Preliminary 1997 SOHO LASCO Coronal Mass Ejection List (Revised 31-Dec-1997 -- CSt) N.B. This is a working version of a catalogue of probable coronal mass ejections detected in white light observations of the LASCO coronagraphs. This list is maintained at the SOHO Experimenters' Operations Facility, and it is based on an examination of only quick-look data, which represents a subset of the final LASCO dataset. Questions about this list should be directed to Russ Howard at NRL (howard@cronus.nrl.navy.mil) or to Chris St.Cyr of NRL/CPI (cst@sdac.nascom.nasa.gov). Date(s) UT Location Comment 01-Jan-1997 11:30 E Material along streamer. 02-Jan-1997 19:00 E Faint slanted front? or V-shape? 05-Jan-1997 05:21 E Multiple concentric loops with V's. 06-Jan-1997 17:34 S+ Partial? halo over South pole. Ground and WIND Type IIs. 07-Jan-1997 03:50 E Faint slanted front? 07-Jan-1997 17:45 NE Rapid expansion of previously slow streamer blowout. 10-Jan-1997 10:04 SE Narrow loop. 12-Jan-1997 12:30 NE Irregular front. 12-Jan-1997 17:07 SW Linear feature ejected? 14-Jan-1997 to 16-Jan-1997 Data Gap for Orbit Trim and Momentum Management 18-Jan-1997 02:30 SW Structured loops w/large disconn? 20-Jan-1997 09:31 NW Ragged filled front. 22-Jan-1997 14:30 SE Large disconnected bubble? 23-Jan-1997 07:30 SE Several small irregular shapes (EIT 195). 23-Jan-1997 12:30 W Small V-shape? 23-Jan-1997 15:20 NW Polar plume ejection. 24-Jan-1997 05:30 E Rising helmet, structured loops late. Flat edge and V follow. 26-Jan-1997 03:30 SW Small ejection. 01-Feb-1997 05:30 NE Rising loops erupt. V after. 02-Feb-1997 06:30 SE Material ejected. 02-Feb-1997 09:30 SW Small bubble; dark V-shape. 03-Feb-1997 18:18 W Classic 3-part following streamer expansion. 04-Feb-1997 18:10 SE With EIT 195 prominence. 05-Feb-1997 05:30 SW Small faint loop. 07-Feb-1997 02:30 SW+ Possible halo w/EIT. 08-Feb-1997 00:30 NE Polar jet. 08-Feb-1997 19:30 NW Multiple? polar jets. 11-Feb-1997 22:55 NW Faint loops rising (EIT too). 12-Feb-1997 08:55 SW Polar jet. 12-Feb-1997 15:55 SSW Polar jet. 14-Feb-1997 all day W Expanding loops? w/core at 06:30. 14-Feb-1997 19:30 NW Polar jet. 20-Feb-1997 early NW Faint curved front (EIT 284 event). 23-Feb-1997 00:30 SW w/EIT 304 backside S pole event? 23-Feb-1997 02:55 NE w/EIT 304 AR EPL & LDE. 25-Feb-1997 ~15:00 W Very faint loop w/core? 27-Feb-1997 10:55 NE Streamer separates into narrow loop. 01-Mar-1997 ~15:00 E Faint front? 02-Mar-1997 07:35 SW Narrow feature ejected? 03-Mar-1997 days E Rising loops show faint eruption. Quasi-continuous ejections for 3-4 days. 05-Mar-1997 22:55 NW Small fan (polar jet?). 08-Mar-1997 08:30 NW Polar jet. 09-Mar-1997 04:55 NE Loop (with extension to West). (Apparently backside. No NOAA tag to LDE). 11-Mar-1997 ~11:00 NNE Mother-of-all polar jets? (C2/C3) EIT 195 polar plume ejected? 12-Mar-1997 12:30 W Amorphous ejection w/later V-blob. 13-Mar-1997 03:13 NE Polar jet. 15-Mar-1997 15:55 W Puffs and front precede rising loops. 17-Mar-1997 02:30 SW 90 deg loop with EIT coverage. Material flows out for several hours. 18-Mar-1997 16:00 --- Close LASCO doors prior to thruster firings. Re-open 19-March ~21:00. 20-Mar-1997 all day --- No C2/C3 observations during roll. 22-Mar-1997 07:38 SW Very faint ejection. 23-Mar-1997 03:29 SE Polar jet? Or faint event? 23-Mar-1997 16:23 W Rising loops, followed by 180 degree halo event on 24-Mar-1997. 25-Mar-1997 23:30 NE EIT 195 event precedes rising loops. 26-Mar-1997 06:30 W Puff? Or V-shape? 