electron flux at geosynchronous
orbit reached high levels during the period.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be at quiet to unsettled levels with a slight chance for
active periods on day 1 (25 July) due to persistent effects from the
coronal hole high speed stream. Mostly quiet conditions are
expected for days 2 - 3 (26 - 27 July).
III. Chans för solutbrott från 25 Jul till 27 Jul
| M-klass | 05% | 05% | 05% |
| X-klass | 01% | 01% | 01% |
| Proton | 30% | 01% | 01% |
| PCAF | yellow | ||
IV. Penticton 10.7 cm Flux
Observerad 24 Jul 102 Prognoserat 25 Jul-27 Jul 110/115/115 90 Day Mean 24 Jul 126
V. Geomagnetiskt A-index
Observerad Afr/Ap 23 Jul 008/012 Förväntat Afr/Ap 24 Jul 009/010 Prognoserat Afr/Ap 25 Jul-27 Jul 008/008-006/005-006/005
VI. Chanser för geomagnetisk aktivitet från 25 Jul till 27 Jul
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 10% | 05% | 05% |
| Små stormförhållanden | 05% | 01% | 01% |
| Svåra stormförhållanden | 01% | 01% | 01% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 15% | 15% | 15% |
| Små stormförhållanden | 15% | 10% | 10% |
| Svåra stormförhållanden | 05% | 05% | 05% |
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Rymdvädersfakta
| Senaste X-utbrottet | 2024/05/08 | X1.0 |
| Senaste M-utbrottet | 2024/05/08 | M2.0 |
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| Fläckfria dagar | |
|---|---|
| Senaste dag utan solfläckar | 2022/06/08 |
| Månadsvis faktiskt antal solfläckar | |
|---|---|
| april 2024 | 136.5 +31.6 |
| Last 30 days | 161.2 +69.2 |