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: 2011/12/29 22:00 UT
Ejecta start time: 2011/12/29 22:00 UT
Ejecta end time: 2011/12/30 09:00 UT
dv= 0 km/s, v = 400 km/s, vmax = 420 km/s
Bmax (nT): 7
Dst: -16
Suggested source CME: 2011/12/26 :
V_transit: - km/s

1.2.Comments
Overall ICME quality index: 3
ICME type: EJ
ICME signatures: bidirectional PAD of electron
smoothly decreasing sw velocity
lower than expected proton temperature


Based on 420 km/s -> search window 98.9418 hrs or 4.12257 days -> 2011/12/25 19:03:29.531

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2011/12/26 11:48 UT, Partial Halo CME (from CDAW)
angle: 277; velocity 736 km/s

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

A.3. AIA & GOES:
Eruption from AR 11384 (N17W02), associated with C5.7 flare (onset 11:23)


A.4. Comment:
could be the source of disturbance.

2.1. B. Candidate B
B.1. LASCO:
#CME 2011/12/25 18:48 UT, Partial Halo CME (from CDAW)
angle: 125; velocity 366 km/s

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

B.3. AIA & GOES:
Eruption from AAR 11387 (S22W26), associated with M4.0 flare (onset 18:11)
A second CME from the same location associated with C7.7 flare (onset 20:23)

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



3. Other Comments
Two possible sources

4. Summary
SW index : 3
Source index: 2
Overall index: 3
Filament: N/A
WDA: Y

comment on CMEs within search window


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