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Product: Daily Forecast of Geomagnetic Activity
Issued: 2014 October 15 09:42UTC
Prepared by the Athens Space Weather Forecasting Center
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1. Solar activity
Solar activity was almost stable during the past 24 hours.
Solar Flux (10.7) measured on 14.10.2014 at 2300UTC was 120 sfu.
The background x-ray flux is at the class B6 level.
The geomagnetic field was quiet to active on October 14.
A HALO CME spotted on C2 and C3 LASCO at Oct. 14th 19:00 U.T. the velocity of the CME was about 900 km/s.
GOES Hp is quiet to unsettled with Kp=2.

2. Solar Wind Geomagnetic Activity
ACE: Vsw is 450 km/s.
STEREO A: Vsw is 350 km/s.
STEREO B: N/A.
Bz is 3.2 nT north.

3. Solar Energetic Particle Events
None. Protons and electrons are quiet.

4. Coronal Holes
A recurrent northern hemisphere coronal hole (CH639) will likely rotate into an Earth facing position on October 17.

5. Geophysical Activity Forecast
The geomagnetic field is expected to be quiet to active on October 15 and quiet to unsettled on October 16-17 due to coronal hole effects. Effects from the HALO CME are also possible on Oct. 17th.

Date             Ap
2014.10.15       8
2014.10.16       6
2014.10.17       18

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Athens Space Weather Forecasting Center
Physics Department, National & Kapodistrian University of Athens
Athens Neutron Monitor Station A.NE.MO.S
Tel.: +30 210 727 6901
email: spaceweather@phys.uoa.gr
URL: http://spaceweather.phys.uoa.gr
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