27-Mar-1997 05:30 E Straight front w/trailing V. 27-Mar-1997 14:30 W Very faint cloud? 28-Mar-1997 05:30 NW Rising loops? 28-Mar-1997 18:17 SE Loop w/trailing core. 30-Mar-1997 09:35 NW Puff. 31-Mar-1997 05:31 W Irregular front. 01-Apr-1996 06:22 E Faint, irregular front. 01-Apr-1997 15:40 NE Structured loop w/195 M-class GOES flare; West limb too? 02-Apr-1997 07:17 E Very faint loop w/late structure. 04-Apr-1997 06:02 NW Rising loops w/195 filament. Concave-out late stages. 04-Apr-1997 19:28 E Small loop? 05-Apr-1997 11:26 NW Polar jet. 07-Apr-1997 02:51 NW+ Begins ragged, loop emerges; also in South and East? 07-Apr-1997 14:27 360 True halo event w/195 AR 8027? C8 GOES event. 09-Apr-1997 12:06 SW+W Very bright prom? material. 11-Apr-1997 ~01:13 E Rising loops yield concave-out bright structures at 03:21. 13-Apr-1997 17:04 W C2/C3 event in progress after doors opened Noticeable concave-outward trails. 14-Apr-1997 00:47 W Material leads concentric loops 14-Apr-1997 14:47 E Rising loops. 14-Apr-1997 17:14 SW Non-radial bright material. Second ejection at 21:03. 16-Apr-1997 01:34 W Non-radial bright material. 16-Apr-1997 ~06:00 E Faint, wide intersecting loops. Partial halo? Rising loops began previous day. 16-Apr-1997 12:30 W Small ejection? 20-Apr-1997 19:45 W Bright non-radial material. 22-Apr-1997 14:55 W Material ejected around rising loops. 23-Apr-1997 00:30 NE Structured blowout w/late V's. 24-Apr-1997 16:04 E Bright puff or small CME? (follows sequence of earlier puffs) 26-Apr-1997 14:55 W Small irregular shape ejected? 27-Apr-1997 00:31 W+ Bright irregular loop. >180 deg. 27-Apr-1997 08:35 W+ Second fainter event. A halo? 27-Apr-1997 14:50 W+ Third fainter event!? YA halo? 30-Apr-1997 04:50 E Bright structured loop. 01-May-1997 all day W Slowly rising loops with core erupt. Continues with much structure on 02-May. 02-May-1997 01:30 NE Irregular front w/mega-disconnection. Began with faint loops on 01-May. 05-May-1997 05:30 E Rising loops began 23:30 on 04-May. Erupts 05-May w/corkscrew structured core. V-trails. FeXIV event. 07-May-1997 10:26 W Rising loops become 3-part; Concave-outward. 195,C1,UVCS 11-May-1997 06:30 W Faint material. No front. 12-May-1997 07:35 Halo Nice 195 Moreton wave. 360 in C2. Ground and WIND Type IIs. 13-May-1997 04:30 E Very faint front in C2. 14-May-1997 >18:00 NW Nice 195/FeXIV event. UVCS data taken. Very unspectacular in C2/C3. 15-May-1997 16:30 S Polar jet. 15-May-1997 20:31 W Expanding loops with 195 AR. 16-May-1997 12:45 NW FeXIV and EIT, fast in C2/C3. 17-May-1997 02:41 E Irregular shape. 17-May-1997 11:22 E Second irregular ejection. 18-May-1997 14:55 E Very faint -- is this a CME? 18-May-1997 23:33 E Complex structure in rising loops. 21-May-1997 21:00 W+ Brightest in W, but possible halo. Unusual shape in East. M1 flare near disk center (and NW?) in 195. Ground and WIND Type II. 22-May-1997 19:30 SE Polar crown eruption with 304/195. 23-May-1997 21:21 W Irregular front w/195 AR B5 flare. 24-May-1997 11:30 SE Faint irregular material. 25-May-1997 14:48 E Fast front. 25-May-1997 23:52 E Very irregular. 26-May-1997 02:45 W YA irregular. Part of previous? 26-May-1997 20:22 NW Irregular front. 27-May-1997 10:15 W C2 loop unfolds as wave? 27-May-1997 13:31 E Part of W event? Part of MLSO report? 29-May-1997 01:30 NE Small blob. (But bigger than puff.) 29-May-1997 18:44 NW Linear brightening. 30-May-1997 00:30 SE Linear brightening is southerm edge of larger event. 31-May-1997 <19:39 W 304 EPL during data gap. Nice rising loops in C2. 