20000330.172114

March 30, 2000 (West limb)

20000330.172114_mk4

Center =205.94+/-0.74 degrees PA (SW quadrant) (red radial line)	Maximum height = 1.45+/-0.04 Rsun
Width (at 1.20 Rsun) = 14.89+/-0.96 degrees latitude (measured between edges -- vertical dashed lines at inflection points)	Width (at 1.32 Rsun) = 11.69+/-0.52 degrees latitude
Cavity depletion, equatorward (1.20 Rsun) = 0.11+/-0.023 (ratio of red to blue dashed line)	Cavity depletion, equatorward (at 1.32 Rsun) = 0.08+/-0.018 (ratio of red to blue dashed line)
Cavity depletion, poleward (1.20 Rsun) = 0.19+/-0.016 (ratio of green to blue dashed line) Minimum intensity in cavity (1.20 Rsun) = 4.2e-07+/-4.2e-09 (Bsun) (blue dashed lines);	Cavity depletion, poleward (1.32 Rsun) = 0.17+/-0.017 (ratio of green to blue dashed line) Minimum intensity in cavity (1.32 Rsun) = 2.0e-07+/-2.0e-09 (Bsun) (blue dashed lines);
Slope at equatorward cavity edge (1.20 Rsun) = 2.0e-08+/-8.4e-09 (Bsun/degree)	Slope at equatorward cavity edge (1.32 Rsun) = 5.3e-09+/-4.1e-09 (Bsun/degree)
Slope at poleward cavity edge (1.20 Rsun) = -1.4e-08+/-8.4e-09 (Bsun/degree)	Slope at poleward cavity edge (1.32 Rsun) = -8.4e-09+/-4.1e-09 (Bsun/degree)

length lower limit = 2 days visible in white light at limb March 27*; March 30;
Recurrence =West limb March 27*; March 30; East limb April 13; Also visible Sep-Dec 1999
Evolution comments = Part of 8 month supersystem -- but other limb from other Feb-Apr piece. Also visible March 14,16... West limb -- many other days. Possible eruption April 15 -- but no Mk4 data -- and may be too far from pole. System probably exist longer than shown here. At least two Mk4 eruptions, Feb 5 and Mar 3.

Neutral line orientation at the limb =
CME/dimmings association = CME March 3 (also Feb 5); prominence eruption on March 3;
Active region association = N/A
Filament/FC association = PCF-S; polar crown filament
Other comments: N/A
Filament - visible in white light
Necking - no neck

Cavity list (e.g. Tables 2 + 3)
Full list of cavity days observed
List of best cavity days (SET 1) observed (e.g. Table 1)
CMEs associated with cavities (e.g. Tables 7 + 8)
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