Viewing archive of fredag, 18 april 2014
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 2014 Apr 18 2200 UTCSkapad av NOAA © SWPC och bearbetad av SpaceWeatherLive.com
USAF/NOAA rapport för sol- och geofysisk aktivitet
SDF Nummer 108 publicerat klockan 2200Z på 18 Apr 2014IA. Analys av solfläcksgrupper och solaktivitet från 17-2100Z till 18-2100Z Solar activity reached high levels. Region 2036 (S16W41,
Dhc/beta-gamma) produced an M7 flare at 18/1303 UTC, which was the
largest flare of the period. It was accompanied by a Tenflare (1000
sfu), a Castelli-U signature, as well as Type II (851 km/s) and Type IV
radio emissions. An asymmetric halo CME was subsequently observed in
SOHO/LASCO C2 coronagraph imagery at 18/1325 UTC. Analysis suggested the
ejecta was moving at approximately 1000 km/s and Earth-directed.
IB. Prognos för solaktivitet
Solar activity is likely to be moderate
with a slight chance for an X-class flare on days one, two, and three
(19 Apr, 20 Apr, 21 Apr).
IIA. Sammanfattning av geofysisk aktivitet 17-2100Z till 18-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed,
as measured by the ACE spacecraft, reached a peak speed of 540 km/s at
18/1845Z. Total IMF reached 9 nT at 18/0207Z. The maximum southward
component of Bz reached -8 nT at 18/0243Z. Protons greater than 10 MeV
at geosynchronous orbit reached a peak level of 38 pfu at 18/1955Z.
IIB. Prognos för geofysisk aktivitet
The geomagnetic field is expected
to be at quiet to active levels on day one (19 Apr) and quiet to minor
storm levels on days two and three (20 Apr, 21 Apr) with a chance for
major storm levels on day two (20 Apr). Protons are expected to remain
above the 10 pfu threshold on day one (19 Apr), are expected to cross
threshold on day two (20 Apr) and have a chance of crossing threshold on
day three (21 Apr).
III. Chans för solutbrott från 19 Apr till 21 Apr
| M-klass | 60% | 60% | 60% |
| X-klass | 10% | 10% | 10% |
| Proton | 99% | 75% | 50% |
| PCAF | yellow | ||
IV. Penticton 10.7 cm Flux
Observerad 18 Apr 172 Prognoserat 19 Apr-21 Apr 175/175/175 90 Day Mean 18 Apr 156
V. Geomagnetiskt A-index
Observerad Afr/Ap 17 Apr 011/011 Förväntat Afr/Ap 18 Apr 007/008 Prognoserat Afr/Ap 19 Apr-21 Apr 009/012-018/025-017/020
VI. Chanser för geomagnetisk aktivitet från 19 Apr till 21 Apr
| A. Medelhöga breddgrader | |||
|---|---|---|---|
| Aktivt | 40% | 40% | 40% |
| Små stormförhållanden | 15% | 35% | 25% |
| Svåra stormförhållanden | 01% | 10% | 05% |
| B. Höga breddgrader | |||
|---|---|---|---|
| Aktivt | 10% | 05% | 05% |
| Små stormförhållanden | 25% | 20% | 20% |
| Svåra stormförhållanden | 55% | 75% | 60% |
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
AR3654 1IMF - BT strength 5What are these long and thin eruptions? 6AR 3637, 3638, 3643 89Unproven theories 341
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 | 135.5 +27.6 |