Dear Collaborators,

Solar activity has returned to low levels. The largest event since the last message was a C1.7 flare at 06:09 UT today produced by the target region NOAA 13473. This region also produced 2 C1.2 and 1 B-class flares. It retains a beta/B-type magnetic configuration and has increased in spot counts. The target region shall remain with NOAA 13473, due to its past flaring history as well as a high and increasing current helicity. Besides, NOAA 13471 (S23W53, beta-gamma/C-type) and NOAA 13472 (N19E22, beta/C-type) were also sources of several C1 and B-class flares. Further C-class flares are expected in the following 24-hour period.

The position of NOAA 13473 on 28-Oct-2023 at 11:30 UT is:

N16E50 (-712", 216")

See http://www.SolarMonitor.org for images and http://solar.physics.montana.edu/max_millennium/ops/observing.shtml for a description of the current Max Millennium Observing Plan.

Regards,

Qiao Li (Purple Mountain Observatory)