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DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-06-27T19:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-06-27T19:12:00-CME-001 (version 1)
Note Keyword:
COL: Possible collision with previous CME
DFL: Likely deflection of the event within the FOV
Faint: Faint event; may affect type assignment
HAL: Halo CME
OVR: Event partially overlaps with another CME
Source Signature Keyword:
Morphology Keyword:
O: Other
Note: Faint CME observed to the SE in SOHO LASCO C2 and SW in STEREO A COR2, very faintly in SOHO LASCO C3 and GOES CCOR-1. This CME front carries some uncertainty with it as the leading edge in STEREO A COR2 overlaps with the same triangulation for CME: 2026-06-26T18:53Z, which features a front to the SW in SOHO and GOES. The source for this CME is likely far-sided but not observed in any EUV imagery, and may be associated with an active region located around E140-E160 (previously located ~E150-E160 at 2026-06-26T07:09Z in Solar Orbiter PHI).
Version 1 submitted on 2026-06-28T00:38Z by Tony Iampietro
A Notification with ID
20260628-AL-002 was sent on 2026-06-28T01:17Z
A Notification with ID
20260628-AL-004 was sent on 2026-06-28T02:20Z
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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 |
-153.0 |
-15.0 |
936.0 |
C |
27.0 |
2026-06-27T22:25Z |
Triangulation between SOHO LASCO C2 and STEREO A COR2. There is uncertainty in this analysis due to this front in STEREO A COR2 also tracking well with a separate feature in SOHO, for CME: 2026-06-27T18:53Z; as such it is plausible there was a farsided simultaneous eruption that overlaps in COR2 but not in C2. |
1: Result 1 (2.0 AU)
Solar Orbiter = 2026-06-29T12:05Z
2: Result 2 (5.5 AU)
Solar Orbiter = 2026-06-29T11:47Z
Juno = 2026-07-15T00:00Z
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2026-06-27T23:45Z |
Tony Iampietro on 2026-06-28T00:42Z |
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| No Linked Activity Found. |
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