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: 2012/03/08 11:03 UT
Ejecta start time: 2012/03/09 03:00 UT
Ejecta end time: 2012/03/11 07:00 UT
dv= 270 km/s, v = 550 km/s, vmax = 890 km/s
MC index: 7
Dst: -145
Suggested source CME: 2012/03/07 00:24
V_transit: 1220 km/s

1.2.Comments
Overall ICME quality index: 2
ICME type: SH+MC
ICME signatures: Increase in total magnetic field
rotation of Bz
increase in sw velocity, afterwards it sw decreases smoothly
low plasma beta




Based on 890 km/s -> search window 46.6916 hrs or 1.94548 days -> 2012/03/06 12:21:30.125

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2012/03/07 00:24 UT, halo CME (from CDAW)
angle: 360, velocity: 2684 km/s


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


A.3. AIA & GOES
Associated with X5.4 class flare from AR 11429 (~N18E31)

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


2.1. A. Candidate B
B.1. LASCO:
#CME 2012/03/07 01:30 UT, Halo CME (from CDAW)
angle: 360, velocity: 1825 km/s


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


B.3. AIA & GOES
Associated with X1.3 class flare from AR 11429 (~N15E26)


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



2.1. A. Candidate C
C.1. LASCO:
#CME 2012/03/06 04:48 UT (from CDAW)
angle: 111, velocity: 536 km/s


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


C.3. AIA & GOES
Associated with M1.0 flare from AR 11429 (N16E39)

C.4. Comment:
less likely the source of disturbance due the location and size of the CME


2.1. A. Candidate D
D.1. LASCO:
#CME 2012/03/06 08:12 UT (from CDAW)
angle: 107, velocity: 599 km/s


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


D.3. AIA & GOES
Eruption from AR 11429 (clear signature of eruption is not present in EUV data), associated with M1.0 class flare (N17E40)

D.4. Comment:
less likely the source of disturbance due the location and size of the CME



3. Other Comments

Multiple CMEs, at different time, from the same AR. Interaction between these CMEs are possible.

4. Summary
SW index : 2
Source index: 2
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