Note on tracking Sun-Earth connection event

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ICME

1.1.Catalog
# Identified in ICME catalogs: Richardson & Cane List
RC Catalog
Disturbance start time: 2011/09/17 03:43 UT
Ejecta start time: 2011/09/17 14:00 UT
Ejecta end time: 2011/09/18 06:00 UT
dv= 70 km/s, v = 430 km/s, vmax = 590 km/s
Bmax (nT): 11
Dst: -72
Suggested source CME: 2011/09/13 22:10
V_transit: 540 km/s

1.2.Comments
Overall ICME quality index: 2
ICME type: SH +MC
ICME signatures: rotation of Bz (not very smooth)
smoothly decreasing sw velocity
lower proton temperature than expected
low plasma beta


Based on 590 km/s -> search window 70.4331 hrs or 2.93471 days -> 2011/09/14 05:17:00.672

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2011/09/14 00:00 UT, Partial Halo CME (from CDAW)
angle: 242, velocity: 408 km/s


A.2. STEREO:
Major CME in both COR2-A and COR2-B. Frontside moving CME. (CME appeared in the FOV of COR2 on 2011/09/13 at ~23:00 UT)


A.3. AIA & GOES
Eruption from AR 11289 (~N15W08), not associated with any major flare (onset 2011/09/13 ~21:59 UT).

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



3. Other Comments

4. Summary
SW index : 2
Source index: 1
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