Weekly space weather report created by Emily Schomp, summer intern at the Harvard Smithsonian Center for Astrophysics (CfA).

1. Space
Weather
August 14-19

2. • 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

3. • 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

4. 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

5. Earth Weeklong Connectivity

6. • ETA is 21st,
expected to be
glancing blow
• Associated with
the M flares
• Fast! Measured
844 km/s
Type IV Halo CME

7. Dynamic Pressure Model for Halo on 17th

8. Velocity Model for Halo on 17th

9. Density Model for Halo on 17th

10. 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

11. BATS-R-US Simulation
8/16/13 From 2:30 to 12:00 UT

12. ACE Weekly Plasma Parameters
Bulk Speed
km/s
Density
cm-3
Ion Temperature
K
Compression zone CH HSS

13. ACE Magnetic Field Weekly Data
Latitude
Longitude
Magnetic
Field
Strength
(nT)
BX
BY
Total Field
Magnetic
Field
Strength
(nT)
BZ

14. Space Weather Fun!
Aurora at Carrot hill near
Wellbank, (Angus, Scotland)
taken Aug. 14 by Ben Hirst
Kreutz Sungrazer comet
captured in SOHO

15. Sundiving Comet