Space Weather Alert – Mag 1.5 Class Flare, Type II Radio Emissions

Space_Alert27/4/13 – Space weather remains active with continued Magnetic Flux alert.

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Begin Time: 2013 Jul 01 0840 UTC
Yesterday Maximum 2MeV Flux: 4867 pfu

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

7/3/13 – Space weather has been more active with yet another alert today. An electron flux alert was also in effect for several days this week. Sun AR1785 near the sun’s southeastern limb poses a growing threat for solar flares. The morning of July 3rd at 0708 UT,  it produced an M 1.5 class flare which caused the radio emission alert below. The CME is not Earth directed.  Currently there are 7 numbered sunspots in view.

Issue Time: 2013 Jul 03 0954 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Jul 03 0709 UTC
Estimated Velocity: 1033 km/s

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

NOAA Space Weather Scales (meaning of R1, S1, Etc.) can be found at

For more detailed current Space Weather visit KnowledgeOrb Space Weather at
Aurora viewing updates can be seen on the KnowledgeOrb Aurora viewing page.

About the author

Recipient of many prestigious NASA Awards including the Exceptional Public Service Medal and the Robert H. Goddard award. Experience includes working for NASA, as a contractor, in satellite design, construction and operations. Expert in the satellite operations concepts and ground systems including command, control, and science data processing.