CME Analysis Information (for CME activity ID: 2023-04-09T09:48:00-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/C3
STEREO A: SECCHI/COR2
Image Type:
running difference
Speed (km/s):
655.0
Speed measured at height (Rs):
11.3
Type: C
Direction (LON/LAT in HEEQ):
76.0/
16.0
Half Angular Width (degree): 45.0
Minor Half-width (degree): None Entered
Tilt (degree): None Entered
Time@21.5: 2023-04-09T15:47Z
Info/Session URL: None Entered
Note: These parameters are based off of the best fit between SOHO LASCO C3 and STEREO A COR2 imagery, with keeping the source location in mind. Additional measurements at longitudes between 60 and 125 degrees yielded roughly the same velocities. All measurements appeared to be relatively good fits for the features, making it difficult to choose which measurement had the best parameters. Using higher longitudes gave more inclusion on the fainter features on the north side of the CME while the longitudes closer to the one used above provided better lines of best fit.
Measurement Feature Code(s):
LE: Leading Edge
General Keyword(s):
Submitted on 2023-04-09T15:18Z by
Carina Alden
A Notification with ID
20230409-AL-001 was sent on 2023-04-09T16:16Z
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