01-Jun-1997 07:30 E Filled front with trailing V. 02-Jun-1997 06:30 SE Faint rising loops under pylons. Blob at equator 12:38. Pointed loop in South on 03-June. Something faint in NW? Is this a slow halo on 04-June? 03-Jun-1997 21:01 E Very faint amorphous front. 05-Jun-1997 22:55 W Bright front at NW of fainter material. 06-Jun-1997 18:23 SE Very faint loop? 07-Jun-1997 00:30 NE Fast spit of material. 07-Jun-1997 23:31 E Irregular material. 08-Jun-1997 03:30 W Irregular material precedes slow loops. 09-Jun-1997 20:30 W Non-radial motion of material. 13-Jun-1997 03:30 W Borderline CME. Amorphous, non-radial. 16-Jun-1997 20:31 W 3-part with V; 195, 304 EPL. More material at 18:48 on 17-June. 16-Jun-1997 04:30 E Very faint front, expands to North. Also EIT 195 in NE. 18-Jun-1997 04:30 W Amorphous bright material. 18-Jun-1997 23:31 E Faint concentric loops. Wide. Concave-outward at end. 19-Jun-1997 09:31 SE Strange polar jet? 20-Jun-1997 07:30 E Bright ray before bright loop. 21-Jun-1997 12:30 SW Material along southern edge of streamer. 22-Jun-1997 08:28 E Slowly rising loops erupt with bright material 24 hours later. 24-Jun-1997 10:30 NW Material along north edge of streamer. 26-Jun-1997 11:31 NW Very faint front; earlier narrow streamer brightening in NNW. 27-Jun-1997 06:10 SE Narrow material. 29-Jun-1997 all day E+ Rising loops in SE, expanding helmet erupts ~18:10 w/concave-out trailing. Adjacent/overlapping(?) concentric loop system in NE also. (2 events?) 30-Jun-1997 00:30 W Bright irregular 3-part. Nice loop in FeXIV. 01-Jul-1997 17:30 SW Irregularly-shaped material. 02-Jul-1997 15:52 NE Faint, rising loops erupt. (off limb?) 04-Jul-1997 03:22 NW Faint irregular material. 05-Jul-1997 10:13 NW Multi-part event: Bright irregular material, followed by structured bubble, ending late with larger rising loops. 06-Jul-1997 04:30 SE More rising loops. 06-Jul-1997 13:30 NW Another structured loop. 08-Jul-1997 16:09 W Rising loops? Continues next day? 10-Jul-1997 08:28? SW Faint material disrupts streamer. 11-Jul-1997 01:30 E Bright V, faint NE loop, then bright material South of equator. 12-Jul-1997 ~10:00 W Early material; much structure later. Concave out. High-rate sequence. 14-Jul-1997 08:51 NE Loop emerges, much structure; with later loop early on 15-July. 15-Jul-1997 03:34 E Faint narrow 3-part. 16-Jul-1997 13:30 W Small bright ejections. 16-Jul-1997 16:31 NE Very faint rising concentric loops. 19-Jul-1997 22:47 NW Very faint rising concentric loops. 21-Jul-1997 03:02 E Prominent puff? 22-Jul-1997 08:57 SW Nice bubble. 23-Jul-1997 12:20 NW Irregular material. 24-Jul-1997 04:30 NW Concentric loops and equatorial jet. 24-Jul-1997 15:00 E Slow rising loops erupt with concave-out trailing. 25-Jul-1997 07:30 W Rising loops erupt with irregular material. 25-Jul-1997 21:01 W Structured loops. 30-Jul-1997 04:45 W+ West limb event expands into partial halo (>200 degrees). 30-Jul-1997 19:32 SE Very bright material in C2/C3. EIT 304 material too. 02-Aug-1997 16:55 NE Faint material ejected. 05-Aug-1997 12:20 E Rising loops? 07-Aug-1997 03:29? W Amorphous material. 07-Aug-1997 13:44 N Faint, slow, high latitude. Multiple overlapping loops. 08-Aug-1997 07:53 E Very bright irregular front. EIT 195 CME Watch. 08-Aug-1997 17:23 E Very bright material w/trailing. 09-Aug-1997 22:43 E Large concentric loops. Trailing concave outward. 10-Aug-1997 06:56 SW Rising loops? 11-Aug-1997 23:35 NE Front stalls, bright knot trails. 12-Aug-1997 12:27 SE Ragged front, trailing loops. 