12321
12322
12324
12325
12326
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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | W37S66 (234",-840") |
E81-W57 (138) |
3.0 | -0.9 | -4.8e33 |
2 | E17S21 (-264",-254") |
E26-E01 (25) |
2.0 | 6.1 | 3.0e33 |
3 | W67S35 (716",-520") |
W54-W76 (22) |
0.4 | -1.4 | -1.1e33 |
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 17-Apr-2015 23:35 UT . |