Preliminary 1996 SOHO LASCO Coronal Mass Ejection List
(last revised 06-Jan-1997)
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 (russ.howard@nrl.navy.mil) or
Chris St.Cyr of NRL/CPI (orville.c.stcyr@nasa.gov).
Date(s) UT Location Comment
14-Jan-1996 ~03:00~10:00 West Streamer expands at base and blows out
15-Jan-1996 <07:08 >19:00 West Flat-top ~400km/s; Leading rarefaction?;
much structure; large disconnection at end
03-Feb-1996 07:01>11:27 NE Elongated bubble in streamer in C2. DE in C3?
03-Feb-1996 07:01>11:27 S Faint loop or mound in C2 (part of previous?)
08-Feb-1996 ~02:00~08:00 SW Elongated loop in C3 diffs (~<200 km/s)
10-Feb-1996 ~22:00 SE EIT prom eruption. Maybe in C2 and C3?
12-Feb-1996 ~06:00? SE EIT prom eruption. C2 and C3 (08:39)
13-Feb-1996 early UT E C3 loop/cloud in diffs
16-Feb-1996 late ? EIT eruptive -- MK3 at 20:30? JBG report.
17-Feb-1996 ~07:50~08:50 SW C3 small bubble in diffs
17-Feb-1996 ~13:06~22:19 W C3 Loop(?) tracked out through following day
18-Feb-1996 early UT SE C3 New feature (part of loop?) adjacent to pylon
02-Mar-1996 05:28-12:53 SE C2 mound/loop? C3 streamer
08/09-Mar-1996 09:18-01:18 E C3 faint cloud
12-Mar-1996 09:35-? SE C2/C3 faint
13-Mar-1996 02:42-? SE C2/C3 faint (part of previous?)
15/16-Mar-1996 ~16:00~16:00 SE "EIT EPL, C2, C3"
15/16-Mar-1996 16:30-01:00? W? C3 event?
22-Mar-1996 03:42-19:44? NW C2 and C3 material ejected along streamer
03-Apr-1996 all day SW likely C2 and C3 filled front
07-Apr-1996 ~07:00 W Faint loop in C2 and C3
08-Apr-1996 ~04:00 SE Faint in C2 and C3
11-Apr-1996 11:17 SE C2/C3 Front?/Loop? becomes jet?
13-Apr-1996 ~12:00 SW C2/C3 Jet?
23-Apr-1996 ~03:00 W possible event in C2. Nothing clear in C3
24-Apr-1996 3:30 W C3 blob
26-Apr-1996 late W C2/C3 loop? with multi-disconnections
01-May-1996 early W Cloud in C3 during Comet Hyakutake
01-May-1996 03:00-07:00 E Giant structured loop in C3 during Comet Hyakutake
05-May-1996 middle SE C2 and C3 streamer blowout
06-May-1996 early SE Another SE event in C2?
11-May-1996 >08:30 W C2/C3
14-May-1996 early SE Jet in C3 only?
16-May-1996 ~16:00 SW C1 event! Likely C2
18/19-May-1996 W C2/C3 slow blowout (continues on 20May)
22-May-1996 03:40 SE Narrow loop w/core in C2/C3
24-May-1996 06:51 SE Narrow cloud (V-shape in C2?)
24-May-1996 16:39 W Very faint loop (w/core?) in C2/C3.
01-Jun-96 ~05:00~15:00 E Cloud in C3 (not C2?)
05/06-Jun-96 late 05 June SW Jet in C2 and C3.
06-Jun-96 >06:22 SW Faint small cloud in C2 & C3.
07-Jun-96 early W C2/C3 event. EIT eruptive. UVCS?
07-Jun-96 ~04:41~08:00 SE C2/C3 faint V shape?
08-Jun-96 >06:07 NW Narrow streamer in C2 breaks loose.
13-Jun-96 ~02:30~09:30 SW Faint bubble in C2?
16-Jun-96 ~05:30 SE C2/C3 piece of streamer detaches?
16-Jun-96 >14:50 E C2/C3 (West too??)
17-Jun-96 02:00 E(&W?) C2/C3. And C1!
18-Jun-96 early SW Faint sharp arc in C2. C3 mound?
18-Jun-96 >17:00 E Very faint front in C2 diffs. And C1.
19-Jun-96 ~12:00 E YA C2/C3 event from this AR. And C1.
21-Jun-96 ~10:45 W Faint front in C3.
22-Jun-96 ~00:30 E C2/C3 event.
30-Jun-96 ~19:00 NE C2/C3 streamer detaches and reforms?
