Note on tracking Sun-Earth connection event

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ICME

1.1.Catalog
# Identified in ICME catalogs: Richardson & Cane List
RC Catalog
Disturbance start time: 2011/09/26 12:34 UT
Ejecta start time: 2011/09/26 20:00 UT
Ejecta end time: 2011/09/28 15:00 UT
dv= 130 km/s, v = 580 km/s, vmax = 700 km/s
Bmax (nT): 7
Dst: -118
Suggested source CME: 2011/09/24 12:48
V_transit: 870 km/s

1.2.Comments
Overall ICME quality index: 3
ICME type: SH+EJ
ICME signatures: bidirectional PAD
smoothly decreasing sw velocity
low plasma beta


Based on 700 km/s -> search window 59.3651 hrs or 2.47354 days -> 2011/09/24 01:12:05.719

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2011/09/24 12:48 UT, Halo CME (from CDAW)
angle: 360, velocity: 1915 km/s


A.2. STEREO:
Halo CME in both COR2-A and COR2-B, frontside moving CME


A.3. AIA & GOES
Eruption from AR 11302 (N15E59), associated with M7.1 flare (onset 12:33)

A.4. Comment:
Likely the source of the disturbance.


2.1. B. Candidate B
B.1. LASCO:
#CME 2011/09/24 09:48 UT, Partial Halo CME (from CDAW)
angle: 145, velocity: 1936 km/s


B.2. STEREO:
Halo CME in both COR2-A and COR2-B, frontside moving CME


B.3. AIA & GOES
Eruption from AR 11302 (N13E61), associated with X1.9 flare (onset 09:21)

B.4. Comment:
Could be the source of the disturbance




2.1. C. Candidate C
C.1. LASCO:
#CME 2011/09/24 19:36 UT, (from CDAW)
angle: , velocity: 972 km/s


C.2. STEREO:
Major CME in both COR2-A and COR2-B, frontside moving CME


C.3. AIA & GOES
Eruption from AR 11302 (N12E42), associated with M3.0 flare (onset 19:09)

C.4. Comment:
Less likely the source of the disturbance due to CME's propagation direction

3. Other Comments

4. Summary
SW index: 3
Source index: 1
Overall index: 3
Filament: N/A
WDA: Y



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Curators: Jie Zhang (jzhang7 AT gmu.edu); Suman Dhakal (sdhakal2 AT masonlive.gmu.edu);
Last updated: 2022/01