Strong Solar Xray Event Exceeds X1 3/29/14

Space Weather AlertSUMMARY: X-ray Event exceeded X1
Begin Time: 2014 Mar 29 1735 UTC
Maximum Time: 2014 Mar 29 1748 UTC
End Time: 2014 Mar 29 1754 UTC
X-ray Class: X1.0
Optical Class: 2b
Location: N11W34
NOAA Scale: R3 – Strong

An X1-class solar flare emitted from sunspot AR2017  NASA’s SDO recorded the extreme ultraviolet flash March 29th at 1752 UT:

Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio – Wide area blackout of HF (high frequency) radio communication for about an hour.

Aurora viewing updates can be seen on the KnowledgeOrb Aurora viewing page.

NOAA Space Weather Scales (meaning of R1,
S1, Etc.) can be found at
For more detailed current Space Weather visit KnowledgeOrb Space Weather at

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.