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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | E17S43 (-199",-598") |
E52-W24 (76) |
5.4 | 2.6 | 2.8e21 |
2 | E20N09 (-328",217") |
E31-E07 (24) |
1.5 | 1.6 | 4.0e20 |
3 | E20S06 (-332",-42") |
E23-E17 (6) |
0.2 | 3.2 | 1.2e20 |
4 | W02N05 (31",146") |
E01-W04 (5) |
0.1 | -1.1 | -2.3e19 |
5 | W45N41 (510",659") |
W40-W47 (7) |
0.1 | -0.5 | -1.6e19 |
6 | W57N35 (651",580") |
W55-W60 (5) |
0.1 | -1.4 | -2.9e19 |
7 | W40S66 (254",-845") |
W36-W46 (10) |
0.1 | -1.0 | -2.1e19 |
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 2-May-2023 23:30 UT . |