13-Aug-1997 01:13 W Loop w/structured core. 14-Aug-1997 16:23 E Faint, amorphous front. 17-Aug-1997 all day W Rising loops. (previous day?) 20-Aug-1997 ~12:00 NE Faint rising loop system 21-Aug-1997 01:46 W Bright material. 22-Aug-1997 06:45 E Bright loop. 23-Aug-1997 23:15 NW Material moves non-radially. EIT and UVCS event. During Comet SOHO-25. 25-Aug-1997 18:08 E Amorphous front. 26-Aug-1997 15:47 W EIT monster 304 prom. Nice 195 coverage. UVCS event. Also East limb? 27-Aug-1997 11:35 NE Loop system rising from previous day finally erupts with concave-out. 28-Aug-1997 16:09 SE Nice 195 and FeXIV loop expelled. 29-Aug-1997 05:29 SW Rising loops? Big deflection. 30-Aug-1997 01:30 halo Starts in East. Surrounds C2 disk. 31-Aug-1997 23:00 LASCO Doors Closed for Momentum Management until ~18:00 02-Sep-1997 03-Sep-1997 Mostly rolled calibration data taken. All LASCO doors closed ~20:00 for station-keeping. 05-Sep-1997 <23:44 SE In progress when observations resumed. 08-Sep-1997 02:55 SW Faint event? ** The following week is remarkable in terms of almost constant CME(s). 09-Sep-1997 00:29 SW+ Faint rising loops become halo? 09-Sep-1997 20:06 NW Bright structured loop w/trailing concave outward features. 10-Sep-1997 all day S An immense deflection (>100 degrees) or rotation. 13-Sep-1997 16:25 SW Amorphous bright material. 13-Sep-1997 11:33 E Material. 14-Sep-1997 00:57 SE + NW Simultaneous ejections? NW had rising loops for several hours. 16-Sep-1997 03:38 E Much structured material (in loop?). Concave-outward trails. 17-Sep-1997 11:34 W+ 195 NW limb flare/EPL at ~12:00. C2 spreads to North and South, almost 180 degrees. Extended 195 arcade in North follows. 18-Sep-1997 06:35 NW Bright, narrow material w/concave-out. 18-Sep-1997 18:03 W Rising loops w/several distinct ejections. 19-Sep-1997 early W Ejections continue w/concave-outward. 19-Sep-1997 18:03 SE Faint narrow ejection? 20-Sep-1997 00:44 SW Loops? And material along streamer. 20-Sep-1997 10:20 W Bright structured loop w/concave-outward. New material at ~20:00? 22-Sep-1997 09:00 NE Very faint material precedes bright loop at 12:00. 23-Sep-1997 23:48 SE New material (after data gap?) followed by V-shape in NE? And narrow loop in SE? And material in West? 27-Sep-1997 05:03 NE Narrow material followed by loop with structured, concave-out core. 27-Sep-1997 13:38 W Slowly rising loops ejected later in day with concave-out structure. 28-Sep-1997 01:08 E+ Faint concentric loops grow into >200 degree wide halo event. Also 195 and h-alpha reports. 28-Sep-1997 08:59 NE Non-radial material with structured loop following. Very bright loop at 14:50 flattens/deforms noticeably. Continues next day with concave-out? 28-Sep-1997 15:50 W Appears during event in East. Bright structured intersecting loops. 29-Sep-1997 10:18 NE Faint loop deforms? Followed by bright structured loop at 18:30 that also flattens. 01-Oct-1997 01:29 W Rising loops ejected in bright structured front w/concave-outward trailing. 195 event. 01-Oct-1997 16:27 E Bright knot followed by other ejections. 02-Oct-1997 10:53 E Faint vertical front. 03-Oct-1997 18:00 NE Nice loops w/concave-out bright core. 05-Oct-1997 >08:00 NW Clear expulsion of bubble in 195 and FeXIV, yet insignificant in C2/C3. 05-Oct-1997 16:12 SE+ Faint halo? from 195 AR. Also NW EIT? Halo deforms in C2. 06-Oct-1997 10:31 W Very bright loop(s) w/structure. 06-Oct-1997 16:22 SE+ Loop with interior structure. Becomes partial halo. 07-Oct-1997 13:30 SW+ Very fast, very bright front. 