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2023 February 16


Aftermath of a large CME observed by XRT. Click the image to watch
or click here for the youtube version.

CME Aftermath: 27 January 2023

The XRT coalignment program is run roughly every 2 weeks to take the images of the Northern and Eastern solar limbs for about 4 hours in total. These images are obtained not for science, but to monitor the small movement of Hinode satellite's pointing for later corrections. So they are usually a boring series of a half Sun images.

During its run on the 27th January 2023, however, the coalignment program happened to capture a dynamic motion of coronal plasma above the SE limb. It was probably caused by the C5.2 flare (07:27---08:07) from the AR13206 located near the SE limb. This flare was associated with the CME (coronal mass ejection), as appeared in this SOHO/LASCO movie from George Mason University Space Weather Lab.

However, we don't see any CME or upward motion in the XRT movie. So what we see is considered to be the aftermath of the CME launched shortly before our observation started.

Keywords: Limb, CME
Filters: Al_Poly

(Prepared by Aki Takeda and Rhiannon Fleming)

The XRT instrument team is comprised of SAO, NASA, JAXA, and NAOJ.

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