JOP175 Extended Filaments at the Limb Draft received 19 February 2004. SOC added UVCS details & POC 23 February 2004. SCIENTIFIC GOALS: (1) To relate the magnetic field morphology of an erupting filament to the structure observed as the white-light CME; (2) Does the fluxrope exist prior to the eruption? REQUESTED OBSERVATIONS: Target-of-opportunity. Long, non-active region, filament during West limb transit (e.g., polar crown, although any extended filament will suffice) -EIT (304A in CME watch mode, full-frame) -TRACE (195A CME watch mode, framed as 02Jun1998 EIT example) -LASCO synoptic mode -UVCS (C III, O VI and Ly beta) Others? POINTS-OF-CONTACT: St. Cyr, Schrijver, Gurman, J. Raymond SCIENTIFIC RATIONALE: Attached is a partial frame EIT 195 image from the June 2, 1998 eruption of the south polar crown filament eruption. Plunkett et al (2000, SolPhys, 194,371-391) described this event and demonstrated that the "cusp" or concave-out shape above the filament was visible for many hours in EIT before the eruption. The cusp appears to be the concave-outward portion of the form we call a fluxrope in LASCO CMEs. We are aware of a few more of these pre-eruption shapes above filaments, but the EIT temporal resolution (and the geometry?) is typically not sufficient to determine when the cusp appears above the prominence.