07-Oct-1997 18:23 W Very bright loop w/structure following. Large concave outward. "Twisting?" feature in NW late 2x. 09-Oct-1997 12:52 E Material appears in NE and moves non-radially southward. 10-Oct-1997 >01:29 W Very faint rising loops? Mega concave-outward feature on 11-Oct. 10-Oct-1997 05:20 E Front appears. W limb event brightens. 11-Oct-1997 10:28 E Bright front follows 195 flare/wave. 12-Oct-1997 05:35 W Bright material first in NW, then in SW. 13-Oct-1997 11:11 W Structured intersecting loops w/195 DSF (SW) and AR (NW). 16-Oct-1997 23:53 W Bright loop (after data gap?). 19-Oct-1997 04:42 SE Faint loop precedes brighter material. 19-Oct-1997 ~15:00 E Very bright structured material follows rising loops. 20-Oct-1997 04:33 NW Linear non-radial jet precedes faint rising loops. 21-Oct-1997 01:27 SE 3-part deforms, w/concave-out trailing. 21-Oct-1997 18:03 halo Brightest in SE. 195 wave. 23-Oct-1997 13:58 halo Brightest in West. 195 DSF. 24-Oct-1997 21:48 E Rising loops. 26-Oct-1997 01:02 NE Non-radial fan with curve. 26-Oct-1997 03:10 W Very faint front. 26-Oct-1997 17:05 SE Streamer bulges? 27-Oct-1997 12:29 NW Narrow rising loops. 28-Oct-1997 all day SE Streamer slowly expands, erupts after NE event. 29-Oct-1997 01:29 NE Irregular material. 29-Oct-1997 18:21 E Bright loop, slowly rising loops finally erupt late on 30-Oct. Mega concave-outward V on 31-Oct. 31-Oct-1997 08:02 SW Structured loop. 195 DSF+. 01-Nov-1997 19:29 W Loop/core with much structure. Concave-outward trailing. 02-Nov-1997 16:36 SW Extremely faint series of slow loops. (Is this a CME or an anomaly?) 03-Nov-1997 05:28 SW Faint loop with other brighter material. 03-Nov-1997 11:11 W+ Partial halo w/flare from AR8100. 04-Nov-1997 01:29 W Another bright front appears in C2. 04-Nov-1997 03:37 SE Very bright material (195 EPL). 04-Nov-1997 06:10 W+ Structured halo event with X-flare. 04-Nov-1997 16:36 SW Another ejection 05-Nov-1997 ~00:18 W Bright rising loops erupt. 195 blob behind limb? 05-Nov-1997 all day W Several bright fronts appear during earlier event. 06-Nov-1997 >13:00 W Bright, fast, wide CME following X9 proton flare from AR8100. 07-Nov-1997 00:43 W Small bright loop; falls apart. 07-Nov-1997 14:07 W Small ejection. 08-Nov-1997 01:03 W Small ejection. 08-Nov-1997 08:59 W Another narrow, but brighter front. 08-Nov-1997 11:55 NW Narrow spike. 09-Nov-1997 00:14 W Rising loops with unusually-shaped trailing material. 10-Nov-1997 16:13 NW Several narrow ugly ejections. 11-Nov-1997 17:00 NE+ 3-part w/internal structure. Partial halo, spanning ~180 degrees. Nothing obvious in EIT. 13-Nov-1997 22:41 W+ Bright, filled partial halo. 14-Nov-1997 02:15 E New bright deformed front appears. 14-Nov-1997 10:52 E Thick bright structured loop. 14-Nov-1997 13:36 W+ Second partial halo, structured. 15-Nov-1997 15:27 W Rising loops w/concave-outward. 15-Nov-1997 23:27 NE Bright loop. 17-Nov-1997 08:27 E+ Full halo superimposed on loop. Halo brightest in NE,SW,NW. 17-Nov-1997 23:06 NW Rising loops before; EIT ejection. Much concave-out structure. 18-Nov-1997 08:27 NE Nice 3-part. Concave-out trails. 18-Nov-1997 23:06 SE Faint, non-radial fan of material. 19-Nov-1997 03:27 W+ Rising loops, but possible partial halo before observations end at 14:15 before ESR. 19-Nov-1997 14:30 LASCO/EIT off due to ESR. EIT observations resume 1997.11.20 ~07:00. LASCO resumes observations 1997.11.21 ~18:00. 22-Nov-1997 16:30 SE Bright, structured ejection. 23-Nov-1997 05:43 SW Rising loops? Material ejected. 