space weather report: august 14 to august 19
DESCRIPTION
Weekly space weather report created by Emily Schomp, summer intern at the Harvard Smithsonian Center for Astrophysics (CfA).TRANSCRIPT
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Space Weather
August 14-19
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• 23 C-Class X-ray flares • 2 M-Class X-ray flares • 26 Optical Flares • Active Regions • 1 Earth-Directed CME • 10 Radio Bursts
Activity – Energetic!
Super Star Meets the Plucky Planet NASA
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• Most Active Regions, 11809, 11817, 11818
• M class flares on 17th from 11818 o 18:24 M3.3 o 19:33 M1.4 o Cause of CME, and type II
and IV radio sweeps
X-ray Flares
M
C
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Energetic Events on 17th
Time X-ray
Peak Radio Flux Sweep Freq Intensity
Class Integ Flux 245 2695 II IV
18:16 - 18:35 18:49 - 19:54
M3.3 M1.4
0.021 0.046
260
110 150
2
1
Storm!
SEP associated with flares
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Earth Weeklong Connectivity
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• ETA is 21st, expected to be glancing blow
• Associated with the M flares
• Fast! Measured 844 km/s
Type IV Halo CME
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Dynamic Pressure Model for Halo on 17th
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Velocity Model for Halo on 17th
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Density Model for Halo on 17th
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Storm hits 3:45 UTC on 16th
Proton Flux (cm-2 s-1 sr-1)
Electron Flux (cm-2 s-1 sr-1)
Kp Index Predicted Observed
Hp Index
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BATS-R-US Simulation 8/16/13 From 2:30 to 12:00 UT
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ACE Weekly Plasma Parameters
Bulk Speed km/s
Density cm-3
Ion Temperature K
Compression zone CH HSS
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ACE Magnetic Field Weekly Data
Latitude Longitude
Magnetic Field Strength (nT) BX BY Total Field
Magnetic Field Strength (nT) BZ
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Space Weather Fun!
Aurora at Carrot hill near Wellbank, (Angus, Scotland) taken Aug. 14 by Ben Hirst
Kreutz Sungrazer comet captured in SOHO
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Sundiving Comet