INFO FROM SIDC - RWC BELGIUM 2021 Sep 16 12:30UTC

The solar activity was at very low levels with no C-class flare activity
over the past 24 hours. The only significant feature observable from Earth
is NOAA plage 2870 who is not expected to produce any C-class flares. There
is a small chance of C-class activity from a returning active region for
the next 24 hours.

No Earth-directed CMEs were detected in the available coronagraph imagery
over the past 24 hours.

The greater than 10 MeV proton flux was at nominal levels in the past 24
hours and is expected to remain so in the next 24 hours. The greater than
2MeV electron flux was below the 1000 pfu threshold and is expected to
remain so in the next 24 hours. The 24h fluence for the greater than 2MeV
electron flux was at nominal levels and is expected to remain so in the
next 24 hours.

The Solar Wind (SW) parameters measured by ACE and DSCOVR are typical of
the slow wind regime. The SW speed dropped from 430 to 310 km/s over the
last 24 hours. The total magnetic field (Btot) varied 0.9 and 5.2 nT and
the Bz magnetic field component varied between -3.5 and 3.7 nT during the
past 24 hours. The interplanetary magnetic field was mainly positive
(directed away from the Sun) during the last 24 hours. The solar wind
parameters are expected to remain in the slow SW regime in the next 24
hours.
 
The geomagnetic conditions over the past 24 hours were globally and locally
quiet (NOAA Kp index and K Dourbes 1-2). They are expected to become quiet
both globally and locally in the next 24 hours.