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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 4)
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 2026-09-05T15:04Z. 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
Version 4 submitted on 2026-09-09T16:14Z by Mary Aronne
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 |
SHOCK SOHO LASCO C2 only 3D analysis, using the source longitude at W68 as an estimate. With no COR2A available for triangulation at the time of analysis, 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
(PE: -13.6 h)
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2026-09-05T16:39Z |
Mary Aronne on 2026-09-09T16:15Z |
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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
(PE: -6.8 h)
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
(PE: -7.5 h)
Psyche = 2026-09-09T03:00Z
Solar Orbiter = 2026-09-07T04:00Z
2: Result 2 (5.5 AU)
Mars = 2026-09-09T10:32Z
STEREO A = 2026-09-07T20:43Z
(PE: -7.8 h)
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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