Recent Events Reported by Observers
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Detected by weiliu, Submitted at 2015-12-30T02:08:13
2015-12-23T00:20:06 --> 2015-12-23T02:20:06
A global EUV (EIT) wave associated with a CME and flare originated from the SE limb.
Detected by halocme, Submitted at 2015-12-29T19:07:26
2015-12-28T10:00:06 --> 2015-12-29T00:00:06
After the big eruption that launched an Earth-directed CME, there were several surges in absorption in 304 A images, whose higher-temperature counterparts were also seen in 211 A and 171 A images. These originate from the western part of the leading spot of AR 12473. We need to examine magnetograms to find if they were due to moving magnetic features or flux emergence.
Detected by halocme, Submitted at 2015-12-29T19:07:25
2015-12-28T10:00:06 --> 2015-12-29T00:00:06
After the big eruption that launched an Earth-directed CME, there were several surges in absorption in 304 A images, whose higher-temperature counterparts were also seen in 211 A and 171 A images. These originate from the western part of the leading spot of AR 12473. We need to examine magnetograms to find if they were due to moving magnetic features or flux emergence.
Detected by halocme, Submitted at 2015-12-29T19:07:25
2015-12-28T10:00:06 --> 2015-12-29T00:00:06
After the big eruption that launched an Earth-directed CME, there were several surges in absorption in 304 A images, whose higher-temperature counterparts were also seen in 211 A and 171 A images. These originate from the western part of the leading spot of AR 12473. We need to examine magnetograms to find if they were due to moving magnetic features or flux emergence.
Detected by halocme, Submitted at 2015-12-29T18:29:00
2015-12-28T10:00:06 --> 2015-12-29T05:00:06
The eruption associated with the M1.86 flare in AR 12473 produced twin dimming, which is often seen in a sigmoid region. The dimming region, especially the one west of the flare, has taken long time (> 12 hours) to recover, suggesting significant mass evacuation due to the eruption. The CME from this eruption is predicted to hit Earth on 30-31 December (see https://twitter.com/halocme/status/681551822083903488 and https://twitter.com/halocme/status/681602361291227136).
Detected by halocme, Submitted at 2015-12-29T17:46:28
2015-12-28T11:20:23 --> 2015-12-28T15:20:23
Sigmoid region AR 12473 finally erupted, resulting in a long-duration event that showed a high-temperature cusp structure above the post-eruptive arcade.
Detected by halocme, Submitted at 2015-12-29T17:46:27
2015-12-28T11:20:23 --> 2015-12-28T15:20:23
Sigmoid region AR 12473 finally erupted, resulting in a long-duration event that showed a high-temperature cusp structure above the post-eruptive arcade.
Detected by halocme, Submitted at 2015-12-25T00:07:23
2015-12-23T00:15:34 --> 2015-12-23T01:29:58
This flare from AR 12473 (https://twitter.com/halocme/status/679482830162931712) reveals eruptive signatures (coronal dimming, large-scale coronal propagating front, oscillations) even in intensity (non-difference) images.
Detected by halocme, Submitted at 2015-12-25T00:07:23
2015-12-23T00:15:34 --> 2015-12-23T01:29:58
This flare from AR 12473 (https://twitter.com/halocme/status/679482830162931712) reveals eruptive signatures (coronal dimming, large-scale coronal propagating front, oscillations) even in intensity (non-difference) images.
Detected by halocme, Submitted at 2015-12-25T00:07:22
2015-12-23T00:15:34 --> 2015-12-23T01:29:58
This flare from AR 12473 (https://twitter.com/halocme/status/679482830162931712) reveals eruptive signatures (coronal dimming, large-scale coronal propagating front, oscillations) even in intensity (non-difference) images.
Detected by halocme, Submitted at 2015-12-25T00:07:22
2015-12-23T00:15:34 --> 2015-12-23T01:29:58
This flare from AR 12473 (https://twitter.com/halocme/status/679482830162931712) reveals eruptive signatures (coronal dimming, large-scale coronal propagating front, oscillations) even in intensity (non-difference) images.
Detected by halocme, Submitted at 2015-12-24T23:59:51
2015-12-22T02:50:22 --> 2015-12-22T04:10:46
The M1.6 flare in AR 12473 was eruptive with fast disturbances primarily to west/southwest. The prominence above the limb gives an impression that it is stuck at some height.
Detected by halocme, Submitted at 2015-12-24T23:47:52
2015-12-22T21:00:34 --> 2015-12-23T00:00:34
This is barely seen in 171 A (and 304 A) images. No disk signatures, so the source region should be on the far side.
Detected by halocme, Submitted at 2015-12-24T23:28:54
2015-12-22T05:00:06 --> 2015-12-22T06:10:06
Mass injection from the western leg of the filament caused brightening at the other leg. The region between them also showed minor brightening, presumably reflecting reconnection due to a slight ascent of the whole structure.
Detected by halocme, Submitted at 2015-12-22T05:09:09
2015-12-21T00:45:34 --> 2015-12-21T01:40:46
AR 12472 had almost rotated into the visible hemisphere, when it produced the M2.8 flare. It ejected a compact filament or plasmoid pre-heated to the coronal temperatures. Although loop oscillations were seen and a type II burst was reported, the associated CME was neither wide nor particularly fast (~600 km/s), alghough quite bright in the beginning.
Detected by halocme, Submitted at 2015-12-22T05:09:08
2015-12-21T00:45:34 --> 2015-12-21T01:40:46
AR 12472 had almost rotated into the visible hemisphere, when it produced the M2.8 flare. It ejected a compact filament or plasmoid pre-heated to the coronal temperatures. Although loop oscillations were seen and a type II burst was reported, the associated CME was neither wide nor particularly fast (~600 km/s), alghough quite bright in the beginning.
Detected by halocme, Submitted at 2015-12-22T04:38:03
2015-12-19T21:10:10 --> 2015-12-19T23:40:10
This eruption was associated with a partially occulted C4.5 flare. It occurred in the same region as the previous eruption that accompanied a large-scale coronal propagating front around 13 UT, but the magnitude of eruption was much smaller. Only a marginal CME was seen.
Detected by halocme, Submitted at 2015-12-22T04:27:49
2015-12-19T12:15:34 --> 2015-12-19T14:25:10
The eruption originated around N05E110 (thanks to EUVI on STEREO-A). Reflecting the primary direction of the eruption, the front is seen to propagate mostly clockwise.
Detected by halocme, Submitted at 2015-12-22T04:18:15
2015-12-19T03:30:34 --> 2015-12-19T08:40:34
The filament lay in a quiescent region and slowly erupted, leaving two-ribbon brightening. The associated CME was also slow, something like 200 km/s.
Detected by halocme, Submitted at 2015-12-22T04:07:20
2015-12-19T01:50:22 --> 2015-12-19T04:10:22
This jet was preceded by a short duration (01:59, 02:04, 02:08) C3.1 flare in AR 12468. The flare briefly threw plasma northward, and the jet occurred as (cool) plasma came back to the flare region. The jet, ejected westward, also hd horizontal expanse, which seemed to trigger a brightening in the region to the north.
