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DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-02-18T04:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-02-18T04:48:00-CME-001 (version 1)
Note Keyword:
GAP: Data gap
Ha: Bright emission (likely H-alpha emission)
Source Signature Keyword:
FIL: Filament eruption
OFL: Moving/Opening field lines
Morphology Keyword:
F: Flux Rope
Note: CME first seen to the W in SOHO LASCO C2 starting at 2026-02-18T04:48Z. This CME is also seen to the W in SOHO LASCO C3, GOES CCOR-1, and STEREO A COR2. The source of this CME is most likely related to a large filament eruption near former AR 14371. Filamentary material can be seen erupting beyond the SW limb in SDO AIA 304 beginning around 2026-02-18T04:10Z. A large opening of field lines can also be seen beyond the SW limb in SDO AIA 171 and SDO AIA 193. The same eruption can be more clearly seen in STEREO A EUVI 195 starting around 2026-02-18T03:55Z and later around 2026-02-18T04:45Z in STEREO A EUVI 304 after resumption of data after a real-time data gap.
Version 1 submitted on 2026-02-18T12:46Z by Elizabeth Juelfs
A Notification with ID
20260218-AL-001 was sent on 2026-02-18T13:57Z
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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 |
130.0 |
-21.0 |
725.0 |
C |
46.0 |
2026-02-18T09:35Z |
Measurement based on best fit of the leading edge in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. There is some uncertainty in these parameters as longitudes ranging from ~W115 to ~W131 yield reasonable measurements. |
1: Result 1 (2.0 AU)
Juice = 2026-02-22T16:32Z
Mars = 2026-02-22T10:00Z
Parker Solar Probe = 2026-02-20T00:00Z
Psyche = 2026-02-23T08:00Z
2: Result 2 (5.5 AU)
Juice = 2026-02-22T15:40Z
Mars = 2026-02-22T10:00Z
Psyche = 2026-02-23T08:00Z
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Elizabeth Juelfs on 2026-02-18T12:49Z |
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| No Linked Activity Found. |
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