Viewing archive of måndag, 26 april 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 Apr 26 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 117 publicerat klockan 2200Z på 26 Apr 2004IA. Analys av solfläcksgrupper och solaktivitet från 25-2100Z till 26-2100Z Solar activity was low. There was only one C-class
event during the past 24 hours, a C2/Sf from Region 599 (N16E15) at
0242 UTC. Although this region emerged rapidly yesterday, the past
24 hours have see a noticeable decrease in spot area, flare
production, and overall brightness of the region. New Region 600
(N18W06) emerged on the disk today as a small beta-type sunspot
group.
IB. Prognos för solaktivitet
Solar activity is expected to be
predominantly low for the next three days. There is a slight chance
for an isolated M-class event.
IIA. Sammanfattning av geofysisk aktivitet 25-2100Z till 26-2100Z
The geomagnetic field was quiet to unsettled. Mostly quiet conditions
prevailed early in the day as solar wind signatures showed a gradual
declining trend in solar wind velocity with very weak interplanetary
magnetic field, up until around 1520 UTC. Beginning around 1520 UTC
a compression wave followed by some transient flow was observed:
density, velocity, temperature and magnetic field all increased over
a few minutes, and Bz showed a rotation over 2-3 hours from +5 to
around -7 nT. The geomagnetic field responded by an increase to
unsettled levels.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is
expected to be predominantly unsettled for the next 24 hours (27
April). Quiet to unsettled levels are expected to prevail for the
second and third days (28-29 April).
III. Chans för solutbrott från 27 Apr till 29 Apr
| M-klass | 15% | 15% | 15% |
| X-klass | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observerad 26 Apr 100 Prognoserat 27 Apr-29 Apr 100/095/090 90 Day Mean 26 Apr 107
V. Geomagnetiskt A-index
Observerad Afr/Ap 25 Apr 007/012 Förväntat Afr/Ap 26 Apr 007/007 Prognoserat Afr/Ap 27 Apr-29 Apr 010/010-005/008-005/008
VI. Chanser för geomagnetisk aktivitet från 27 Apr till 29 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 20% | 15% | 15% |
| Små stormförhållanden | 15% | 10% | 10% |
| Svåra stormförhållanden | 10% | 05% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 25% | 20% | 20% |
| Små stormförhållanden | 20% | 15% | 15% |
| Svåra stormförhållanden | 15% | 05% | 05% |
Senaste nytt
måndag, 22 april 2024
Lot's of sunspots! Big chance for major flare activity?
lördag, 23 mars 2024
X1.1 solar flare with earth-directed CME
onsdag, 20 mars 2024
Sunspot region 3615, G1 watch
Senaste inläggen
What are these long and thin eruptions? 6IMF - BT strength 3AR 3637, 3638, 3643 89Unproven theories 341Space Weather Memes 338
Fler foruminläggStöd SpaceWeatherLive.com!
För att vara tillgängliga vid stora norrskensutbrott måsta vi ha kraftiga servrar som kan hantera alla besökare. Donera och stöd vårt projekt, så att vi kan finnas online även under stora stormar!
Rymdvädersfakta
| Senaste X-utbrottet | 2024/03/28 | X1.1 |
| Senaste M-utbrottet | 2024/04/25 | M1.3 |
| Senaste geomagnetiska stormen | 2024/04/19 | Kp7 (G3) |
| Fläckfria dagar | |
|---|---|
| Senaste dag utan solfläckar | 2022/06/08 |
| Månadsvis faktiskt antal solfläckar | |
|---|---|
| mars 2024 | 104.9 -19.8 |
| Last 30 days | 133.4 +25.6 |