Note on tracking Sun-Earth connection event

ICME Event: 2011/10/22

Observer: Eleni Nikou on 2019/06

1. ICME
  1.1. Catalog
     # Identified in ICME catalogs: Richardson & Can List
      RC catalog:
      Disturbance start time: 2011/10/22 21:00 UT
      Ejecta      Start time: 2011/10/22 21:00 UT
      Ejecta      End   time: 2011/10/23 16:00 UT
      dv = 0 km/s, v = 290 km/s, vmax= 310 km/s
      MC index:     1
      Dst:        -7 nT
      Suggested source CME: -
      V_transit: -
      
  1.2. Comments
      Overall ICME quality index: 3
      ICME signatures: Bmax: 6.6 nT
               ICME signatures: smooth B, low beta
      
      Disturbance time 290 km/s  -> search window 6 days -> 2011/10/16-17

2. CME
   2.1. A. Candidate A
    A.1. LASCO:    
      #CME 2011/10/17 09:36 UT, faint partial halo CME
           

    A.2 .STEREO: 
           Also seen as a CME in COR2-A and COR2 B (COR2-A after 09:24 UT), slow event
	   Front-side CME

    A.3. AIA & GOES
	   corresponding flare: GOES gives the following two events, 
                                17-Oct-2011 08:24 UT class:  C2.1    AR11324 at N11E66 (location source: Solar Monitor)  
                                17-Oct-2011 09:29 UT class:  C1.8    AR11324 at N11E66 (location source: Solar Monitor) 

    Regarding the flaring, around 09:30 UT it seems that we have brightenings at AR11319, as seen at Jhelioviewer. 

    A.4 Comment:  
	   

3. Other Comments

     It is not clear which is the candidate, both events are poor. 

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