sun2earth

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: 2012/02/14 07:00 UT
Ejecta start time: 2012/02/14 21:00 UT
Ejecta end time: 2012/02/16 06:00 UT
dv= 40 km/s, v = 370 km/s, vmax = 400 km/s
MC index: 9
Dst: -67
Suggested source CME:
V_transit: - km/s

1.2.Comments
Overall ICME quality index: 3
ICME type: EJ
ICME signatures: smooth variation of magnetic field
smoothly decreasing (due to expansion) sw speed
low plasma beta

Based on 400 km/s -> search window 144.000 hrs or 6.00000 days -> 2012/02/08 07:00:00.000

2. CME
2.1. A. Candidate A
A.1. LASCO:
#CME 2012/02/10 12:48 UT (not listed in CDAW)
angle: , velocity: km/s

A.2. STEREO:
Moderate CME in both COR2-A and COR2-B, frontside moving CME. Event observed to start around 08:00 UT in STEREO FOV

A.3. AIA & GOES
Filament eruption from ~S19E21, not associated with any major flare. Hard to distinguish in AIA data, but visible in STEREO EUVI data.

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

2.1. B. Candidate B
B.1. LASCO:
#CME 2012/02/10 20:00 UT, Halo CME (from CDAW)
angle: 360, velocity: 533 km/s

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

B.3. AIA & GOES
Filament eruption from ~N35E15, not associated with any major flare.

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

2.1. C. Candidate C
C.1. LASCO:
#CME 2012/02/09 21:17 UT, Halo CME (from CDAW)
angle: 360, velocity: 659 km/s

C.2. STEREO:
partial halo CME in both COR2-A and COR2-B, frontside moving CME

C.3. AIA & GOES
Filament eruption from the eastern limb ~N18E67, not associated with any major flare

C.4. Comment:
Less likely the source of the disturbance due to the location of eruption

3. Other Comments

4. Summary
SW index : 3
Source index: 2
Overall index: 3
Filament: Y
WDA: N/A

comment on CMEs within search window

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