12816
12818
12819
12820
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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | E17N13 (-275",294") |
E59-W40 (99) |
13.9 | 0.1 | 3.0e20 |
2 | W28N55 (257",816") |
96 (1.3e05) |
0.6 | 3.4 | 4.4e21 |
3 | E25S74 (-110",-896") |
E78-W54 (132) |
0.8 | -1.2 | -4.4e20 |
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 25-Apr-2021 19:30 UT . |