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Strong compression of the magnetosphere detected
## NASA Goddard Space Flight Center, Space Weather Center ( SWC )
## Message Type: Space Weather Alert
## Message Issue Date: 2012-06-16T23:08:00Z
## Message ID: 20120616-AL-004
## Alert Summary:
Strong compression of the magnetosphere detected. Simulations carried out SWL indicate that the magnetopause separating magnetospheric and solar wind plasma is close to the geosynchronous orbit (6.6 Re) starting at 2012-06-16T21:20Z (reached a minimum of ~ 6 Re around 2012-06-16T22:28Z).
The activity is associated with the impacts of two CMEs occurred on 2012-06-13 and 2012-06-14 (see alert 20120614-AL-002) with IDs 2012-06-13T14:00:00-CME-001 and 2012-06-14T14:09:00-CME-001.
Moderate geomagnetic storm condition is expected (with Kp around 6).
Spacecraft at the geosynchronous orbits may be exposed to solar wind plasma and magnetic field conditions.
Activity ID: 2012-06-16T21:20:00-MPC-001
For questions, comments, requests etc. contact: GSFC-Space-Weather-Center gsfc-spaceweatherdeskmail [dot] nasa [dot] gov>
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