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: 2012/07/08 08:00 UT
Ejecta start time: 2012/07/09 00:00 UT
Ejecta end time: 2012/07/09 14:00 UT
dv= 20 km/s, v = 410 km/s, vmax = 450 km/s
Bmax (nT): 12
Dst: -78
Suggested source CME: 2012/07/04 17:24
V_transit: 480 km/s

1.2.Comments
Overall ICME quality index: 2
SW type: EJ
ICME signatures: jump in magnetic field
slight increase in sw velocity


Based on 450 km/s -> search window 92.3457 hrs or 3.84774 days -> 2012/07/04 11:39:15.563

2. CME
2.3. A. Candidate A
A.1. LASCO:
#CME 2012/07/04 17:24 UT, Halo CME (from CDAW)
angle: 360; velocity 662 km/s

A.2. STEREO:
SEEDS data is not available. Frontside moving CME (COR1)

A.3. AIA & GOES
Associated with M1.8 class flare from AR 11513 (16:33 UT; N14W34)

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

2.1. B. Candidate B
B.1. LASCO:
#CME 2012/07/04 05:12 UT (from CDAW)
angle: 110, velocity: 381 km/s


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


B.3. AIA & GOES
Associated with M2.3 class flare from AR 11515 (at 04:28 UT; S17W18).

B.4. Comment:
Less likely to be related to the disturbance, the time of eruption is outside of the search window.


2.2. C. Candidate C
C.1. LASCO:
#CME 2012/07/04 12:48
angle: 111; velocity: 551 km/s

C.2. STEREO:
Frontside moving CME (COR1), mostly southward

C.3. AIA & GOES
Associated with M2.3 flare from AR 11515 (12:07 UT, S17W22)

C.4. Comment:

Less likely to be related to the disturbance due to the propagation direction of CME.

3. Other Comments

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