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: 2011/08/04 21:53 UT
Ejecta start time: 2011/08/05 05:00 UT
Ejecta end time: 2011/08/05 14:00 UT
dv= 70 km/s, v = 430 km/s, vmax = 440 km/s
Bmax (nT): 5
Dst: -15
Suggested source CME: 2011/08/02 06:36
V_transit: 670 km/s

1.2.Comments
Overall ICME quality index: 3
ICME type: SH + EJ
ICME signatures:


Based on 440 km/s -> search window 94.4444 hrs or 3.93519 days -> 2011/07/31 23:26:20.000

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2011/08/02 06:36 UT (from CDAW)
angle: 268, velocity: 712 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 11261 (N17W12), associated with M1.4 class flare (onset 05:19)

A.4. Comment:
Likely the source of disturbance


2.1. B. Candidate B
B.1. LASCO:
#CME 2011/08/03 14:00 UT, Halo CME (from CDAW)
angle: 360, velocity: 610 km/s


B.2. STEREO:
Major CME in both COR2-A and COR2-B FOV, front side moving CME


B.3. AIA & GOES
Eruption from AR 11261 (N16W30), associated with M6.0 flare (onset 13:17)

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

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