Previsione Meteo Spaziale - Discussione

Rilasciato: 2019 Jul 21 1230 UTC
Preparato dal Dipartimento di Commercio degli Stati Uniti, NOAA, Space Weather Prediction Center ed elaborato da SpaceWeatherLive.com

Attività solare

Sommario delle 24 ore
Solar activity remained very low with a spotless visible disk. No Earth-directed CMEs were observed in available coronagraph imagery.
Previsione
Solar activity is expected to remain very low on 21-23 Jul.

Particelle energetiche

Sommario delle 24 ore
The greater than 2 MeV electron flux was at moderate to high levels with a maximum flux of 1,846 pfu observed at 20/1815 UTC. The greater than 10 MeV proton flux continued at background values.
Previsione
The greater than 2 MeV electron flux is expected to reach moderate to high levels on 21 Jul, decreasing to normal to moderate levels on 22-23 Jul. The greater than 10 MeV proton flux is expected to remain at background levels.

Vento Solare

Sommario delle 24 ore
Solar wind parameters, as measured by the ACE spacecraft, indicated nominal conditions. Solar winds speeds were between 315-360 km/s. Total magnetic field strength ranged from 3-5 nT. Phi angle was predominantly oriented in the positive sector after 20/1320 UTC.
Previsione
Mostly nominal wind parameters are expected until early on 23 Jul, when mild influence from a negative polarity CH HSS is anticipated.

Geospace

Sommario delle 24 ore
The geomagnetic field was quiet.
Previsione
The geomagnetic field is expected to persist at quiet levels on 21-22 Jul. Unsettled conditions are likely on 23 Jul in response to weak influence from a negative polarity CH HSS.

Ultime notizie

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Notizie sul meteo spaziale

Ultimo X-flare:2017/09/10X8.2
Ultimo M-flare:2017/10/20M1.0
Ultima tempesta geomagnetica:2019/07/10Kp5 (G1)
Numero di giorni senza macchie nel 2019:132
Attuali giornate senza macchie:14

Questo giorno nella storia*

Flares solari
12000M5.5
22000M3.3
32000M1.9
42000M1.9
52000M1.7
ApG
1200521G1
2200220G1
3199914G1
4201713
5201112
*dal 1994

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