1.1.Catalog
# Identified in ICME catalogs: Richardson & Cane List
RC Catalog
Disturbance start time: 2011/02/18 01:30 UT
Ejecta start time: 2011/02/18 19:00 UT
Ejecta end time: 2011/02/20 08:00 UT
dv= 130 km/s, v = 470 km/s, vmax = 600 km/s
Bmax (nT): 10
Dst: -32
Suggested source CME: 2011/02/15 02:36
V_transit: 590 km/s
1.2.Comments
Overall ICME quality index: 2
ICME type: SH+MC
ICME signatures: bidirectional PAD distribution
smooth decrease of sw velocity
high charge state
low plasma beta
Based on 600 km/s -> search window 69.2593 hrs or 2.88580 days -> 2011/02/15 04:14:26.656
2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME at 2011/02/15 02:24 UT, Halo CME (from CDAW)
angle: 360; velocity 669 km/s
A.2. STEREO:
Major CME in both COR2-A and COR2-B FOV, frontside moving CME.
A.3. AIA & GOES:
Eruption from AR 11158 (S20W10), associated with X2.2 flare (onset 01:44)
A.4. Comment:
Likely the source of disturbance
2.1. B. Candidate B
B.1. LASCO:
#CME at 2011/02/14 18:24 UT, Halo CME (from CDAW)
angle: 360; velocity 326 km/s
B.2. STEREO:
Moderate CME in both COR2-A and COR2-B FOV, frontside moving CME.
B.3. AIA & GOES:
Eruption from AR 11158 (S20W04), associated with M2.2 flare (onset 17:20)
B.4. Comment:
Could be the source of disturbance (outside of the search window)
3. Other Comments
Multiple eruption from AR 11158, interaction between CMEs is possible.