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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-05-31T23:36Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-05-31T23:36:00-CME-001 (version 2)
Note Keyword:
Ha: Bright emission (likely H-alpha emission)
HAL: Halo CME
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
LS: Loop and Shock Candidate
Note: Large, bright, loop CME first seen to the NE in SOHO LASCO C2 beginning at 2026-05-31T23:36Z. This event is visible to the northeast in SOHO LASCO C2/C3 and GOES CCOR-1 imagery, and is visible as a partial halo to the northwest in STEREO A COR2 imagery. The source of this event is wide opening field lines seen originating from beyond the NE limb beginning at approx. 2026-05-31T22:57Z in SDO AIA 171, 193 and GOES SUVI 284.
Version 1 submitted on 2026-06-01T01:34Z by Melissa Kane
Version 2 submitted on 2026-06-01T11:51Z by Mattie Anastopulos
A Notification with ID
20260601-AL-001 was sent on 2026-06-01T12:33Z
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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 |
-148.0 |
30.0 |
889.0 |
C |
42.0 |
2026-06-01T03:54Z |
Updated bulk measurement based on the best fit between SOHO LASCO C2/C3 and STEREO A COR2 imagery. |
1: Result 1 (2.0 AU)
Solar Orbiter = 2026-06-02T18:47Z
BepiColombo = 2026-06-02T00:00Z
2: Result 2 (5.5 AU)
Solar Orbiter = 2026-06-02T18:32Z
Juno = 2026-06-12T18:00Z
BepiColombo = 2026-06-02T00:00Z
|
2026-06-01T11:15Z |
Mattie Anastopulos on 2026-06-01T11:37Z |
|
CME Analysis
|
M2M_CATALOG |
SH
|
true |
SWPC_CAT |
-138.0 |
34.0 |
967.0 |
C |
53.0 |
2026-06-01T04:08Z |
Updated shock measurement based on the best fit between SOHO LASCO C3 and STEREO A COR2 imagery. |
1: Result 1 (2.0 AU)
BepiColombo = 2026-06-02T00:25Z
Solar Orbiter = 2026-06-02T17:11Z
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2026-06-01T11:30Z |
Mattie Anastopulos on 2026-06-01T11:37Z |
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CME Analysis
|
M2M_CATALOG |
LE
|
false |
Plane-of-sky |
NONE |
40.0 |
486.0 |
S |
39.0 |
2026-06-01T07:00Z |
PRELIMINARY bulk plane-of-sky measurement using a longitude of E90 based on best fit in SOHO LASCO C2. |
Not modeled
|
2026-06-01T01:14Z |
Melissa Kane on 2026-06-01T01:37Z |
|
CME Analysis
|
M2M_CATALOG |
SH
|
false |
Plane-of-sky |
NONE |
59.0 |
540.0 |
C |
52.0 |
2026-06-01T06:07Z |
PRELIMINARY shock plane-of-sky measurement using a longitude of E90 based on best fit in SOHO LASCO C2. |
Not modeled
|
2026-06-01T01:14Z |
Elizabeth Juelfs on 2026-06-01T19:10Z |
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