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Prediction for CME (2014-12-17T05:00:00-CME-001)

CME Observed Time: 2014-12-17T05:00Z
iSWAS Layout URL: https://kauai.ccmc.gsfc.nasa.gov/DONKI/view/CME/7400/-1
CME Note: CME is associated with M8.7 class flare that peaked around 2014-12-17T04:50Z. Shock arrival time verification still pending.
CME Shock Arrival Time: 2014-12-21T04:13Z
Observed Geomagnetic Storm Parameters due to CME:
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Predicted Arrival Time: 2014-12-20T15:00Z
Predicted geomagnetic storm max Kp range due to CME: 5.0 - 5.0
Prediction Method: Other (SIDC)
Prediction Method Note:

:Issued: 2014 Dec 18 2129 UTC
:Product: documentation at http://www.sidc.be/products/presto
#--------------------------------------------------------------------#
# FAST WARNING 'PRESTO' MESSAGE  from the SIDC (RWC-Belgium)         #
#--------------------------------------------------------------------#
Based on new LASCO C3 imagery, the CME associated to the M8.7 flare of December 17 is a halo CME with an estimated velocity of 538 km/s, which yields an estimated arrival time at Earth around 15h UT on December 20. As a result, active to minor storm geomagnetic conditions are possible on December 20 and 21.
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Lead Time: 54.73 hour(s)
Difference: 13.22 hour(s)
Prediction submitted by Leila Mays (GSFC) on 2014-12-18T21:29Z

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