Note on tracking Sun-Earth connection event

Observer: ...

ICME

1.1.Catalog
# Identified in ICME catalogs: Richardson & Cane List
RC Catalog
Disturbance start time: 2011/12/25 02:00 UT
Ejecta start time: 2011/12/25 02:00 UT
Ejecta end time: 2011/12/25 17:00 UT
dv= 0 km/s, v = 360 km/s, vmax = 370 km/s
Bmax (nT): 4
Dst: -7
Suggested source CME:
V_transit: - km/s

1.2.Comments
Overall ICME quality index: 3
ICME type: EJ
ICME signatures: rotation of Bz
low proton temperature


Based on 370 km/s -> search window 144.000 hrs or 6.00000 days -> 2011/12/19 02:00:00.000

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2011/12/19 01:25 UT, (from CDAW)
angle: 84, velocity: 135 km/s


A.2. STEREO:
Moderate CME in both COR2-A and COR2-B FOV, frontside moving CME. Appeared around 07:24 UT in COR2-B


A.3. AIA & GOES
Solar source is not clear

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


2.1. B. Candidate B
B.1. LASCO:
#CME 2011/12/20 04:00 UT, (from CDAW)
angle: 104, velocity: 433 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 11376 (N18W38), associated with B9.8 flare (onset 03:27)

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


2.1. C. Candidate C
C.1. LASCO:
#CME 2011/12/22 02:24 UT, (not in CDAW)
angle: , velocity: km/s


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


C.3. AIA & GOES
Eruption from AR 11381 (S19W18), associated with C5.4 flare (onset 01:56)

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


3. Other Comments
multiple possible candidates
4. Summary
SW index : 3
Source index: 3
Overall index: 3
Filament:
WDA:

comment on CMEs within search window

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