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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-05-23T16:00Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-05-23T16:00:00-CME-001 (version 1)
Source Location: N18W75
Active Region Number: 14441
Note Keyword:
DFL: Likely deflection of the event within the FOV
FOV: Front Bright front; may be evidence of pileup
Ha: Bright emission (likely H-alpha emission)
OFL: Outflowing material at the back of the CME
OVR: Event partially overlaps with another CME
Source Signature Keyword:
OFL: Moving/Opening field lines
DIM: Dimming
Morphology Keyword:
L: Loop
Note: CME observed to the WNW in SOHO LASCO C2/C3 and GOES CCOR-1, and NW as a partial halo in STEREO A COR2. The source is just NW of AR 14441 (N08W67), centered around N18W75. First observed as field line movement and loop breaking on the NW limb in SDO AIA 171/193, and dimming in SDO AIA 193, starting around 2026-05-23T15:01Z; also observed well in STEREO A EUVI as a wide dimming Starting around 2026-05-23T16:05Z identifying AR 14441 as the source and not former AR 14436 located further behind the limb.
Version 1 submitted on 2026-05-23T18:26Z by Tony Iampietro
A Notification with ID
20260523-AL-001 was sent on 2026-05-23T19:35Z
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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 |
LE
|
true |
SWPC_CAT |
83.0 |
29.0 |
680.0 |
C |
32.0 |
2026-05-23T21:36Z |
SOHO LASCO C2/C3 and STEREO A COR2 triangulation. |
1: Result 1 (2.0 AU)
Parker Solar Probe = 2026-05-24T19:16Z
STEREO A = 2026-05-26T14:08Z
Juice = 2026-05-28T20:00Z
2: Result 2 (2.0 AU)
Parker Solar Probe = 2026-05-24T19:22Z
STEREO A = 2026-05-26T13:26Z
Juice = 2026-05-28T20:00Z
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2026-05-23T18:12Z |
Tony Iampietro on 2026-05-23T18:27Z |
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All directly linked activities: |
| No Linked Activity Found. |
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