LASCO images severely degraded following the X18 proton flare from AR 0486 2003/10/28 Bright sungrazing comet visible in C3 and C2 images from 2003/10/27
05:30 UT N West Ragged loop front disintegrates through C2 08:30 UT W Limb Wide bright loop front with cavity and much gusty outflow 09:30 UT S East Faint ragged front fades through C2 12:54 UT N West Fairly bright amorphous loop front spans close to W limb. EIT prominence eruption 14:06 UT E Limb Narrow ragged front 20:06 UT N West Fairly bright amorphous loop front spans close to W limb, similar to 12:54 event
02:30 UT N West Narrow spray 06:30 UT N West Fairly faint spray-like front 06:54 UT S East Narrow spray-like front, very faint 09:30 UT E Limb Bright spray like front with cavity 10:54 UT HALO The 'mother of all halos', bright loop front in SE is extremely bright full halo CME by 11:30 with much prolonged gusty outflow around most of occultor. X17.2 X-ray proton flare AR 0486 S20E10. Subsequent LASCO images severely degraded by ongoing proton storm