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DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-09-05T15:36Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-09-05T15:36:00-CME-001 (version 3)
Source Location: S12W68
Active Region Number: 14520
Note Keyword:
FOV: Front Bright front; may be evidence of pileup
Ha: Bright emission (likely H-alpha emission)
HAL: Halo CME
PRM: Prominence material (filamentary structures)
SEP: Solar Energetic Particle event
Source Signature Keyword:
FLR: Flare
PEA: Post eruption arcade
FIL: Filament eruption
OFL: Moving/Opening field lines
BR: Brightening
DIM: Dimming
EUVW: EUV Wave
Morphology Keyword:
FS: Flux Rope and Shock Candidate
Note: Bright CME observed to the SW in SOHO LASCO C2/C3 and GOES CCOR-1, and as a full halo in STEREO A COR2. The source is associated with an M1.0 flare from AR 14520 peaking at 2026-09-05T15:18Z, observed in SDO AIA 131. The eruption is additionally observed as field line movement, wide EUV wave, dimming, filament ejecta, and post-eruptive arcade/brightening in SDO AIA 171/193/211/304 starting at 2026-09-06T15:04Z. Observed in STEREO A EUVI 304 as brightening at 2026-09-05T15:15Z and STEREO A EUVI 195 as dimming at 2026-09-05T15:55Z.
Version 1 submitted on 2026-09-05T16:30Z by Tony Iampietro
Version 2 submitted on 2026-09-05T17:48Z by Tony Iampietro
Version 3 submitted on 2026-09-05T19:27Z by Tony Iampietro
A Notification with ID
20260905-AL-009 was sent on 2026-09-05T17:24Z
A Notification with ID
20260905-AL-011 was sent on 2026-09-05T20:36Z
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The List of CME Analysis already entered: |
| Event Type |
Catalog |
Measurement TypeCME measurement type: Leading Edge (LE), Shock Front (SH), Right Hand Boundary (RHB), Left Hand Boundary (LHB), Black/White Boundary (BW), Prominence Core (COR), Disconnection Front (DIS), Trailing Edge (TE). |
Prime?"primary flag" which is either True or False. If there are multiple CME analysis entries for a single CME, this flag would indicate which analysis is considered most accurate per measurement type. This is a helpful flag if you would like to download only one most accurate CME analysis per CME per Measurement Type |
Technique |
Long |
Lat |
Speed |
Type |
Half Width |
Time 21.5 |
Note |
WSA-ENLIL+Cone Result(s) |
Measured On |
Submitted By |
|
CME Analysis
|
M2M_CATALOG |
SH
|
true |
SWPC_CAT |
68.0 |
-3.0 |
1111.0 |
O |
42.0 |
2026-09-05T18:47Z |
Preliminary SHOCK SOHO LASCO C2 only 3D analysis, using the source longitude at W68 as an estimate. With no COR2A available for triangulation yet, parameters could vary slightly. |
1: Result 1 (2.0 AU)
Mars = 2026-09-08T21:35Z
Psyche = 2026-09-08T22:24Z
Solar Orbiter = 2026-09-06T20:39Z
STEREO A = 2026-09-07T14:53Z
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2026-09-05T16:39Z |
Elizabeth Juelfs on 2026-09-05T18:49Z |
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CME Analysis
|
M2M_CATALOG |
LE
|
true |
SWPC_CAT |
78.0 |
-11.0 |
892.0 |
C |
44.0 |
2026-09-05T19:33Z |
Updated BULK measurement based on updated imagery from SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. This updated measurement is pushed farther to the west to incorporate the leading edge feature in STEREO A COR2. |
1: Result 1 (2.0 AU)
Mars = 2026-09-09T01:24Z
Psyche = 2026-09-09T00:30Z
STEREO A = 2026-09-07T21:39Z
Solar Orbiter = 2026-09-07T02:00Z
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|
Elizabeth Juelfs on 2026-09-05T18:49Z |
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CME Analysis
|
M2M_CATALOG |
LE
|
false |
SWPC_CAT |
68.0 |
-9.0 |
966.0 |
C |
36.0 |
2026-09-05T19:15Z |
SOHO LASCO C2 only preliminary 3D analysis, using the source longitude at W68 as an estimate. With no COR2A available for triangulation yet, parameters could vary slightly. |
1: Result 1 (2.0 AU)
Mars = 2026-09-09T08:29Z
STEREO A = 2026-09-07T20:58Z
Psyche = 2026-09-09T03:00Z
Solar Orbiter = 2026-09-07T04:00Z
2: Result 2 (2.0 AU)
Mars = 2026-09-09T08:29Z
STEREO A = 2026-09-07T20:58Z
3: Result 3 (5.5 AU)
Mars = 2026-09-09T10:32Z
STEREO A = 2026-09-07T20:43Z
Psyche = 2026-09-09T01:00Z
Solar Orbiter = 2026-09-07T01:00Z
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2026-09-05T16:33Z |
Tony Iampietro on 2026-09-05T16:41Z |
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