;;;this list is based on heterogeneous running difference movies ;;;from C1 observations ;;;wrunmovie,start=0,len=500,img_rebin=[768,640] Event Time PA AW Wavel Comments 1998/04/02 06:21:08 225 45 5302 extensive tongue-like dimming 1998/04/02 06:34:25 225 45 5302 extensive but weak dimming and brightening (?C2 CME at 06:43:13 UT, 277 km/s, AW 65) 1998/04/02 22:23:51 225 30 5302 small circular dimming and surroudning brightening 23:32:09 225 30 6390 small circular dimming and surroudning brightening (diff 18:19) 1998/04/03 00:03:34 225 30 5302 the dimming area persists 00:05:49 225 30 5309 a weak dimming area (diff 22:07 UT) 00:07:59 225 30 5297 a weak dimming area (diff 22:09 UT) 00:52:11 225 30 5302 the dimming area persists 01:57:56 225 30 5302 the same area keeps further dimming, not expanding 03:56:06 225 45 5302 the dimming area seems ejecting and diffuse brightening 04:10:28 225 45 5302 seems ejecting, weak diffuse brightening, no clear leading edge 04:12:43 225 45 5309 dimming in low corona, and brightening higher, no clear LE (diff 03:11) 05:25:51 225 45 5297 dimming at high corona at 2.5 Rs (diff 04:14 UT) 05:53:44 225 45 6378 dimming all the way from 1.1 to 2.5 Rs (diff 03:37 UT) (?with C2 CME at 04:23 UT, 482 km/s, and AW 72) (pre-eruption dimming persisting for a few hours) (rotation effect and physical dimming) (GOES no recognized flare, but data show a B7 bump, S03:35 UT,P04:00 UT) (C1 CME, show fuzzy ejection feature, but not clear LE) 1998/04/03 19:59:06 225 45 5302 elongated dimming to 2.0 Rs 20:01:20 225 45 5309 no any signature in offline 5309 A (diff 18:59 UT) 20:50:30 225 45 5302 weak blob brightening at 2.0 Rs (?with C2 CME at 20:12 UT, 521 km/s, AW 70) (no GOES flare, data show a B9 bump, peak at 19:20 UT, may not related) 1998/04/04 02:52:46 135 45 5302 a tongue-like dimming surrounded by diffuse beightning (diff 02:01 UT) 03:09:18 135 45 5302 brightening at the region of dimming seen in 5302A (diff 02:03 UT) 1998/04/04 05:39:12 225 45 5302 weak diffuse brightening extending up to 2.5 Rs 05:58:48 225 45 5302 the diffuse brightening seems moving out like a CME (?with slow C2 CME at 05:47 UT, 197 km/s and AW 60) (No GOES flare, though a A2 bump, start 05:25 UT and peak 05:30 UT) 1998/04/04 18:00:11 225 30 5302 tongue-like dimming sticking our from the limb 18:02:27 225 30 5309 no signature (diff 17:01 UT) 18:04:37 225 30 5297 very weak helmet-like brightening (diff 17:03 UT) 18:19:10 225 45 5302 extensive dimming and complex brightening (?with C2 CME at 18:13 UT, 402 km/s, AW 66) (GOES C2.2 flare, S18:19 UT, P18:25 UT) 1998/04/06 04:51:41 225 45 5302 semi-circular dimming close to the limb 04:53:56 225 45 5309 very weak brightening loop as if CME leading edge (diff 03:52 UT) 04:56:09 225 45 5297 semi-circular bright loop as the CME leading edge (diff 03:54 UT) 05:10:43 225 90 5302 extensive dimming and low-lying brightening 05:45:15 225 90 5302 semi-circular fat loop brightening in low corona (C2 CME at 05:04 UT, 878 km/s, AW 62) (GOES C8.4 flare, Start 04:53 UT and peak 05:06 UT) 1998/04/06 07:26:32 135 30 5302 semi-circular dimming and complex brightening 08:04:19 135 30 5302 complex brightening 08:06:36 135 30 5309 weak dimming and brightening (diff 07:09 UT) 08:08:47 135 30 5297 weak dimming and brightening (diff 07:11 UT) (C2 CME at 08:49 UT, 162 km/s, AW 67) (A case of small and slow CME suppressed by closed loops) (In C1, only a small southern part of active region arcade erupt) (In C2, a slow CME travelling along a thick streamer undisrupted) 1998/04/07 22:35:16 45 45 5302 a weak semi-circular loop and a weak brightness core 23:14:16 45 45 5302 the likely flux-rope structure moving out slowly 23:16:28 45 45 5309 no feature at all (diff 22:16 UT, 5309 offline not sensitive enough) 23:18:40 45 45 5297 no feature at all (diff 22:18 UT, 5297 offline not sensitive enough) 23:33:01 45 45 5302 the likely flux