19981216.174449

December 16, 1998

19981216.174449_mk4

Center =195.52+/-1.44 degrees PA (SW quadrant) (red radial line)	Maximum height = 1.26+/-0.02 Rsun
Width (at 1.20 Rsun) = 8.87+/-1.38 degrees latitude (measured between edges -- vertical dashed lines at inflection points)	Width (at 1.23 Rsun) = 6.62+/-1.50 degrees latitude
Cavity depletion, equatorward (1.20 Rsun) = 0.16+/-0.025 (ratio of red to blue dashed line)	Cavity depletion, equatorward (at 1.23 Rsun) = 0.14+/-0.029 (ratio of red to blue dashed line)
Cavity depletion, poleward (1.20 Rsun) = 0.24+/-0.036 (ratio of green to blue dashed line) Minimum intensity in cavity (1.20 Rsun) = 2.6e-07+/-3.1e-09 (Bsun) (blue dashed lines);	Cavity depletion, poleward (1.23 Rsun) = 0.23+/-0.035 (ratio of green to blue dashed line) Minimum intensity in cavity (1.23 Rsun) = 2.4e-07+/-4.4e-09 (Bsun) (blue dashed lines);
Slope at equatorward cavity edge (1.20 Rsun) = 1.2e-08+/-5.1e-09 (Bsun/degree)	Slope at equatorward cavity edge (1.23 Rsun) = 1.5e-08+/-4.7e-09 (Bsun/degree)
Slope at poleward cavity edge (1.20 Rsun) = -1.8e-08+/-7.4e-09 (Bsun/degree)	Slope at poleward cavity edge (1.23 Rsun) = -1.6e-08+/-4.7e-09 (Bsun/degree)

length lower limit = 8 days visible in white light at limb December 12; -13; -14; -15*; -16; -17; -18; -19 (CME!);
Also visibile Feb 4-5 1999
Evolution comments = PCF-S which erupts Dec 19 -- visible in Mk4, but not great quality. Also visible Feb 4-5 1999.

Neutral line orientation at the limb =
CME/dimmings association = CME December 19; prominence eruption on December 19;
Active region association = N/A
Filament/FC association = PCF-S; PCF
Other comments: N/A
Filament - visible in white light
Necking - straight up and down 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)
BACK TO TOP