CME Analysis Information (for CME activity ID: 2025-04-11T13:48:00-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
Image Type:
running difference
Speed (km/s):
917.0
Speed measured at height (Rs):
7.0
Type: C
Direction (LON/LAT in HEEQ):
43.0/
-18.0
Half Angular Width (degree): 10.0
Minor Half-width (degree): None Entered
Tilt (degree): None Entered
Time@21.5: 2025-04-11T17:32Z
Info/Session URL: None Entered
Note: Measurement of the faint leading edge using four frames of SOHO LASCO C2. Measurement was made using the candidate source longitude, taking into consideration the heavy southern deflection which was possibly indicated in UV imagery. The leading edge becomes diffuse before leaving the C2 field of view. No STEREO A COR2 imagery was available in real time for this CME due to a data gap which began at 2025-04-11T11:23Z.
Measurement Feature Code(s):
LE: Leading Edge
General Keyword(s):
Submitted on 2025-04-11T23:19Z by
Hannah Hermann
A Notification with ID
20250412-AL-002 was sent on 2025-04-12T02:06Z
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