Recent Events Reported by Observers

Detected by Wei Liu, Submitted at 2016-06-16T02:44:02

2016-05-24T21:37:35 --> 2016-05-24T21:48:36

Another small jet occurred on the eastern side of the leading spot of AR 12546, near the polarity inversion line. The top end of the jet was under the slit.

Detected by Wei Liu, Submitted at 2016-06-16T02:36:15

2016-05-24T22:02:38 --> 2016-05-24T22:28:41

Another small flare occurred on the SW side of the leading spot of AR 12546. It had multiple episodes of mild brightenings leading to the final peak of the intense flare peak.

Detected by Wei Liu, Submitted at 2016-06-16T02:30:57

2016-05-24T20:45:57 --> 2016-05-24T21:03:59

A second, small flare occurred in AR 12546 during the coordination with BBSO/HOP 304. Located to SW of the leading sunspot. The slit was not on the flare.

Detected by Wei Liu, Submitted at 2016-06-16T02:27:44

2016-05-24T17:02:13 --> 2016-05-24T17:21:12

A small two-ribbon flare occurred in AR 12546 during the coordination with BBSO/HOP 304. Located near the polarity inversion line to the west of the leading sunspot. The slit was mainly on the eastern flare ribbon. There was a second, much weaker episode of loop brightening near 17:14 UT, which occurred to the west of the main flare site.

Detected by Wei Liu, Submitted at 2016-06-16T02:19:37

2016-05-24T13:55:33 --> 2016-05-24T14:36:15

Mostly horizontal threads, showing dynamic flows.

Detected by Wei Liu, Submitted at 2016-06-16T02:12:27

2016-05-26T04:48:23 --> 2016-05-26T06:10:49

An active region prominence at the NE limb was captured in part in the FOV, exhibiting dynamic flows.

Detected by Wei Liu, Submitted at 2016-06-16T02:07:32

2016-05-25T23:16:47 --> 2016-05-25T23:48:25

Coronal rain (a bit high altitude) over AR 12546 at SW limb

Detected by Wei Liu, Submitted at 2016-06-16T02:03:41

2016-05-26T08:52:45 --> 2016-05-26T10:00:17

Brightenings in sigmoid loops in AR 12548 on the trailing edge, to the east of the leading sunspot.

Detected by Wei Liu, Submitted at 2016-06-16T01:54:28

2016-05-26T20:49:32 --> 2016-05-26T21:42:57

Coronal rain along low-lying loops in AR 12546 at SW limb, captured in this 400-step raster scan.

Detected by Wei Liu, Submitted at 2016-06-16T01:50:16

2016-05-27T04:37:45 --> 2016-05-27T06:33:34

AR prominence at NE limb showed wavy motions, similar to those reported by Okamoto et al. (2007) with Hinode/SOT seen in the Ca II H line. The vertical step in the off-limb portion of the image is an artifact possibly due to scattered light in the optics. It's low intensity, on the order of 1 DN, should not be a concern for science data.

Detected by Wei Liu, Submitted at 2016-06-16T01:43:20

2016-05-28T13:08:29 --> 2016-05-28T14:32:20

A prominence at SW limb showed a vertical structure, similar to the one reported earlier for the same day. This structure exhibited dynamic, wavy flows, and ascending motions of some material.

Detected by Wei Liu, Submitted at 2016-06-16T01:36:53

2016-05-29T06:12:35 --> 2016-05-29T06:58:02

A small-sized flare occurred in AR 12548 in a routine 400-step raster, but unfortunately after the slit passed the AR. The flare showed several ribbons in segments, and at least two episodes of brightenings.

Detected by Wei Liu, Submitted at 2016-06-15T20:15:44

2016-05-31T23:30:26 --> 2016-06-01T03:48:09

Prominence at NW limb showed circular flows and undulating/wavy motions (e.g., 01:15), amidst irregular flow patterns in the middle of the prominence volume.

Detected by Wei Liu, Submitted at 2016-06-15T20:09:03

2016-05-28T23:58:31 --> 2016-05-29T03:26:39

400-step raster thru a quiescent prominence in coronal cavity at NW limb. There were dynamic flows, especially the circular flows at the prominence apex, suggestive of helical field lines within a flux rope. Note the x-dimension appears to be squeezed, possibly due to asymmetric x,y binning.

Detected by Wei Liu, Submitted at 2016-06-15T20:00:46

2016-05-28T06:17:50 --> 2016-05-28T06:56:15

An active region prominence on SW limb had a vertical structure that was similar to vertical threads in quiescent prominence with meandering flows. At ~06:45, the top portion of this vertical structure was disconnected and rose upward, resembling the launch of a CME, but on a much smaller spatial scale. These were seen at 1400 \\AA, but 2796 \\AA\\ SJIs show the predominant horizontal threads as commonly seen in AR prominences. The vertical structure might have be a separate entity from the horizontal AR prominence, although they appear cospatial in LOS projection. Also note to far right hand side of the off-limb FOV - a dark, faint feature of inner-tube shape with a central vertical stick, which are on the order of 1/2-1 DN in intensity and possibly caused by scatter light in the optics. This primarily appear in 1400 and occasionally in 1330 SJI. Given the extremely low intensity of this artifact, it should not be a concern for science data.

Detected by Wei Liu, Submitted at 2016-06-15T19:41:16

2016-05-27T12:10:30 --> 2016-05-27T14:31:22

Dynamic flow patterns in this active region prominence at northeast limb. Most flows follow well defined loop-shaped paths, displaying some undulating motions - possibly resembling those Alfvenic waves seen with Hinode/SOT, e.g., by Okamoto et al. (2007 Sci). Note the turbulent-like flows at the apex of the main prominence.

Detected by Wei Liu, Submitted at 2016-06-15T19:33:26

2016-05-30T22:29:10 --> 2016-05-30T23:06:00

AR 12548 400-step scan revealed an AR prominence to the north and very sparse coronal rain to the south, with a low activity level.

Detected by Wei Liu, Submitted at 2016-06-15T19:28:10

2016-05-31T10:07:56 --> 2016-05-31T11:35:46

Coronal rain along loops in AR 12548 at NW limb. Note in 2796 SJI images, there was an active region prominence at the same location, with horizontal threads.

Detected by Wei Liu, Submitted at 2016-06-15T19:20:44

2016-05-26T16:23:33 --> 2016-05-26T16:52:38

B-class flare in the trailing edge of the sunspot in AR 12548 near polarity inversion line, with BBSO coordination. There were at least two episodes of brightenings, first around 16:32 and the second one near 16:47 UT. No clear ribbon motion. The western end of the faring loops were located within the sunspot.

Detected by Wei Liu, Submitted at 2016-06-15T18:52:44

2016-05-26T10:36:08 --> 2016-05-26T11:33:05

Loop brightenings and dynamic flows in the eastern portion (trailing edge) of AR 12548. This is right under the slit. However, the flaring-like activity in the northern portion of FOV was beyond slit coverage.