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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2024-06-01T19:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
Activity ID: 2024-06-01T19:12:00-CME-001 (version 3)
Note Keyword:
GAP: Data gap
HAL: Halo CME
OFL: Outflowing material at the back of the CME
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
FS: Flux Rope and Shock Candidate
Note: A somewhat asymmetric full halo CME with two consecutive fronts seen best in SOHO LASCO C3 (but also in C2). With the exception of one (or two) early timestamps this event is covered by a large gap in STEREO A COR2. The indication of the backsided source of this halo in EUV imagery is possibly a faint and very fast movement of field lines that likely happens far behind the east limb seen starting 2024-06-01T18:39Z in AIA 171 in the ESE.
The backsided analysis is supported by the location of a large backsided active region in helioseismology imagery from GONG - likely the former AR 13679 that was around lat/lon -8/-170 at the time of this event. In addition, STIX instrument on the Solar Orbiter detected a significant flare (equivalent of GOES X1)peaking at 2024-06-01T18:45Z.
Identifying the coronal signatures of this CME is complicated by an almost simultaneous X1.0 class flare from Active Region 13697 on the Earth-facing disk followed by a later M7.3 flare from the same front-sided Active Region. The front-sided flares are accompanied by relatively weak coronal signatures of eruption - dimming and post-eruptive arcades.
Submitted on 2024-07-10T21:14Z by Anna
Chulaki
A Notification with ID
20240602-AL-001 was sent on 2024-06-02T15:02Z
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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) |
Submitted By |
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CME Analysis
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M2M_CATALOG |
SH
|
true |
SWPC_CAT |
-168.0 |
-6.0 |
1503.0 |
O |
45.0 |
2024-06-01T21:09Z |
Somewhat uncertain analysis of the outer, earlier front of this halo CME (possibly its shock), based on the fit with two coronagraphs. Only one coronagraph frame is available for STEREO A COR2 bc of a data gap, adding to the uncertainty of analysis. These parameters are somewhat confirmed by the location of a large backsided active region in helioseismology imagery from GONG which is likely the former AR 13679 that was at lat/lon -8/-170 at the time of event. |
Not modeled
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Anna Chulaki on 2024-06-02T15:06Z |
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CME Analysis
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M2M_CATALOG |
LE
|
true |
SWPC_CAT |
-175.0 |
-8.0 |
1215.0 |
O |
45.0 |
2024-06-01T21:42Z |
Approximate analysis of the second front of this halo CME (possibly its bulk), based on a fit with two coronagraphs. For STEREO A COR2 imagery only one timestamp is available (bc of a large data gap), adding to the uncertainty of analysis. Analysis is supported by the location of a large backsided active region in helioseismology imagery from GONG - likely the former AR 13679 that was around lat/lon -8/-170 at the time of this event. In addition, STIX instrument on Solar Orbiter detected a significant flare at 2024-06-01T18:45Z. |
1: Result 1 (2.0 AU)
Solar Orbiter = 2024-06-03T16:23Z
2: Result 2 (5.5 AU)
Solar Orbiter = 2024-06-03T16:11Z
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Anna Chulaki on 2024-06-02T15:11Z |
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