X-ray index
Diagram of the solar flare activity
X-ray emission of the Sun on Jun 20, 2017 and Jun 21, 2017 (GOES-15)
Solar flares on Jun 21, 2017
No solar flares of C, M and X-class were observed
Solar flares on Jun 20, 2017
No solar flares of C, M and X-class were observed