太陽を地球よりも右斜めから観測しているSTEREO Ahead衛星のCOR2では、CMEは、地球のある左側に大きく飛び出しています。 stereo-ssc.nascom.nasa.gov/b…
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Lovely CME from it! Measuring around 800 km/s with triangulation (It does show in up STEREO-A's COR2, but unsure why this specific frame is blank), assuming I'm triangulating it correctly.
AR14464 looks to have just fired a quite large CME to the southwest. Probably zero chance we get anything from it, but it sure is impressive on SUVI 195!
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Jun 13
CME DETECTED -- Speed: 649km/s. Half-angle: 35.0 degrees. Estimated Earth arrival: Measurement based on best fit among SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 as well as on visible source locati. Source: NASA DONKI.
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Jun 13
CME DETECTED -- Speed: 533km/s. Half-angle: 19.0 degrees. Estimated Earth arrival: Plane-of-sky using a longitude of E90 due to lack of clear source and no STEREO A COR2 imagery to triangulate.. Source: NASA DONKI.
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C9.0 flare also from AR 14465. Like its predecessor, C6.7 around midnight, the global disturbances were unimpressive with a weak coronal wave, but they seem to have triggered small eruptions in the southwest (to lower right) direction. Only marginal CME in STEREO/COR2.
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Jun 12
CME DETECTED -- Speed: 561km/s. Half-angle: 22.0 degrees. Estimated Earth arrival: GOES CCOR-1 plane-of-sky with no STEREO A COR2 to triangulate the far-sided source.. Source: NASA DONKI.
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Jun 12
CME DETECTED -- Speed: 619km/s. Half-angle: 31.0 degrees. Estimated Earth arrival: Measurement based on approximate source location and best fit in SOHO LASCO C2, STEREO A COR2 and GOES CCOR-1.. Source: NASA DONKI.
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towe🌰🐿🌱 retweeted
Jun 11
The CME is also captured in Stereo A Cor2 images. It seems a relatively slow event, launched at about 700-900 km/s. It does appear fairly dense.
Jun 11
BOOM! A long duration C6.6 flare in AR 4465 around midnight UTC launched a full-halo CME. The CME is lopsided, but there is likely an Earth-directed component. The bulk is going to the NE of us.
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