SEL EVENT # 3900 in NOAA AR 2672
Date: 2017, Aug 23
Start Time 1910 UT; Max Time 1931 UT; End Time 1941 UT
Coordinates: N06E39
Flare type: X-ray flare and Optical flare observed in H-alpha
Additional: Y-shaped ribbon
GOES X-ray Class: C1.2 ( Integrated flux from start to end: 1.7E-03 )
Optical: SF

Below are an MPEG movie for this event, GOES flux plot and data file and several snapshots.