rope feature weaker but moving out 23:46L56 45 45 6376 semi-circular loop brightening and dimming core (diff 22:20 UT) 23:51:17 45 45 6382 patch brightening at the top of the feature (diff 21:53 UT) 1998/04/08 00:11:12 45 45 5302 semi-circular loop expanding fast than the bright core 00:49:48 45 45 5309 see the feature in 5309A offline (diff 20:52 UT) 00:58:46 45 45 5302 expanding of the feature 01:33:26 45 45 5302 expanding of the feature 01:50:02 45 45 6385 leaving behind a semi-circular dark core (diff 23:49 UT) 01:52:45 45 45 6382 leaving behind a semi-circular dark core (diff 23:51 UT) 00:58:46 45 45 5302 expanding of the flux-rope-like feafure 03:33:38 45 45 5302 the feature expanding to 2.5 Rs 03:50:22 45 45 5309 a dimming core close to the limb (diff 00:49 UT) 04:11:07 45 45 5302 expanding of the flux-rope-like feafure 04:17:48 45 45 6376 the leading loop extending C1 FOV, but bright core at 2.0 Rs (01:47) 05:53:58 45 45 5302 a bright core at 2.5 Rs (diff 02:46 UT) (C2 CME at 03:27 UT, 441 km/s, AW 44, acc. 15.2 m/s^2) (a typical gradual CME well observed in C1 and C2, slowly accel.) (can track both LE and core feafures, but weak and diffuse) (no GOES flare) 1998/04/08 16:04:32 315 30 6376 a narrow curved brighness strip up to 2.0 Rs, seems a filament 16:06:45 315 30 6385 no feature, maybe not enough sensitivity (diff 14:04 UT) 16:08:53 315 30 6382 no feature, maybe not enough sensitivity (diff 14:07 UT) 16:28:43 315 30 5302 no feature, maybe not the right temperature range 16:35:24 315 30 6376 a narrow curved brighness strip up to 2.0 Rs, a filament 18:27:09 315 30 6376 the lower half of the filament move southern, but upper part northern 18:29:52 315 45 5302 weak but extensive dimming 18:52:59 315 45 5302 weak but extensive dimming (C2 CME at 18:41 UT, 435 km/s, Aw 56, Acce. 8.8 m/s^2) (a case of a sticking-out filament eruption) (no C1 CME LE observed, unfortunately) 1998/04/08 19:36:47 90 45 5302 extensive semi-circular brightening 20:11:21 90 45 5302 entensive semi-circular brightening 20:27:17 90 45 6385 two thin bright straight strips, pushing away of overlying streamer (diff 18:29 UT, density feature, not seen in online 6376 A image) 20:49:15 90 45 5302 entensive semi-circular brightening, expanding 20:49:15 90 45 5302 semi-circular brightening loop at 2.0 Rs, straight strips at sides 21:29:58 90 45 5309 two bright straight strips at two flanks, streamer pushing over (C2 CME at 20:05 UT, 232 km/s, AW 17, acce. -2.0 m/s^2) (a case of small CME of active region pushing over through) (overlying streamers and closed arcades) 1998/04/09 06:06:36 45 30 6376 a small helmet-like dimming structure close to limb (diff 04:36 UT) 06:32:27 45 30 5302 a small tongue-like dimming 07:07:18 45 30 5309 elongated tongue-like dimming and brightenign in southern flank 08:02:21 45 30 6376 elongated tongue-like dimming and brightenign in two flanks 08:04:33 45 30 5309 elongated tongue-like dimming and bri. in southern flank (06:09 UT) 08:06:43 45 30 6382 elongated tongue-like dimming and bri. in southern flank (06:12 UT) (C2 CME at 06:44 UT, 773 km/s, AW 39) (No listed GOES flare, plot show a C1.0 bump, S06:00 UT,P06:20 UT) 1998/04/09 08:20:41 225 45 5302 a very weak dimming close to the limb 08:22:53 225 45 5309 a very weak fuzzy brightening close to the limb (diff 06:34 UT) 08:25:04 225 45 5297 a fuzzy brightness CME leadning edge appear (diff 06:36 UT) 08:27:20 225 45 6376 a semi-circular loop as CME leading edge at 2.0 Rs 08:41:21 225 45 5302 extensive dimming 08:57:58 225 45 5309 regional dimming and two bright flanks (C2 CME at 09:06 UT, 291 km/s, AW 64) (no listed GOES flare) (C1 CME, at least one good LE image) 1998/04/09 09:35:43 270 45 6385 a semi-circular bright loop appearing at the limb (diff 08:04 UT) 10:02:25 270 45 6382 a semi-circular brightness loop as CME leading edge (diff 08:06 UT) 10:41:12 270 45 5302 extensive