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Issued on 2023 Sep 22 0758 UTC
A partial halo CME with angular width around 150 degrees was first seen by LASCO-C2 at 13:36 UTC on 21 September. The CME was related to the M8.7 flare from NOAA AR 3435. The CME speed was estimated to be around 500 km/s, with the bulk of the material directed to the south. Since the source is located close to disk center, an impact at Earth can be expected on 25 September.
A second wide CME was observed right after the first one, directed towards the NE, this CME is backside and will not affect the Earth.
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