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: 2012/09/30 11:31 UT
Ejecta start time: 2012/09/30 14:00 UT
Ejecta end time: 2012/09/30 20:00 UT
dv= 30 km/s, v = 310 km/s, vmax = 310 km/s
Bmax (nT): 8
Dst: -39
Suggested source CME:
V_transit: - km/s

1.2.Comments
Overall ICME quality index: 2
SW type: EJ
ICME signatures: increase in magnetic field
low plasma density


Based on 310 km/s -> search window 144.000 hrs or 6.00000 days -> 2012/09/24 11:31:00.000

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2012/09/25 ~04:35 UT, it is not clear in C2 data and is not listed on CDAW.


A.2. STEREO:
Front side moving CME. CME is visible in COR1 data.


A.3. AIA & GOES
Eruption from AR 11577 (N02E20), associated with C3.6 flare.

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

2.1. B. Candidate B
B.1. LASCO:
#CME 2012/09/24 16:48 UT (from CDAW)
angle: 11, velocity: 271 km/s


B.2. STEREO:
Narrow and frontside moving CME in COR2-B. CME is not clear in COR2-A.


B.3. AIA & GOES
Eruption from AAR 11577 (N06E21), associated with C1.6 flare.

B.4. Comment:
Could be related to the disturbance.

2.1. C. Candidate C
C.1. LASCO:
#CME 2012/09/24 21:36 UT (from CDAW)
angle: 44, velocity: 331 km/s


C.2. STEREO:
Narrow and front side moving CME, not visible in COR2-A

C.3. AIA & GOES
Eruption from AR 11578 (N16E15), not associated with any major flare.

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




3. Other Comments

4. Summary
SW index: 2
Source index: 3
Overall index: 3
Filament: No
WDA: Yes

comment on CMEs within search window

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