semi-circular brightening 11:31:21 270 45 5302 extensive semi-circular brightening loop expanding (C2 CME at 10:35 UT, 221 km/s, AW 35) (no GOES flare listed, but a C1 bump, S09:50 UT and P10:15 UT) (C1 CME, at least 2 good images) 1998/04/10 01:43:09 90 45 5302 a blob of brightening structure at 2.0 Rs 01:46:09 90 45 5309 no apparent feature 02:06:08 90 45 5302 weak dimming in low corona 02:24:08 90 45 5302 weak semi-circular loop at low corona 03:06:07 90 45 5302 entensive weak dimming and localized brightening (C2 CME at 01:55 UT, 539 km/s, AW 67) (GOES C2.3 flare, start 02:01 UT and peak 02:15 UT) (no good C1 CME image) 1998/04/14 05:14:48 45 45 6382 a nice spherical dimming region of 1.5 Rs and bright rim (diff 23:52 UT) 06:06:07 45 90 5302 extensive dimming up to 3.0 Rs 06:06:16 45 45 5309 a nice spherical dimming region of 1.5 Rs (diff 01:12 UT) (C2 CME at 05:26 UT, 918 km/s, AW 91, Acce. 27.7 m/s^2) (no GOES flare listed, data show a B8 bump, S05:00UT, P06:00 UT) (a nice structured fast CME with a cavity) (unfortunetly, poor C1 cadence, CME leading edge not observed) 1998/04/15 08:24:08 350 30 5302 a small brightness stick right above the limb 08:43:13 350 45 6376 a semi-circular block of fragmented structure up to 2.0 Rs (04:46 UT) 08:45:21 350 45 6385 a semi-circular loop structure at 2.0 Rs (diff 04:48 UT) 08:47:26 350 45 6382 a semi-circular loop structure at 2.0 Rs (diff 04:50 UT) (C2 CME at 07:55 UT, 691 km/s, AW 49) (GOES C8.8 flare, start 07:37 UT and peak 07:46 UT) (or GOES C3.7 flare, start 08:01 UT and peak 08:12 UT) (see C1 CME structure in cool lines) 1998/04/15 21:24:07 270 45 5302 a nice half-spherical dimming structure up to 1.5 Rs 22:06:08 270 45 5302 slow expansion of the structure 22:24:08 270 45 5302 semi-circular loop at the rim of the structure 23:46:09 270 45 5309 semi-circular brightness loop across the equator (diff 19:46 UT) 1998/04/16 00:45:20 270 45 6385 semi-circular brightness loop across the equator (diff 20:46 UT) 00:45:20 270 45 6385 semi-circular brightness loop across the equator (diff 20:46 UT) 03:43:09 270 45 5302 semi-circular brightness loop across the equator (diff 01:43 UT) (a case of stable trans-equatorial large scale structure) 1998/04/17 03:06:11 270 45 5302 semi-circular dimming structure across the equator (?intermittent expansion of large scale coronal structure) 1998/04/17 04:46:40 90 45 6376 semi-circular loop at 2.0 Rs and internal complex structure 04:48:48 90 45 6385 irregular brightness in the internal area (diff 00:45 UT) 04:50:55 90 45 6382 irregular brightness in the internal area (diff 00:47 UT) (a case of large scale coronal structure standing: flux rope?) 1998/04/20 10:18:57 225 90 5302 extensive dimming up to 2.5 Rs 10:21:08 225 90 5309 extensive dimming up to 2.0 Rs (diff 08:19 UT) 10:23:20 225 90 5297 extensive dimming up to 2.0 Rs (diff 08:21 UT) 10:39:36 225 90 5302 extensive dimming and brightening 10:29:31 225 90 5302 extensive dimming and brightening 12:47:39 225 90 5302 extensive dimming up to 3.0 Rs (diff 08:50 UT) 12:50:39 225 90 5302 extensive dimming up to 3.0 Rs (diff 08:53 UT) 15:00:53 225 90 5300 extensive dimming up to 2.5 Rs (diff 05:26 UT) (C2 CME at 10:07 UT, 1863 km/s and AW 165) (GOES M1.4 flare, start 09:38 UT and peak 10:21 UT, S43W90)) (unfortunately, no C1 imaging during acceleration period, no LE) (a good case to study the dimming extention and size and mass loss) (a great solar energetic particle event) 1998/04/21 18:04:21 315 45 5302 a tongue-like dimming feature close to the limb 18:06:47 315 45 5309 a weak tongue-like dimming feature close to the limb 18:12:03 315 45 6376 a semi-circular dimming area surrounded by brightness 18:27:26 315 45 5302 the dimming region expanding and southern flank brightening 18:41:20 315 45 6376 semi-circular brightness loop as LE and internal cavity and bri. core 18:43:58 315 45 6385 diffuse brightness and