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[GO-chat] Auroral Activity Update
- Subject: [GO-chat] Auroral Activity Update
- Sent: Thursday, June 08, 2000 10:39 AM
> * * * * * * * * * * * * * * *
> * DISTURBANCE ARRIVAL ALERT *
> * * * * * * * * * * * * * * *
>
> 09:05 UTC, 08 June, 2000
>
> The anticipated coronal mass ejection associated with the class
> X2.3/3B solar flare of 06 June impacted the ACE spacecraft at 08:42
> UTC. This is several hours earlier than anticipated and suggests a
> higher overall velocity. Solar wind measurements currently show solar
> wind speeds in excess of 750 km/sec and erratic but strongly southward
> magnetic fields that would be favorable for the production of
> significant geomagnetic and auroral storming.
>
> It is still too early to determine whether the core of the
> disturbance will contain correctly oriented magnetic fields, although
> it appears likely that there will be periods of strong and potentially
> extended southwardly directed magnetic fields that would be very
> favorable for the production of strong geomagnetic storming.
>
> More will be known over the coming hours as the Earth begins to
> penetrate deeper into the disturbance.
>
>
> ** End of Alert **
>
>
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