Thursday, January 27, 2011

M1.4 Magnitude X-ray Flare 28 January 2011

From: "Tomas Hood (NW7US)"

At 0104 UTC, 28 January 2011, an X-ray flare with a flux magnitude of M1.4 erupted, unleasing a coronal mass ejection. The associated coronal mass ejection was not directed toward Earth, so it will not affect radio propagation at all. The only affect was the immediate (within eight minutes) where there was a short-lived Sudden Ionospheric Disturbance on lower frequencies, and, there was also a Type II radio burst (a rushing wind sound on HF).

The source of the eruption was the active sunspot region 11149 (and possibly involved the region 11147, which is north of 11149). These have now rotated out of view from Earth. That's why the CME is not heading our way. it erupted out into space away from us.

Here are a few movies I've posted:

The actual flare and CME as seen at the 304 Angstrom wavelength:

The CME as seen by LASCO C2:

The active Sunspot regions 11147 and 11149, showing flares and surges prior to the M1.4 Magnitude flare:

73 de NW7US,

Tomas David Hood
Hamilton, Montana


Twitter Space WX : @hfradiospacewx
Twitter NW7US : @NW7US