PRESTO ALERT

:Issued: 2022 May 28 2102 UTC
:Product: documentation at http://www.sidc.be/products/presto
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# FAST WARNING 'PRESTO' MESSAGE  from the SIDC (RWC-Belgium)         #
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A partial Halo CME was detected by Cactus, occurring on May 28 15:24UTC,
with a projected speed of 529km/s. Although SDO/AIA 304 data show activity
in NOAA AR 3021 about that time, the orientation of this particular CME in
Stereo A COR2 data seem to indicate a back-sided event.
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