Affichage des archives de dimanche, 15 juillet 2012
Rapport d'activité solaire
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 d'activité solaire et géophysique 2012 Jul 15 2200 UTCFait par le NOAA © SWPC et adapté par SpaceWeatherLive.com
Rapport de l'USAF/NOAA sur l'activité solaire et géophysique
SDF numéro 197 publié à 2200Z le 15 Jul 2012IA. Analyse des régions solaires actives et activité du 14-2100Z au 15-2100Z Solar activity has been at low levels for the past 24
hours. Region 1520 (S17W48) remains the largest and most
magnetically complex region on the disk, however it has remained
rather stable and quiet. Regions 1521 (S21W60) and 1519 (S17W68)
have been the most active regions producing low level C-class
events. Both regions have shown moderate growth in sunspot area and
magnetic complexity. No Earth directed CMEs were observed during
the period.
IB. Prévisions d'activité solaire
Solar activity is expected to be at
low levels with a chance for M-class events for the next three days
(16-18 July).
IIA. Résumé de l'activité géophysique du 14-2100Z au 15-2100Z
The geomagnetic field has been at active to major storm levels for
the past 24 hours. These elevated levels can be attributed to
continuing CME effects. Measurements from the ACE spacecraft showed
variable IMF total field strength and occasional negative Bz early
in the period. Around 0600Z, total IMF peaked around 28 nT, with the
Bz component reaching a maximum deflection of -18 nT. These levels
remained almost constant and elevated throughout the remainder of
the summary period. Multiple major to severe storm periods at high
latitudes with minor to major storm periods at mid latitudes were
observed during the period, due to the 16 hours of sustained
negative Bz coupled with elevated (500-600 km/s) solar wind speeds.
IIB. Prévision de l'activité géophysique
The geomagnetic field is
expected to be at quiet to active levels on day one (16 July) as CME
effects wane. A return to predominantly quiet levels is expected on
days two and three (17-18 July).
III. Probabilité d'éruption solaire du 16 Jul au 18 Jul
| Classe M | 40% | 40% | 40% |
| Classe X | 15% | 15% | 15% |
| Proton | 15% | 15% | 15% |
| PCAF | green | ||
IV. Flux Penticton 10.7 cm
Observé 15 Jul 141 Prévisionnel 16 Jul-18 Jul 135/130/120 Moyenne des 90 derniers jours 15 Jul 128
V. Indice géomagnetique A
Observé Afr/Ap 14 Jul 011/018 Estimé Afr/Ap 15 Jul 032/049 Prévisionnel Afr/Ap 16 Jul-18 Jul 013/018-006/005-005/005
VI. Probabilités d'activité géomagnétique du 16 Jul au 18 Jul
| A. Latitudes moyennes | |||
|---|---|---|---|
| Actif | 30% | 05% | 05% |
| Tempête mineure | 10% | 01% | 01% |
| Tempête majeure/sévère | 01% | 01% | 01% |
| B. Hautes latitudes | |||
|---|---|---|---|
| Actif | 15% | 15% | 15% |
| Tempête mineure | 30% | 10% | 10% |
| Tempête majeure/sévère | 40% | 05% | 05% |
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La Météo Spatiale en faits
| Dernière classe X | 28/03/2024 | X1.1 |
| Dernière classe M | 18/04/2024 | M1.2 |
| Dernier orage géomagnétique | 16/04/2024 | Kp5 (G1) |
| Jours sans taches solaires | |
|---|---|
| Dernier jour sans taches solaires | 08/06/2022 |
| Nombre mensuel moyen de taches solaires | |
|---|---|
| mars 2024 | 104.9 -19.8 |