Note on tracking Sun-Earth connection event

ICME Event: 2012/02/16

Observer: Jie Zhang on 2018/11/26

1. ICME
  1.1. Catalog
     #  Richardson & Cane catelog
      Disturbance start time: 2012/02/16 07:00 UT
      Ejecta      Start time: 2012/02/16 14:00 UT
      Ejecta      End   time: 2012/02/18 00:00 UT
      dv = 20 km/s, v = 320 km/s, vmax= 380 km/s
      MC index:     1
      Dst:        -22 nT
      Suggested source CME: No
      V_transit:  N/A
      
  1.2. SW plots
      Overall ICME quality index: 3
      SW type: ejecta
      ICME signatures: irregular Bz changes, but maximum B is only 7 nT 
      Others ICME signature: not obvious
  
      Search window:
      Upper bound: Disturbance speed 380 km/s: 110 hrs: > 2012/02/11 17 UT
      Lower bound: Transit speed < 700 km/s:  : 60 hrs  < 2012/02/14 02 uT.   

2. CME   
   2.1, A, Candidate A
     A.1. LASCO  
      # No halo CME in the search window

     A.2. STEREO
       #COR2 A/B:
          No sizeable front-side CME seen in the search window
         
     A.3. AIA & GOES
       N/A
	  
	  
     A.4. Comment
          No source found


   2.2. Comment
        No Earth impact CME found. It is possible that the ICME identified in the RC catalog is not a true ICME. An over-identification event


3. Other Comments


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