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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-25T15:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-03-25T15:48:00-CME-001 (version 1)
Note Keyword:
DFL: Likely deflection of the event within the FOV
OFL: Outflowing material at the back of the CME
Source Signature Keyword:
DIM: Dimming
Morphology Keyword:
O: Other
Note: Wide, faint, slow to evolve CME observed to the N/NW in SOHO LASCO C2/C3 and GOES CCOR-1, and less wide to the NE in STEREO A COR2. The CME begins very slow and faint, speeding up somewhat as it evolves. The source for this CME is not too clear, but may be associated with a very slow dimming region of the disk centered around N15W05 at 2026-03-25T15:00Z as part of a nearby coronal hole, slowly evolving and drifting with the coronal hole for almost a full 24 hours. This does match the slow, wide nature of this CME front, corroborating it as the potential source along with the swpc_cat triangulation to this general area of the disk.
Version 1 submitted on 2026-03-26T13:54Z by Tony Iampietro
No Notification has been sent for this activity yet.
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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 |
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CME Analysis
|
M2M_CATALOG |
LE
|
true |
SWPC_CAT |
15.0 |
30.0 |
295.0 |
S |
34.0 |
2026-03-26T12:14Z |
Triangulation between SOHO LASCO C3 and STEREO A COR2, as the CME accelerates after LASCO C2 visibility. The CME front is notably wider in LASCO C3 than STEREO A COR2, so the LASCO C3 width is used. |
1: Result 1 (2.0 AU)
Earth = 2026-03-29T20:00Z
BepiColombo = 2026-03-28T08:00Z
OSIRIS-APEX = 2026-03-30T15:00Z
STEREO A = 2026-03-30T01:00Z
2: Result 2 (5.5 AU)
Earth = 2026-03-29T20:00Z
BepiColombo = 2026-03-28T08:00Z
OSIRIS-APEX = 2026-03-30T16:00Z
STEREO A = 2026-03-30T01:00Z
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Tony Iampietro on 2026-03-26T13:56Z |
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