On 18 April 2000, several instruments on SOHO observed a coronal 
mass ejection (CME) associated with the eruption of a long 
filament in the southern hemisphere.  The red-violet is a
LASCO/C2 image of the event, and the UVCS H I Lyman alpha data
(in white) is slightly offset.

The CME has a classical three-part structure with a bright
front, dark cavity and bright threads from the erupting filament. 
UVCS observed the material as it crossed the spectrograph slit.
The CME velocity is used to convert the time sequence into a
spatial image for comparison with the LASCO visible light data.
UVCS also observed lines of C III and O VI.  Doppler shifts
varied from -150 km/s to +130 km/s on small spatial scales.