Het archief bekijken van woensdag 25 april 2012
Activiteitenrapport
Rapport van de zonne- en geofysische activiteit van 2012 Apr 25 2200 UTCOpgemaakt door de NOAA © SWPC en verwerkt door Poollicht.be
USAF/NOAA rapport van de zonneactiviteit en geofysische activiteit
SDF Nummer 116 gepubliceerd omstreeks 2200Z op 25 Apr 2012IA. Analyse van de actieve zonneregio's en zonneactiviteit van 24-2100Z tot 25-2100Z Solar activity was at low levels. Region 1459 (S16W65)
produced a C1 x-ray event at 25/0224Z while Region 1460 (N15W81)
produced a C3/Sf at 25/1215Z. Region 1465 (S17W26) indicated
consolidation in both its leader and trailer spots. The region
appeared to have lost its gamma and delta magnetic configuration,
but still maintained an east to west oriented inversion line. No
discernible changes were noted in the remaining regions. No
Earth-directed CMEs were observed during the period.
IB. Voorspelling zonneactiviteit
Solar activity is expected to remain
at low levels with a slight chance for M-class activity for the next
three days (26 - 28 April).
IIA. Samenvatting geofysische activiteit 24-2100Z tot 25-2100Z
The geomagnetic field ranged from quiet to minor storm conditions
with an isolated high latitude severe storm period observed during
25/0600Z - 0900Z. This activity was due to coronal hole high speed
stream affects (CH HSS). Over the past 24 hours, solar wind
velocities gradually increased from about 600 km/s to near 800 km/s.
Total field strength (Bt) varied between 5 to 12 nT while the Bz
component of the interplanetary magnetic field remained mostly south
from -4 to -10 nT. The greater than 2 MeV electron flux at
geosynchronous orbit reached high levels during the period.
IIB. Voorspelling geofysische activiteit
The geomagnetic field is
expected to be at quiet to active levels with isolated minor storm
periods on day one (26 April) as the 23 April CME is expected to
become geoeffective. Quiet to unsettled levels with isolated active
periods are expected on day two (27 April) as effects of the CME
wane. By day three (28 April), mostly quiet conditions are expected.
III. Kans zonnevlammen van 26 Apr tot 28 Apr
| Klasse M | 20% | 20% | 20% |
| Klasse X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Geobserveerd 25 Apr 127 Voorspeld 26 Apr-28 Apr 125/120/120 90 Day Mean 25 Apr 112
V. Geomagnetische A index
Geobserveerd Afr/Ap 24 Apr 030/043 Verwacht Afr/Ap 25 Apr 018/022 Voorspeld Afr/Ap 26 Apr-28 Apr 017/025-011/015-004/006
VI. Kansen geomagnetische activiteit van 26 Apr tot 28 Apr
| A. Gemiddelde breedtegraad | |||
|---|---|---|---|
| Actief | 50% | 25% | 10% |
| Kleine stormcondities | 20% | 10% | 01% |
| Zware-ernstige stormcondities | 10% | 05% | 01% |
| B. Hoge breedtegraad | |||
|---|---|---|---|
| Actief | 40% | 30% | 10% |
| Kleine stormcondities | 30% | 15% | 01% |
| Zware-ernstige stormcondities | 15% | 10% | 01% |
Laatste nieuws
vrijdag 14 januari 2022
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Ruimteweer feitjes
| Laatste X-klasse uitbarsting | 28/10/2021 | X1.0 |
| Laatste M-klasse uitbarsting | 25/01/2022 | M1.0 |
| Laatste geomagnetische storm | 19/01/2022 | Kp6 (G2) |
| Zonnevlekkenloze dagen | |
|---|---|
| Laatste zonnevlekkenloze dag | 11/12/2021 |