Note on tracking Sun-Earth connection event

ICME Event: 2013/03/20

Observer: Suman Dhakal on 2019/05 (part 1);

1. ICME
  1.1. Catalog
	# Identified in ICME catalogs: Richardson & Can List
	RC catalog:
	Disturbance start time: 2013/03/20 17:00 UT
	Ejecta      start time:	2013/03/20 18:00 UT
	Ejecta      End   time:	2013/03/20 22:00 UT
	dv =  110 km/s, v =  520 km/s, vmax=  640 km/s
      	MC index: 1    
	Dst:       -39  nT
     	Suggested source CME: 
     	V_transit:   km/s
      
  1.2. SW Plots
	Overall ICME quality index: 3 
	SW type: EJ+SH
	ICME signatures: Bmax: 9.9 nT
							Smoothly changing Bz.
	Other ICME signatures: decreasing velocity, low density, low proton temperature, and low plasma beta
                     
	Peculiar behavior: Density was relatively high.
				proton temperature and plasma beta jumped in the middle.
				
                         
	Search Window:
	Upper bound: Disturbance speed 520 km/s: 80 hrs:
	Lower bound: Transit speed < 700 km/s: 60 hrs <

2. CME
   2.1. A. Candidate A
	A.1. LASCO:
 		#CME 2013/03/15 at 07:12 UT, halo (from CDAW)
		Major CME moving with 1063 km/s
		

	A.2. STEREO:
		Direction of CME sugeest that it was moving front side of the Sun. Halo CME in COR2-A.

	A.3. AIA and GOES
		corresponding to X class flare, peaked at 2013/03/15 06:58 UT
		Eruption from decaying AR 11692, located ~ N10E10.
		same region as of candidate A.
		
	A.4. Comment:
		unlikely the source, as the velocity was very high.

   2.2. B. Candidate B
	B.1. LASCO:
 		#CME 2013/03/16 at 14:48 UT, partial halo (from CDAW)
		Major CME moving with 786 km/s
		

	B.2. STEREO:
		Direction of CME sugeest that it was moving front side of the Sun. 

	B.3. AIA and GOES
		corresponding to B class flare, peaked at 2013/03/16 14:36 UT.
		Filament eruption around N30 W45.
		
	B.4. Comment:
		unlikely the source, as the velocity was very high and the direction is 
		toward northern pole.


  2.2. C. Candidate C
	C.1. LASCO:
 		#CME 2013/03/17 at 23:39 UT, partial halo (from CDAW, observed in C3)
		Major CME moving with 399 km/s. data gap in C2
		

	C.2. STEREO:
		Direction of CME sugeest that it was moving front side of the Sun. 
		Major partial halo CME in both COR2-A and COR2-B. It started around 16:00 UT in STEREO. 

	C.3. AIA and GOES
		Very big filament eruption around 13:30 UT, not associated with any AR. 
		
	C.4. Comment:
		Likely the source, considering the eruption of huge magnetic structure.

 

3. Other Comments
	Candidate C is the possible source of disturbance on 2013/03/20, in C2 CME was observed at 15:58 (seeds C2).

4. Summary
  
  SW index 3
    Source index 1  
    Overall index 3.