Center
=136.17+/-0.90 degrees PA (SE quadrant) (red radial line) | Maximum height = 1.62+/-0.03 Rsun | |
Width (at 1.20 Rsun) =
26.92+/-0.91 degrees latitude (measured between edges -- vertical dashed lines at inflection points)
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Width (at 1.41 Rsun) =
18.52+/-0.90 degrees latitude
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Cavity depletion, equatorward (1.20 Rsun) =
0.40+/-0.012 (ratio of red to blue dashed line)
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Cavity depletion, poleward (1.20 Rsun) =
0.13+/-0.017 (ratio of green to blue dashed line)
Minimum intensity in cavity (1.20 Rsun) =
2.8e-07+/-2.8e-09 (Bsun) (blue dashed lines);
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Slope at equatorward cavity edge (1.20 Rsun) =
-2.8e-08+/-5.5e-09 (Bsun/degree)
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Slope at poleward cavity edge (1.20 Rsun) =
1.3e-08+/-5.5e-09 (Bsun/degree)
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length lower limit = 5 days
visible in white light at limb October 21; -22; -24; -25**; -26 ;
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Recurrence =East limb September 25; -27; West limb October 9; -10; East limb October 21; -22; -24; -25**; -26 ; East limb December 12; -14; West limb December 21; -22; -23; -24; -26; -27***; | |
Evolution comments = Another PCF system, where PCF gets longer and clearer over time. Faintly visible SE Sep 25-27, then SW Oct 9-10, then better visible SE Oct 21-24 and really vis Oct 25-26. No Mk4 Oct 27, and maybe something vis. Oct 28. Associated filament on disk disappears by Oct 29 -- but this is the time of the Halloween storms and all hell has broken loose. around Vis. again on SW limb Nov 7-10 - maybe a partial eruption (EIT) Nov 8. Poss. also recur Nov 20-23.., then prom at East limb Dec 12,14; visible at West limb Dec 21-27 -- getting quite dark and high 26-27 -- but no EIT data after 25 and very limited LASCO data, and no Mk4 data Dec 13, 25, 28:31 |
Neutral line orientation at the limb = | |
CME/dimmings association =
N/A | |
Active region association =
N/A | |
Filament/FC association = e.g. prominence at East limb Oct 26; N/A | |
Other comments:
N/A | |
Filament -
only visible in H-alpha or EUV
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Necking -
bulging neck
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