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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2023-08-18T19:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2023-08-18T19:48:00-CME-001 (version 2)
Source Location: N21W41
Active Region Number: 13409
Note Keyword:
FOV: Front Bright front; may be evidence of pileup
GAP: Data gap
OVR: Event partially overlaps with another CME
Source Signature Keyword:
FLR: Flare
OFL: Moving/Opening field lines
DIM: Dimming
EUVW: EUV Wave
Morphology Keyword:
US: Unknown and Shock Candidate
Note: Bright CME seen to the NW in SOHO LASCO C2 and C3. There is a data gap in STEREO A COR2 imagery for most of this event, it is possibly seen in later COR2A difference imagery frames after the data gap ends at 2023-08-18T23:23Z. The source of this CME is a C3.7 class flare from AR13409 (~N21W41) peaking at 2023-08-18T19:30Z with associated brief dimming to the NW of the AR starting around 2023-08-18T19:24Z, best seen in SDO/AIA 193. There is also very quick moving/opening field lines around the same time in SDO/AIA 193 to the NW. Additionally, an EUV wave is visible along the NW limb in GOES SUVI 284 starting around 2023-08-18T19:27Z. This CME ends up being overtaken by the CME first seen at 2023-08-18T22:00Z in SOHO LASCO C2 following the same path as this CME.
Submitted on 2023-08-19T22:46Z by Carina
Alden
A Notification with ID
20230819-AL-001 was sent on 2023-08-19T19:18Z
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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, earlier measurements are marked as false when new or more accurate measurements are made. This is a helpful flag if you would like to download only one most accurate CME analysis per CME |
Technique |
Long |
Lat |
Speed |
Type |
Half Width |
Time 21.5 |
Note |
WSA-ENLIL+Cone Result(s) |
Submitted By |
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CME Analysis
|
M2M_CATALOG |
LE
|
true |
SWPC_CAT |
41.0 |
21.0 |
505.0 |
C |
31.0 |
2023-08-19T02:25Z |
These parameters are based off of the potential source location of AR13409. The front of the CME has a slightly irregular shape which impacted the ability to get a good fit with the lemniscate shape. Additionally, the CME starting at 2023-08-18T22:00Z overlaps this CME in later frames, making it difficult to track the front further out in the C3 field of view. |
1: Result 1 (2.0 AU)
Earth = 2023-08-22T12:00Z
OSIRIS-REx = 2023-08-22T22:00Z
Parker Solar Probe = 2023-08-21T08:00Z
STEREO A = 2023-08-22T08:00Z
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Carina Alden on 2023-08-19T16:49Z |
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