Note on tracking Sun-Earth connection event

Observer:

ICME

1.1.Catalog
# Identified in ICME catalogs: Richardson & Cane List
RC Catalog
Disturbance start time: 2012/01/22 06:11 UT
Ejecta start time: 2012/01/22 23:00 UT
Ejecta end time: 2012/01/23 07:00 UT
dv= 50 km/s, v = 450 km/s, vmax = 460 km/s
Bmax (nT): 9
Dst: -71
Suggested source CME: 2012/01/19 14:36
V_transit: 670 km/s

1.2.Comments
Overall ICME quality index: 2
ICME type: SH+EJ
ICME signatures: Jump in magnetic field
Jump in SW velocity


Based on 460 km/s -> search window 90.3382 hrs or 3.76409 days -> 2012/01/18 11:50:42.594

2. CME
2.1. B. Candidate B
A.1. LASCO:
#CME 2012/01/19 14:36 UT, halo CME (from CDAW)
angle: 360; velocity: 1120 km/s

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

A.3. AIA & GOES:
Eruption from AR 11402 (N32E22), associated with M3.2 class flare .

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

2.1. A. Candidate A
A.1. LASCO:
#CME 2012/01/18 12:24 UT (from CDAW)
angle: 203, velocity: 267 km/s


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


B.3. AIA & GOES
Filament eruption from ~S07E07, not associated with any major flare.

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







3. Other Comments

GMU ENLIL run shows eruption on 2012/01/19 interacted with the eruption on 2012/01/18 and reaching on Earth ~ 2012/01/22 13:00

Two possible candidates.

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