01:31 UT WN West Bright and elongated ragged loop front. EIT 195 images show signatures of a backsided CME above the ENE limb (developing toward NW) starting at 01:13 UT. 04:54 UT E Limb Bright loop front. Faint and diffuse extensions to N and S can be seen by 05:08 UT. By 06:06 UT, the C2 occulting disk appears fully covered (by that time, the LE on E is already well past the outer edge of C2). Prominence material follows the outer front on ENE. Note that by 07:54 UT, a new bright loop-like front follows behind the trail of the prominence. The event is first seen in C3 at 05:18 UT as a very bright loop front on E, with faint and diffuse extensions to N and S. By 06:18 UT, the C3 occulting disk seems to be fully surrounded by these faint extensions (though they are very faint on the western hemisphere). The diffuse structures on west that made the C2 occulting disk to appear covered by 06:06 UT, are first seen in C3 by 07:42 UT on W and SW. The mean plane-of-sky speed of the LE of the outermost front at PA ~ 83 was ~ 1960 km/sec, showing practically no acceleration (based on C3 data). GOES reported an M3.7 X-ray flare on N11E90 between 04:33 - 05:30 UT with peak emission at 05:02 UT. The source region is still behind the limb and is apparently located in the position of the old NOAA AR 10786. EIT 195 images show the slow and gradual increase of a system of loops barely anchored behind the limb starting at around 03:48 UT, with a sudden brightening increase at 04:36 UT, just on the ENE limb. By 04:48 UT, the images show release of prominence material, jointly with a strong intensity disturbance all above the eastern limb. A slight intensity disturbance can be seen on the eastern part of the disk afterward. Post- plare loops can also be seen developing just above the limb. By 07:13 UT, another CME signature develops above the ENE Limb (also barely backsided). In summary, the event has therefore been determined as a strong limb event (barely backsided), with an associated shock that made the event to look like an asymmetric full halo event. The event was associated with an M3.7 X-ray flare on the apparently old location of the former NOAA AR 10786 (barely behind the ENE limb). The location of this active region makes the arrival of a CME- produced interplanetary disturbance to the Earth unlikely. 07:54 UT EN East In the trailing material of previous event, a new bright and ragged loop-like front can be seen. EIT 195 images show by 07:13 UT a CME signature developing above the ENE Limb (barely backsided). 11:06 UT EN East Small and bright ragged front in the southern part of the trailing material of previous event. Gusty outflow continues. GOES reported a C1.7 X-ray flare on N14E88 between 10:31 - 11:30 UT with peak emission at 10:55 UT. 15:00 - 17:00 UT No LASCO C2/C3 CME watch images. High Cadence C3 PBs subfield images for the Faraday Rotation Study with Cassini Campaign. 17:30 UT EN East Faint and ragged loop front already under way after gap. 22:30 UT E Limb Faint and elongated loop front preceding following important event.
00:30 UT E Limb Bright and ragged front immediately followed on ENE by a narrower and also bright ragged front. GOES reported: i) on previous day, a C4.5 X-ray flare on N06E89 between 22:39 - 23:15 UT with peak emission at 23:00 UT, and ii) today, an M1.0 X-ray flare on N07E89 between 00:01 - 00:54 UT with peak emission at 00:30 UT. 06:54 UT EN East Bright and relatively elongated ragged front. Twisted trailing material. GOES reported a C2.8 X-ray flare on N11E79 between 06:13 - 06:52 UT with peak emission at 06:52 UT. Time of the last C2 image under analyis: 12:30 UT.