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: 2011/09/09 12:42 UT
Ejecta start time: 2011/09/10 03:00 UT
Ejecta end time: 2011/09/10 15:00 UT
dv= 150 km/s, v = 470 km/s, vmax = 530 km/s
Bmax (nT): 14
Dst: -75
Suggested source CME: 2011/09/06 23:05
V_transit: 680 km/s

1.2.Comments
Overall ICME quality index: 2
ICME type: SH+EJ
ICME signatures: Large jump in magnetic field
bidirectional PAD of electron
smoothly decreasing sw velocity


Based on 530 km/s -> search window 78.4067 hrs or 3.26695 days -> 2011/09/06 06:17:35.875

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2011/09/06 23:05 UT, Halo CME (from CDAW)
angle: 360, velocity: 575 km/s


A.2. STEREO:
Partial Halo CME in both COR2-A and COR2-B. Frontside moving CME.


A.3. AIA & GOES
Eruption from AR 11283 (N14W18), associated with X2.1 flare (onset 22:12)

A.4. Comment:
Likely the source of disturbance

2.1. B. Candidate B
B.1. LASCO:
#CME 2011/09/06 02:24 UT, Halo CME (from CDAW)
angle: 360, velocity: 782 km/s


B.2. STEREO:
Major CME in both COR2-A and COR2-B. Frontside moving CME.


B.3. AIA & GOES
Eruption from AR 11283 (N14W07), associated with M5.3 flare (onset 01:35)

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


2.1. C. Candidate C
C.1. LASCO:
#CME 2011/09/07 23:05 UT, Halo CME (from CDAW)
angle: 360, velocity: 782 km/s


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


C.3. AIA & GOES
Eruption from AR 11283 (N14W28), associated with X1.8 flare (onset 22:32)

C.4. Comment:
less likely the source of disturbance due to the time of eruption


3. Other Comments
Multiple eruptions from the same AR (11283), interaction among CMEs is possible

4. Summary
SW index : 2
Source index: 1
Overall index: 2
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