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| Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
| 1 | E23S12 (-364",-270") |
E46-W09 (55) |
5.6 | -0.3 | -2.5e20 |
| 2 | W26S12 (405",-272") |
W06-W42 (36) |
3.2 | -0.5 | -2.6e20 |
| 3 | W42N69 (225",856") |
E12-W78 (90) |
1.7 | 1.1 | 7.9e20 |
| 4 | E40S55 (-346",-808") |
E49-E22 (27) |
0.4 | -0.5 | -9.8e19 |
| 5 | E58N67 (-313",850") |
E73-E66 (7) |
0.4 | 0.7 | 1.4e20 |
| 6 | W33S68 (190",-900") |
W16-W52 (36) |
0.1 | -0.5 | -4.4e19 |
| 7 | W52S57 (400",-819") |
W44-W64 (20) |
0.1 | -0.7 | -3.8e19 |
| 8 | W19N12 (300",119") |
W17-W21 (4) |
0.1 | -1.1 | -1.1e19 |
|
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-Jul-2020 19:00 UT . |
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