Recent Events Reported by Observers
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Detected by halocme, Submitted at 2013-03-22T07:27:26
2013-03-21T11:50:23 --> 2013-03-21T12:31:11
Mass is ejected in a narrow channel, but the trajectory is not quite radial, probably outlining the coronal magnetic field. At 211 A and 171 A, the adjacent corona is seen to respond.
Detected by halocme, Submitted at 2013-03-22T07:14:28
2013-03-21T02:40:11 --> 2013-03-21T03:49:47
This is a diffuse filament eruption seen only in 304 A channel without visible effects in other channels.
Detected by halocme, Submitted at 2013-03-22T07:00:03
2013-03-21T07:30:35 --> 2013-03-21T10:00:35
Snapshots of this eruption around 08:20 UT are reminiscent of a three-part structure, but the CME that appears shortly after is narrow and spiky. This may be related to the motion being more horizontal than radial.
Detected by halocme, Submitted at 2013-03-22T06:49:28
2013-03-20T15:15:35 --> 2013-03-20T16:45:35
This eruption is seen mostly at 304 A with the background closed corona at 211 A and 171 A staying much the same (no eruptive motions, no dimming). This morphology may have to do with the appearance of the CME, which is more spiky than loop-like.
Detected by halocme, Submitted at 2013-03-22T06:39:00
2013-03-20T12:00:03 --> 2013-03-20T16:00:03
This eruption of closed loop system seems to be triggered by the activation of a prominence that forms the lower part of the northern leg. Expected a major CME, which was not the case.
Detected by halocme, Submitted at 2013-03-22T06:27:34
2013-03-20T13:50:23 --> 2013-03-20T14:59:59
A prominence seems to stick out from behind the limb. This upward motion is followed by a horizontal flow in the northern part. These are non-eruptive and may be just snapshots of dynamics in the same prominence system.
Detected by halocme, Submitted at 2013-03-22T05:53:16
2013-03-21T21:30:35 --> 2013-03-22T00:00:35
The flare appears to be closely related with the eruption of a prominence north of the flare region (encircled). During this prominence eruption (21:38-21:48 UT), the closed loops over the flare center started to rise, and the apparent speed increased from about 50 km/s around 21:46 UT to about 180 km/s around 21:58 UT. A bright CME appeared at 22:36 UT in LASCO C2 data, but its development is not yet known at this moment.
Detected by halocme, Submitted at 2013-03-20T21:29:53
2013-03-19T23:00:03 --> 2013-03-20T01:00:03
Following the first one that contains bright ejecta, there seem to be two more episodes of outflow in the same path.
Detected by anny, Submitted at 2013-03-20T18:56:17
2013-03-18T17:12:03 --> 2013-03-18T20:36:03
A massive bubble eruption on the SE limb, with a prominent outline in 171A. In 304A, little to nothing shows up.
Detected by halocme, Submitted at 2013-03-20T17:09:28
2013-03-20T00:20:24 --> 2013-03-20T03:00:00
This is another example of unsuccessful eruption. The associated C5.5 flare stands out in the GOES X-ray lightcurves. The event may have intrinsically interesting aspects such as occulted foot-points and funny-shaped post-flare loops, but it lacks broader impact on large-scale structures -- sorry this sounds like NSF.
Detected by halocme, Submitted at 2013-03-20T06:00:26
2013-03-19T23:30:35 --> 2013-03-20T01:30:35
This example may give a disk view of an unsuccessful eruption. The eruption appears to hit the adjacent and overlying structures, but there is no appreciable heating, judging from the lack of signatures in 94 A images.
Detected by halocme, Submitted at 2013-03-20T05:34:19
2013-03-19T13:20:23 --> 2013-03-19T16:20:23
Although this eruption appers spectacular, it seems to affect a relatively small coronal volume in the north. A possible secondary effect may be the brightening of the region to the west (encircled.)
Detected by halocme, Submitted at 2013-03-20T05:21:57
2013-03-19T07:35:23 --> 2013-03-19T08:21:23
The eruption accompanies dimming (and therefore a CME). The absence of post-flare loops and moving prominences indicates that the source region was considerably occulted.
Detected by anny, Submitted at 2013-03-20T02:11:43
2013-03-17T14:08:03 --> 2013-03-17T22:32:03
A 211 view on the post-eruption arcade - a close-up of the event annotated earlier.
Detected by anny, Submitted at 2013-03-20T02:08:44
2013-03-17T18:52:03 --> 2013-03-17T19:58:03
One more filament eruption today. This one is much fainter and smaller than the previous ones.
Detected by anny, Submitted at 2013-03-20T02:06:40
2013-03-17T16:06:03 --> 2013-03-17T19:58:03
A large filament eruption and a spectacular post-eruption arcade.
Detected by anny, Submitted at 2013-03-20T02:03:32
2013-03-17T12:50:03 --> 2013-03-17T17:14:03
Wait a moment... didn't this thing erupt yesterday? The new eruption is much fainter but comparable in size to the previous one and seems to originate from the same location at the surface.
Detected by anny, Submitted at 2013-03-20T01:58:34
2013-03-17T11:18:03 --> 2013-03-17T14:04:03
A small filament eruption on the S limb.
Detected by anny, Submitted at 2013-03-20T01:53:22
2013-03-17T00:00:03 --> 2013-03-17T15:54:03
This filament, which sits at the N limb, somewhat resembless a Loch Ness creature. The top portion (the "head") presumably gets ejected during its evolution.
Detected by anny, Submitted at 2013-03-20T01:34:34
2013-03-16T13:45:03 --> 2013-03-16T14:11:03
This is another aspect of the previously annotated massive filament eruption. Note how when the flux rope lifts, several "strings" connecting the middle of the flux rope with the lower boundary stretch up and eventually tear apart. The endpoints of these "strings", both on the photospheric side, and on the flux rope's side, brighten up. The result is two bright ribbons, on the surface and along the flux rope (the latter is less distinct). These two ribbons together in form a semicircle-like shape in the plane of sky, almost completely closed. Both footpoint brightening and the filament's edge brightening are of course not unusual, especially for the event of this magnitude. It is how they both show up and form a nice, distinct, almost closed ring in the plane of sky, that I find worth annotating.
