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: 2012/09/03 12:13 UT
Ejecta start time: 2012/09/04 11:00 UT
Ejecta end time: 2012/09/05 02:00 UT
dv= 120 km/s, v = 430 km/s, vmax = 440 km/s
Bmax (nT): 9
Dst: -61
Suggested source CME:
V_transit: - 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 440 km/s -> search window 94.4444 hrs or 3.93519 days -> 2012/08/30 13:46:20.000

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2012/08/31 20:00 UT, Halo CME (from CDAW)
angle: 360, velocity: 1442 km/s


A.2. STEREO:
Front side moving CME.


A.3. AIA & GOES
Filament eruption from ~S27E50, not associated with any major flare.

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

2.1. B. Candidate B
B.1. LASCO:
#CME 2012/08/31 19:24 UT (from CDAW)
angle: 157, velocity: 278 km/s


B.2. STEREO:
Front side moving CME.


B.3. AIA & GOES
Filament eruption from ~N18W46, not associated with any major flare.

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

2.1. C. Candidate C
C.1. LASCO:
#CME 2012/09/01 10:12 UT (from CDAW)
angle: 136, velocity: 598 km/s


C.2. STEREO:
CME front is not clear in COR2-A and COR2-B, front side moving CME


C.3. AIA & GOES
Solar source is not clear, could be AR 11560.

C.4. Comment:
less likely the source of disturbance due to the time of eruption and the initial propagation speed.


3. Other Comments
The disturbance could be due to the interaction between multiple eruptions.

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

comment on CMEs within search window

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