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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | E22S19 (-345",-278") |
E50-W15 (65) |
14.0 | -0.6 | -2.5e21 |
2 | W42N61 (317",872") |
W21-W59 (38) |
0.8 | 1.0 | 2.4e21 |
3 | E34S75 (-144",-930") |
E67-E39 (28) |
0.1 | -1.0 | -4.8e20 |
4 | E54N06 (-790",128") |
E57-E51 (6) |
0.1 | -1.5 | -1.4e20 |
5 | E13N25 (-204",453") |
E16-E11 (5) |
0.1 | -1.2 | -2.2e19 |
6 | E29S43 (-348",-639") |
E33-E26 (7) |
0.1 | 2.2 | 6.5e19 |
7 | W30N29 (431",517") |
W28-W33 (5) |
0.0 | -1.7 | -3.5e19 |
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 31-Dec-2018 20:30 UT . |