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| Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
| 1 | E10S68 (-66",-847") |
E61-W77 (138) |
4.6 | -0.9 | -4.8e21 |
| 2 | W01N18 (17",412") |
E11-W12 (23) |
2.5 | -0.4 | -2.5e20 |
| 3 | E08S15 (-136",-127") |
E17-W06 (23) |
1.6 | -0.1 | -3.1e19 |
| 4 | E28N19 (-432",412") |
E39-E14 (25) |
1.4 | 0.2 | 1.4e20 |
| 5 | W13N65 (93",921") |
E37-W26 (63) |
0.7 | 1.0 | 2.4e21 |
| 6 | E17N32 (-238",603") |
E22-E12 (10) |
0.2 | 1.2 | 1.0e20 |
| 7 | W18N09 (296",267") |
W16-W21 (5) |
0.1 | -0.8 | -2.5e19 |
| 8 | E39S12 (-595",-103") |
E41-E35 (6) |
0.0 | -0.8 | -1.4e19 |
| 9 | W41S43 (463",-591") |
W38-W43 (5) |
0.0 | -0.6 | -1.6e19 |
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Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA. The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476. An extensive copy of coronal hole properties are available at: solarmonitor.org/data. The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 21-Feb-2020 20:30 UT . |
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