Note on tracking Sun-Earth connection event ICME Event: 2013/05/25 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: 2013/05/25 20:00 UT Ejecta start time: 2013/05/25 23:00 UT Ejecta End time: 2013/05/26 22:00 UT dv = 140 km/s, v = 660 km/s, vmax= 750 km/s MC index: 0 Dst: -47 nT Suggested source CME: V_transit: km/s 1.2. SW Plots Overall ICME quality index: 2 SW type: EJ+SH ICME signatures: Bmax: 12.3 Smoothly changing Bz for some part. Other ICME signatures: decreasing velocity, low proton temperature, and low plasma beta Peculiar behavior: magnetic field didn't increase, plasma density was almost same. Search Window: Upper bound: Disturbance speed 660 km/s: 63 hrs: Lower bound: Transit speed < 800 km/s: 52 hrs < 2. CME 2.1. A. Candidate A A.1. LASCO: #CME 2013/05/20 at 05:24 UT, partial halo (from CDAW) major CME moving NE at a linear speed of 334 km/s A.2. STEREO: Not moving in the front side. A.3. AIA and GOES A.4. Comment: not the source due to the direction of the CME. 2.2. B. Candidate B B.1. LASCO: #CME 2013/05/20 at 11:48 UT, partial halo (from CDAW) major CME moving NW at a linear speed of 232 km/s B.2. STEREO: Not moving in the front side. B.3. AIA and GOES B.4. Comment: not the source due to the direction of the CME. 2.2. C. Candidate C C.1. LASCO: #CME 2013/05/21 at 02:24 UT, partial halo (from CDAW) CME moving southward at a linear speed of 562 km/s C.2. STEREO: Not moving in the front side. C.3. AIA and GOES C.4. Comment: not the source due to the direction of the CME. 2.2. D. Candidate D D.1. LASCO: #CME 2013/05/22 at 08:48 UT, partial halo (from CDAW) Major CME moving NW at a linear speed of 687 km/s D.2. STEREO: Not moving in the front side. D.3. AIA and GOES D.4. Comment: not the source due to the direction of the CME. 2.2. E. Candidate E E.1. LASCO: #CME 2013/05/22 at 13:25 UT, halo (from CDAW) Major CME 1466 km/s E.2. STEREO: partial halo in both COR2-A and COR2-B E.3. AIA and GOES DE.4. Comment: not the source due to the velocity of the CME. 2.2. E. Candidate E E.1. LASCO: #CME 2013/05/23 at 16:48 UT, partial halo (from CDAW) CME moving with 266 km/s E.2. STEREO: not distinguishable in COR2-A and COR2-B E.3. AIA and GOES DE.4. Comment: 3. Other Comments source and related CME is not identifiable 4. Summary SW index 2 Source index 3 Overall index 3.