01-Jul-96 ~12:30 W C1/C2/C3 event.
02-Jul-96 ~20:00 SW C2/C3 small cloud (U shape)
03-Jul-96 ~15:30 SW YA C2/C3 small cloud.
04-Jul-96 ~15:00 ENE Faint front in C3.
05-Jul-96 early W C2/C3 piece of streamer detaches?
05-Jul-96 ~19:00 WSW C2/C3 material?
06-Jul-96 ~08:00 SW Small bubble in C2 streamer.
08-Jul-96 ~08:00 W Structured cloud in C2/C3.
09-Jul-96 12:30 W Big structured cloud in C2/C3 (X-flare)
10-Jul-96 ~06:00 E Faint cloud in C3 (not C2?).
10-Jul-96 07:30 SW C2/C3 bubble (NW component too?)
12-Jul-96 16:01 NW C2/C3 material (elongated loop?).
14-Jul-96 15:17 NW C2/C3 event. (Another elongated loop?)
15-Jul-96 11:42 W C2/C3 mound?
16-Jul-96 03:04 W C1/C2/C3. Also SW streamer after.
17-Jul-96 ~05:00 NW C2/C3 material.
17-Jul-96 all day SW Small streamer of previous days.
17-Jul-96 12:01 NE C1. C2/C3 missed front.
20-Jul-96 ~09:28 NE+ 180 deg loop (may be 270deg).
21-Jul-96 18:52 NW C1 event.
22-Jul-96 late W C2/C3 blob in streamer.
23-Jul-96 05:22(?) NE Faint elongated loop? in C2.
24-Jul-96 early NE Another faint loop in C2/C3.
24-Jul-96 ~11:00? SW Very faint front in C2/C3.
27-Jul-96 ~19:30 NE Cloud in C3.
28-Jul-96 late W Structured pinched loop in C2/C3.
29-Jul-96 23:01 W Bubble in C2/C3.
01-Aug-96 ~14:00 W YA bubble in C2/C3. (And South?)
** 02-Aug-96 to 11-Aug-96 ** Data Not Inspected at EOF for CMEs
12-Aug-96 03:55 W Rising loops?
12-Aug-96 03:55 E Faint front in East, followed by bright.
13-Aug-96 <04:30 W Material at ~4R in C2.
13-Aug-96 <04:30 NE Part of streamer detaches?
13-Aug-96 07:15 SW New material (part of previous?)
13-Aug-96 <16:09 SW Big structured loop.
14-Aug-96 07:26 SE Arc appears. (One image w/time jump.)
14-Aug-96 19:30 SW+ Big structured loop.
15-Aug-96 <03:30 SE Faint front?
15-Aug-96 21:00 SE Narrow loops appear.
16-Aug-96 14:14 S Loop. (Faint signal in N too?)
17-Aug-96 ~12:00 SE Multiple clouds(?).
19-Aug-96 11:18 SE C1; C2/C3 loop. U-shape visible.
20-Aug-96 02:00 SE Material in C2. Loop in C3?.
20-Aug-96 12:09 NW Faint in C2/C3.
21-Aug-96 23:01 NW Big C2 prom. EIT 304.
22-Aug-96 09:09 SE Structured loop. C1/C2/C3.
Type II/IV and C4 flare.
22-Aug-96 18:42 NE YA C2 prom. (Part of previous?)
03-Sep-96 ?? SW Difficult to define start time.
Concave-outward V-shape.
04-Sep-96 23:05 SW Another bubble.
06-Sep-96 <00:00? SW Puffs(?).
06-Sep-96 11:37 SE Thin streamer detaches in C2.
07-Sep-96 06:50 NE Narrow jet in C2 polar plume.
07-Sep-96 16:30 NW Bubble in C2/C3.
08-Sep-96 ~12:00 SE Concave-out in unsharp C2.
09-Sep-96 ~01:00 SW Faint, diffuse U in C2?
09-Sep-96 ~08:00 NW Faint C2/C3 loop.
18-Sep-96 <02:35 NW Irregular loop.
20-Sep-96 04:35 SW Narrow faint loop.
20-Sep-96 18:50 NE Narrow loop in C2/C3. Also C1.
21-Sep-96 13:55 SW Bubble in streamer. V-shape trails.
(earlier in C2?)
24-Sep-96 ~12:00 NE C2/C3 superposed on streamers.
26-Sep-96 <03:35 NE Faint U-shape in C2/C3.
26-Sep-96 03:35 SW Slow loops(?) in C2/C3. V-shape trails.
