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Solar alert

Issued on 2024 Jan 22 0738 UTC

A partial halo coronal mass ejection (CME) was observed in SOHO/LASCO C2 chronograph images on January 21, at 00:24 UTC with the main direction towards North-East. SIDC/CACTUS tool provides an estimated projected angular width of 186 degrees, and a projected speed of 480 km/s. The source of this CME was located near the bipolar NOAA Active Region 3559 (North-East quadrant). The analysis indicated at most a glancing blow would be visible in the solar wind parameters near Earth around January 24-25 with a minor impact on the solar wind condition and geomagnetic activity.

Issued on 2024 Jan 22 1233 UTC

Following the M1.5-calss flare associated with NOAA Active Region 3559 and registered with a peak time at 06:22 UTC on January 22, the proton flux increased as observed in GOES-16 and GOES-18 measurements. It is now reaching the 10 pfu (10 MeV particles) alert threshold.

Reference for this alert

All Presto solar alerts