CME Analysis Information (for CME activity ID: 2025-02-27T07:23:00-CME-001)
Catalog: M2M_CATALOG
Data Level: 0 (0=real-time, 1=real-time and checked by supervising forecaster, 2=retrospective science level data analysis)
Use as primary measurement: true
Measurement Technique:
SWPC_CAT
Detecting Instruments:
SOHO: LASCO/C2
STEREO A: SECCHI/COR2
Image Type:
running difference
Speed (km/s):
1105.0
Speed measured at height (Rs):
8.0
Type: O
Direction (LON/LAT in HEEQ):
144.0/
42.0
Half Angular Width (degree): 30.0
Minor Half-width (degree): None Entered
Tilt (degree): None Entered
Time@21.5: 2025-02-27T10:29Z
Info/Session URL: None Entered
Note: Measurement using a very limited number of frames. Parameters based on candidate source location seen in STEREO A EUV imagery and best fit between two frames of SOHO LASCO C2 and STEREO A COR2 running difference imagery. There is a data gap that begins in STEREO A COR2 at 2025-02-27T07:53Z and the leading edge is too diffuse to track after the gap ends at 2025-02-27T09:23Z. The leading edge becomes visible halfway through C2 field of view after the end of a data gap in SOHO LASCO C2, and once it enters the C3 field of view, it is almost entirely blocked by the pylon and cannot reliably be tracked.
Measurement Feature Code(s):
LE: Leading Edge
General Keyword(s):
Submitted on 2025-03-04T14:32Z by
Mary Aronne
A Notification with ID
20250227-AL-005 was sent on 2025-02-27T21:48Z
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