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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | E11S19 (-171",-295") |
E41-W32 (73) |
10.6 | -0.3 | -8.6e20 |
2 | W25N58 (221",837") |
E04-W32 (36) |
2.2 | 0.6 | 1.8e21 |
3 | E36S63 (-264",-858") |
E66-E46 (20) |
0.7 | -0.6 | -7.7e20 |
4 | E26N67 (-166",906") |
E61-E07 (54) |
0.7 | 1.2 | 2.4e21 |
5 | W31S70 (169",-912") |
E18-W52 (70) |
0.7 | -0.9 | -1.9e21 |
6 | E15N30 (-215",507") |
E20-E07 (13) |
0.2 | -0.9 | -5.4e19 |
7 | W42N04 (650",84") |
W39-W46 (7) |
0.1 | -0.7 | -3.0e19 |
8 | W37N02 (590",49") |
W35-W39 (4) |
0.0 | -1.3 | -2.0e19 |
9 | W10N28 (146",480") |
W07-W12 (5) |
0.0 | 1.7 | 1.9e19 |
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 19-Dec-2019 20:30 UT . |