Note on tracking Sun-Earth connection event

Observer: SD

ICME

1.1.Catalog
# Identified in ICME catalogs: Richardson & Cane List
RC Catalog
Disturbance start time: 2012/01/21 05:01 UT
Ejecta start time: 2012/01/21 06:00 UT
Ejecta end time: 2012/01/22 08:00 UT
dv= 30 km/s, v = 320 km/s, vmax = 330 km/s
Bmax (nT): 10
Dst: -10
Suggested source CME: 2012/01/18 12:24
V_transit: 650 km/s

1.2.Comments
Overall ICME quality index: 3
ICME type: SH+EJ
ICME signatures: slight increase in total magnetic field
slight increase in sw velocity


Based on 330 km/s -> search window 144.000 hrs or 6.00000 days -> 2012/01/15 05:01:00.000

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


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


A.3. AIA & GOES
Filament eruption from ~S14E14, not associated with any major flare


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

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


B.2. STEREO:
partial halo CME in both COR2-A an COR2-B FOV, frontside moving CME.


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

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

3. Other Comments
possible candidates are similar the disturbance on 2012/01/22

4. Summary
SW index :3
Source index: 1
Overall index: 3
Filament: Y
WDA: N/A

comment on CMEs within search window

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