23-Nov-1997 07:38 NE Jet of material. 23-Nov-1997 17:04 NE Thicker, brighter jet. 24-Nov-1997 13:37 NW Non-radial jet. 24-Nov-1997 15:06 NE Another non-radial jet. 24-Nov-1997 18:36 SE Rising loops begin. 25-Nov-1997 03:55 NE Very bright jet. C1 H-alpha. 25-Nov-1997 19:53 NE Very bright jet; expands South. 26-Nov-1997 00:27 E Front falls apart. More material in NE at 03:27. 26-Nov-1997 11:55 NE Bright structured front deflects equatorward. More material later. 27-Nov-1997 11:55 NE Bright asymmetric material. (Yes, same time as previous day.) 27-Nov-1997 13:56 E Bright structured loop. X2 flare from AR8113 (N17E63). Second loop system in NE. 28-Nov-1997 13:55 W New material around streamer? 28-Nov-1997 23:00 Close all LASCO doors prior to momentum mgnt. Begin EIT CCD bakeout 01-Dec-1997 16:00 Open C2/C3 doors and resume synoptic. 01-Dec-1997 <16:00 E Event already out of C2 field. 01-Dec-1997 19:08 NE Bright non-radial jet. 02-Dec-1997 22:27 E Structured loop w/concave-out trailing. 05-Dec-1997 <12:27 W Bright structured loop w/concave-out feature(s) trailing. 06-Dec-1997 10:27 NW+ Partial halo w/structure. Mostly NW, but concentric loops extend ~180 deg. Several concave-outward trail. 07-Dec-1997 00:55 SW New bright material during partial halo. EIT south polar crown filament event. 09-Dec-1997 12:27 SW Streamer swells; could be material in NW. 10-Dec-1997 18:38 NW Beginning of slow rising structured loop system w/likely concave-out features trailing. Also 304. Finally erupts spectacularly on next day, again with 304 and 195 coverage. 11-Dec-1997 07:27 E Amorphous material. 11-Dec-1997 19:57 NE A bizarre event, FeXIV & 195 coverage. A fan of material appears and moves azimuthally about 50 degrees. A contortion of North polar crown segment in 195. 12-Dec-1997 07:27 SW South polar crown filament erupts in 195 w/structured loop in LASCO. 12-Dec-1997 23:08 W Ragged new front following previous event. Also in North? 13-Dec-1997 16:23 NW Another ragged front? 13-Dec-1997 23:18 SE Bright non-radial blowout during gap. 15-Dec-1997 15:55 SE Rising loops? 17-Dec-1997 21:32 SW Very faint loop(s) appears. 18-Dec-1997 11:46 W New bright ragged front appears. 18-Dec-1997 >12:00 -- Nice EIT wave in eastern hemisphere produces no signature in LASCO? 18-Dec-1997 23:35 Halo Begins in NE, with EIT 195 off-limb event. Very structured concentric fronts. Separate event in SW? w/concave-out. 19-Dec-1997 16:00 All LASCO doors closed for momentum management. 20-Dec-1997 21:00 All LASCO doors opened. 20-Dec-1997 <21:00 N+ Partial halo above North and East in progress as observations resume. 21-Dec-1997 09:41 W Faint material precedes brighter ejection in NW. 21-Dec-1997 14:48 NE Loop? w/concave-out trailing feature and fan in North. 23-Dec-1997 05:40 SW Small non-radial ejection. 23-Dec-1997 21:18 SW+ Partial halo w/concentric and adjacent loops. East limb event also. Back-side, south pole event in 195. 26-Dec-1997 02:31 SE+ Partial halo w/internal structure. No apparent events in EIT, but geomagnetic storm on 1997.12.30(?). 27-Dec-1997 01:13 W Streamer broadens. Structured material concave-out next day. 27-Dec-1997 02:14 NE Streamer separates and several structured fronts are ejected. 28-Dec-1997 19:54 SE "Wave" of material ejected. 29-Dec-1997 06:09 SE Faint blob. 29-Dec-1997 12:22 W Faint front precedes fast jet in NW. 30-Dec-1997 05:10 SW Faint loop w/likely concave-out trailing. 30-Dec-1997 07:30 E Faint loop? precedes brighter material. Rising loops throughout this day and next.