Thursday, January 9, 2014

Awaiting X-Flare CME impact...subsiding Radiation Storm (for now) via Solar Ham

Still Waiting
As of this update at 13:00 UTC (8:00am EST), the expected incoming coronal mass ejection (CME) has yet to be detected. The solar wind speed as measured by the ACE space craft is currently steady near 400 km/s. Low energy proton levels measured by the EPAM (Electron, Proton, and Alpha Monitor) instrument on board ACE continue to trend somewhat higher. The latest NOAA update is still calling for an impact at some point today. Stay tuned for the latest updates.
Updated 01/09/2014 @ 09:45 UTC
Strong Radiation Storm
The ongoing proton bombardment continues this evening. The strong S3 level radiation storm threshold was breached. Potential impacts are listed below. Attached image by LASCO C2 captures the ongoing particle "snow storm". This happens when energetic particles saturate the camera on board the SOHO spacecraft.
Update @ 09:45 UTC: Proton levels are slowly beginning to decline and are now below the strong S3 radiation storm threshold. A moderate S2 storm remains in progress.
ALERT: Proton Event 10MeV Integral Flux exceeded 1000pfu
Begin Time: 2014 Jan 08 2320 UTC
NOAA Scale: S3 - Strong
Potential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience increasing radiation exposures. Astronauts on EVA (extra-vehicular activity) are exposed to elevated radiation levels.
Spacecraft - Single-event upsets to satellite operations, noise in imaging systems, and slight reduction of efficiency in solar panels are likely.
Radio - Degraded or episodically blacked-out polar HF (high frequency) radio propagation.


Latest Proton Graph: radiation storm subsiding


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