1997-DEC-20
<P>
Comments:
        Bright blip on southwest limb at 06:33 UT, followed
by a CME.  The CME is visible until 07:15 UT.
Darkening on norhtwest limb starting at 20:11 UT, corresponds to
C2 halo observed by LASCO one hour later.  Dark ejection can be 
seen in the difference movie, at 20:11 UT.  Rough speed
of ejection is 400 km.sec.