internal cavity (diff 16:42 UT) 18:46:26 315 45 6382 diffuse brightness and internal cavity (diff 16:42 UT) 19:39:24 315 45 5302 low coronal dimming region and southern bright flank (C2 CME 19:03 UT, 527 km/s, Aw 62) (C2 and C1 images still contaminated from pervious particles) (No GOES flare, possibly a back-side CME) (C1 CME, see leading edge at at least one frame) 1998/04/23 04:08:07 90 45 5302 a nice semi-circular dimming to 1.5 Rs and loop top bri. (diff 02:08 UT) 04:11:07 90 45 5309 a nice semi-circular dimming to 1.5 Rs and bri. rim (diff 02:11 UT) 04:14:11 90 45 5302 weak semi-circular dimming 04:36:57 90 45 5302 a nice semi-circular dimming expanding 04:50:34 90 45 5302 a nice semi-circular dimming further expanding 05:14:07 90 90 5302 the semi-circular dimming seems expanding radially and laterly 05:16:19 90 90 5309 extensive weak dimming up to 2.0 Rs, no LE (diff 04:16 UT) 05:18:29 90 90 5297 extensive weak dimming up to 2.0 Rs, no LE (diff 04:16 UT) 05:33:08 90 90 5302 the semi-circular dimming seems expanding radially and laterly 05:53:08 90 180 5302 the region expanding laterally extensively, dimming and bri. 06:01:07 90 180 5302 complex dimming and brightening covering a large latitude range 06:14:43 90 180 5302 complex dimming and brightening covering a large latitude range 06:16:58 90 180 5309 complex dimming covering a large latitude range 06:19:07 90 180 5297 complex dimming covering a large latitude range 06:33:08 90 180 5302 complex dimming and brightening covering a large latitude range 08:08:09 90 180 5302 see a large dimming region up to 2.5 Rs (diff 04:08 UT) 08:11:08 90 180 5309 see a large dimming region up to 2.5 Rs (diff 04:11 UT) (C2 CME 05:27 UT, 1618 km/s, AW 360, acce. 18.5 m/s^2) (GOES X1.2 flare, start 05:35 Ut and peak 05:55 UT, AR 8210, S16E90) (GOES plot show flux start to slowly increase at 04:00 UT) (which coincide with the expansion of semi-circular feature) (C1 CME, good, see pre-euption slow initiation phase for 90m minutes) 1998/04/25 18:25:45 90 45 5302 tongue-like dimming and surrounding fuzzy brightening 18:44:02 90 45 5302 extensive weak dimming and brightening 18:57:41 90 90 5302 weak brightening up to 3.0 Rs (diff 17:00 UT) (C2 CME at 18:39 UT, 324 km/s, AW 22) (GOES flare C1.5, start 17:58 UT and peak 18:06 UT, ragged profile) (no clear C1 CME leading edge) (CME go through overlying streamer structure in C2) 21:49:15 90 45 5302 weak semi-circular dimming and top loop 22:02:52 90 45 5302 expanding of the structure 22:27:44 90 45 5309 very weak semi-circular dimming up to 1.5 Rs 23:43:10 90 45 5302 a bright blob intruding into the large semi-circular structure 1998/04/26 00:01:16 90 45 6382 a regional dimming and two bright flanks (diff 18:03 UT) 00:55:50 90 45 5302 fuzzy brightening up to 3.0 Rs and blob brightening in the north (diff 21:04 UT) (seems continuous weak CME activity following the CME at 18:39 UT) (C2: no recognized CME, but continuous outflow along the streamer) (EIT: see continous outflow as the region gradually becomes dimmer) (a case of continuous outflow along the streamer in C2, but not major CME) 1998/04/29 16:10:08 X X 5302 no feature (GEOS flare already started at 16:06 UT, source close to disk center) 16:33:11 45 45 5302 a weak fan-like dimming close to the limb 16:46:55 45 180 5302 extensive brightening up to 3.0 Rs and intrenal regional dimming (diff 14:49 UT) 16:49:57 45 180 5309 extensive brightening (diff 14:53 UT) 17:10:41 45 90 5302 extensive dimming 17:33:08 45 90 5302 extensive dimming and brightening 18:49:54 45 90 5309 extensive dimming up to 3.0 Rs (diff 16:49 UT) (C2 CME at 16:58 UT, 1374 km/s and AW 360, acce. -44.8 m/s^2) (GOES M6.8 flare, start 16:06 UT and peak at 16:37 UT, AR 8210 at S18E20) (CME started at southern hemisphere, but heading toward north, guided by B filed) (C1 CME only see later structure, features in initiation phase is blocked)