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: 2012/07/21 16:12 UT
Ejecta start time: 2012/07/22 11:00 UT
Ejecta end time: 2012/07/23 16:00 UT
dv= 50 km/s, v = 460 km/s, vmax = 520 km/s
Bmax (nT): 5
Dst: -28
Suggested source CME:
V_transit: - km/s

1.2.Comments
Overall ICME quality index: 3
SW type: SH+EJ
ICME signatures: jump in magnetic field, only at the arrival of shock
jump in sw velocity
low proton temperature (lower than expected temperature)


Based on 520 km/s -> search window 79.9145 hrs or 3.32977 days -> 2012/07/18 08:17:07.719

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2012/07/19 05:24 UT, Halo CME (from CDAW)
angle: 360, velocity: 1631 km/s


A.2. STEREO:
Major CME in both COR2-A and COR2-B. Moving westward.


A.3. AIA & GOES
Associated with M7.7 class flare from AR 11520 (04:17, peaked around 05:58; S13W88)

A.4. Comment:
Possible to cause some disturbance



3. Other Comments

4. Summary
SW index: 3
Source index: 1
Overall index: 3
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