Highest Rated Events (only 193 and 304 shown) All AR FE FL

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by jinmeng, Submitted at 2016-02-04T23:05:46

2016-02-03T12:50:06 --> 2016-02-04T00:00:06

The flux emergence seems to trigger the surrounding activities and an active region eruption nearby.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by jinmeng, Submitted at 2016-02-04T19:24:41

2016-02-03T03:30:06 --> 2016-02-03T10:50:06

Quiet Sun filament eruptions. Two filament channels are involved. After eruption, the filaments still can be seen, which may indicates a partial eruption or a reformation process.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2016-01-29T01:48:11

2016-01-27T15:30:34 --> 2016-01-27T20:00:34

A flux rope-like structure is seen to move upward slowly, most notably in 171 A images. The prominence in 304 A images does not seem to erupt, but its higher-temperature counterpart does. This is an event that can easily escape our attention. There is hardly presence in coronagraph data.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2016-01-27T01:34:59

2016-01-26T16:30:34 --> 2016-01-26T19:30:34

We finally saw the spectacular eruption of the filament whose northwestern end was close to AR 12487. Although turbulent motions were occasionally seen prior to the eruption, no systematic upward motions were seen in images. Perhaps spectroscopic observations might have predicted the eruption in advance. The eruption itself was primarily toward southwest, so its potential to affect the geo-space may be limited.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2016-01-19T19:24:07

2016-01-16T05:10:10 --> 2016-01-16T06:30:10

I occasionally start my annotations from looking at LASCO data for CMEs, followed by an attempt to find where the CME comes from. In this case, see http://cdaw.gsfc.nasa.gov/movie/make_javamovie.php?img1=lasc2rdf&img2=goesx&stime=20160116_0600&etime=20160116_1030. STEREO EUVI data suggest that the origin was not on the backside. There was no clear filament eruption on the visible side. Expanding loops limbward of AR 12485 seem to be the only possibility to account for the CME. We see mild dimming above the active region, which may have been connected to a larger area than what it looked.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2016-01-19T05:53:40

2016-01-14T19:30:02 --> 2016-01-15T00:00:02

This is a slow filament eruption in a quiescent region and is seen to move in various directions in 304 A images. It has no X-ray flare signals, although a two-ribbon flare, spreading in time, is clearly seen in these images. At both ends of the ribbon, a twin dimming develops. This was predicted to be an Earth-directed eruption (https://twitter.com/halocme/status/687798333130338305), and the CME-associated shock indeed arrived late on January 18 (https://twitter.com/halocme/status/689198036434685952).

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2016-01-19T05:53:39

2016-01-14T19:30:02 --> 2016-01-15T00:00:02

This is a slow filament eruption in a quiescent region and is seen to move in various directions in 304 A images. It has no X-ray flare signals, although a two-ribbon flare, spreading in time, is clearly seen in these images. At both ends of the ribbon, a twin dimming develops. This was predicted to be an Earth-directed eruption (https://twitter.com/halocme/status/687798333130338305), and the CME-associated shock indeed arrived late on January 18 (https://twitter.com/halocme/status/689198036434685952).

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2016-01-19T05:53:38

2016-01-14T19:30:02 --> 2016-01-15T00:00:02

This is a slow filament eruption in a quiescent region and is seen to move in various directions in 304 A images. It has no X-ray flare signals, although a two-ribbon flare, spreading in time, is clearly seen in these images. At both ends of the ribbon, a twin dimming develops. This was predicted to be an Earth-directed eruption (https://twitter.com/halocme/status/687798333130338305), and the CME-associated shock indeed arrived late on January 18 (https://twitter.com/halocme/status/689198036434685952).

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by schryver, Submitted at 2016-01-13T20:32:28

2016-01-12T05:48:06 --> 2016-01-12T11:08:06

Eruption from a region of mixed-polarity enhanced network, apparently creating a temporary void in the coronal connections into long loops connecting to quiet Sun.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2016-01-07T05:56:15

2016-01-06T12:00:06 --> 2016-01-06T13:00:06

The initial part of an eruption is captured. EUVI-A images indicated that it was from AR 12473, now more than 40 degrees behind the limb. The eruption produced a bright partial halo CME with shock signatures, but unfortunately we did not see the details after the onset because of EVE FOV maneuver (13:15-16:00 UT)

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2016-01-06T05:49:06

2016-01-01T00:00:06 --> 2016-01-06T00:00:06

Many brightenings were seen inside the dark coronal hole, but this five-day movie does not readily indicate dynamic evolution of the coronal hole boundary. This coronal hole was likely responsible for the fast (>600 km/s) solar wind that started around 01 UT on 2016-01-06.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2016-01-03T19:13:20

2016-01-01T22:40:10 --> 2016-01-02T00:40:10

This was not a strong wave, which often resulted from impulsive lateral expansion of the coronal volume. But we see disturbances propagating in various directions including counterclockwise along the limb and toward south pole.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2016-01-03T19:02:28

2016-01-01T22:20:23 --> 2016-01-02T02:20:23

This is the only major eruption from AR 12473 since the one on 29 December 2015 (which caused a G2 storm on NYE). Big dimming was seen over the limb. The flare showed downflows. It was preceded by a C2.7 flare, which may have played a role in loosening up the strapping field. The eruption included one that went southeast, reminiscent of the minor eruptions at earlier times. The eruption resulted in a bright CME with shock signatures and was associated with a minor (S1 level) SEP event. See https://twitter.com/halocme/status/683197503504683008, https://twitter.com/halocme/status/683194474999119873 and https://twitter.com/cosmic_jet/status/683455470078525440.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2016-01-03T19:02:26

2016-01-01T22:20:23 --> 2016-01-02T02:20:23

This is the only major eruption from AR 12473 since the one on 29 December 2015 (which caused a G2 storm on NYE). Big dimming was seen over the limb. The flare showed downflows. It was preceded by a C2.7 flare, which may have played a role in loosening up the strapping field. The eruption included one that went southeast, reminiscent of the minor eruptions at earlier times. The eruption resulted in a bright CME with shock signatures and was associated with a minor (S1 level) SEP event. See https://twitter.com/halocme/status/683197503504683008, https://twitter.com/halocme/status/683194474999119873 and https://twitter.com/cosmic_jet/status/683455470078525440.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by weiliu, Submitted at 2015-12-30T02:15:03

2015-12-23T03:40:06 --> 2015-12-23T05:30:06

A large surge on west limb apparently follow the open field lines outlined by the 171 emission. There seems to be a typical fan-spine geometry.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2015-12-29T19:07:19

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.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2015-12-29T19:07:19

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.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2015-12-29T17:46:25

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.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2015-12-25T00:07:17

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.

Rating: 4.0 (0=lowest, 5=highest)         Num Ratings:1

Detected by halocme, Submitted at 2015-12-25T00:07:16

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.