1 June 1988 --- Day of Year (DOY): 153

Event Description

Cavity rises slowly in streamer. Loop becomes visible around cavity. Highly structured, loop-shaped (prominence) core appears. Streamer is blown out. Deflections. Solar north is toward the upper left in each image.

Event Properties

Start/Stop Times in SMM Coronagraph Field of View: June 01 3:22 to ~11:21
Central Position Angle: 300 degrees
Width (in degrees): 040
Speed (in km/sec): 218 <--- Cavity
Speed (in km/sec): 144 <--- Core (Prominence)

Detailed information on all SMM mass ejections is available in the SMM Catalogue of Coronal Mass Ejections