sun2earth

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: 2011/10/30 10:01 UT
Ejecta start time: 2011/10/31 01:00 UT
Ejecta end time: 2011/10/31 15:00 UT
dv= 30 km/s, v = 410 km/s, vmax = 420 km/s
Bmax (nT): 6
Dst: -29
Suggested source CME:
V_transit: - km/s

1.2.Comments
Overall ICME quality index: 2
ICME type: SH+EJ
ICME signatures: Magnetic field greater than 10 nT
rotation of Bz
smoothly decreasing św velocity
low proton temperature
low plasma beta

Based on 420 km/s -> search window 98.9418 hrs or 4.12257 days -> 2011/10/26 07:04:29.531

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2011/10/26 10:00 UT, partial halo (from CDAW)
angle: 158, velocity: 270 km/s

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

A.3. AIA & GOES
Filament eruption from ~N19W23, not associated with any major flare (onset ~08:15)

A.4. Comment:
Likely the source of disturbance

2.1. B. Candidate B
B.1. LASCO:
#CME 2011/10/27 12:00 UT, halo (from CDAW)
angle: 360, velocity: 570 km/s

B.2. STEREO:
Major CME in both COR2-A and COR2-B. Frontside moving CME.

B.3. AIA & GOES
Filament eruption from ~N26E13, not associated with any major flare (onset ~09:00)

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

2.1. C. Candidate C
C.1. LASCO:
#CME 2011/10/28 22:36 UT, (not in from CDAW)
angle: , velocity: km/s

C.2. STEREO:
Moderate CME in both COR2-A and COR2-B. Frontside moving CME.

C.3. AIA & GOES
Eruption from AR 11333 (~N11E03), not associated with any major flare

C.4. Comment:
less likely the source of disturbance due to the time of eruption and initial propagation velocity

3. Other Comments
Candidate B is one of the possible candidates for disturbance on 2011/11/01

4. Summary
SW index : 2
Source index: 2
Overall index: 2
Filament: Yes
WDA: N/A

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