EIT movie of southern polar crown filament.
26-Sep-96 10:57 W Material moves along loop in C1.
EIT brightening at West limb.
28-Sep-96 14:37 N Single plume brightens in two frames.
29-Sep-96 05:38 NW Puffs(?).
29-Sep-96 19:41 NW Jet in C2/C3.
05-Oct-96 09:45 W C1 event. Huge structure loop in C2/C3.
06-Oct-96 >15:00 NW Structured loop(s).
09-Oct-96 early SW Loop?
11-Oct-96 >12:51 SE Slow build-up lets loose.
18-Oct-96 ~22:00 E Lift off in C1 FeXIV.
19-Oct-96 08:15 NE Bright knot in FeXIV. Bubble in C3.
19-Oct-96 16:32 SE C1/C2/C3 loop.
20-Oct-96 08:11 NE C1/C2/C3.
20-Oct-96 >22:00 S Another event? Part of previous?
24-Oct-96 02:35 NE Faint partial loop?
26-Oct-96 ~17:00 N Jet in NE; very faint loop? in NW.
27-Oct-96 late NW Thick loop.
28-Oct-96 all day NW Second narrow loop after previous.
29-Oct-96 03:30 NW YA bubble in streamer?
30-Oct-96 06:25 SW Jet in C2/C3.
30-Oct-96 08:40 E Material along streamer (puff?).
30-Oct-96 23:41 N Polar jet. EIT 195.
31-Oct-96 07:10 SW Thick jet above AR?
04-Nov-96 00:52 NE FeXIV transient?
04-Nov-96 01:40 W Spit of material FeXIV,C2,C3.
04-Nov-96 20:38 SE C2/C3 loop(?).
05-Nov-96 02:35 W FeXIV, Halpha,C2,C3. U-shape.
07-Nov-96 10:50 SE Bubble in streamer.
07-Nov-96 23:55 E FeXIV; C2/C3 loop w/helix.
08-Nov-96 14:42 NW/NE 304 EPL. Huge streamer blowout.
DATA GAP 18:00 09-Nov-96 through 18:00 11-Nov-96 (Momentum Management)
19-Nov-96 23:20 SW Slowly expanding loops.
DATA GAP 18:30 20-Nov-96 through 18:00 24-Nov-96
24-Nov-96 18:55 NW Loop in C3 after data gap.
24-Nov-96 23:55 SW No clean front C2/C3.
26-Nov-96 21:35 W Irregular loop w/structure (C1?).
27-Nov-96 all day W Almost continuous activity.
28-Nov-96 16:25 W Fast, irregular structured loop.
30-Nov-96 21:50 W Loop with trailing core.
02-Dec-96 16:40 W Loop becomes halo(?).
05-Dec-96 22:55 SE Slow rising loops, then fast. V-shape.
06-Dec-96 14:50 W Fast ejection.
07-Dec-96 03:30 E Very faint front?
07-Dec-96 18:32 SE Something faint? Deflection?
09-Dec-96 all day W+ Builds slowly, blows out on 10-Dec.
U-shape trails. East limb too?
14-Dec-96 all day NE Rising loops finally erupt.
15-Dec-96 03:30 W Jet or fan.
15-Dec-96 >09:30 NE Faint loop.
16-Dec-96 early E Another faint loop?
16-Dec-96 19:30 E Front (with trailing U)
moves through streamers.
17-Dec-96 >18:47 SW Bubble in streamer.
(One earlier in day.)
18-Dec-96 two days W Multiple events over several days.
19-Dec-96 17:40 W+ Large loop. (halo?)
20-Dec-96 19:30 W Two amorphous ejections.
21-Dec-96 22:34 W Concentric loops?
Beginning 22-Dec-1996 at 01:00 UT, LASCO and EIT entered a high
cadence mode with a 50 minute cyclical sequence designed to
examine CMEs.
22-Dec-96 13:43 NW Narrow ejection.
23-Dec-96 <05:55 NW Loops.
23-Dec-96 11:25 SW Narrow ejection.
23-Dec-96 22:06 SW A Rosetta stone?
24-Dec-96 <15:59 SW More ejections.
27-Dec-96 09:04 W Intricate structure with
multiple outward-V's.
High rate telemetry ends 28-Dec-1996 ~16:00.
27-Dec-96 ?? ?? RAH(?) report of streamer blowout.
See new file for 1997 events.
No further updates to this list are planned until a comprehensive
review of the 1996 observations is performed. 06-Jan-1997 CSt