12901
12903
12904
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Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
1 | E27S02 (-444",-36") |
E45-W08 (53) |
4.4 | -0.2 | -1.2e20 |
2 | E21N65 (-150",884") |
E57-W49 (106) |
1.9 | 0.8 | 5.9e20 |
3 | E47S35 (-578",-562") |
E64-E32 (32) |
0.8 | -1.2 | -2.5e20 |
4 | E27S20 (-422",-326") |
E31-E24 (7) |
0.2 | -0.9 | -2.5e19 |
5 | W22S74 (96",-938") |
W07-W35 (28) |
0.1 | -0.5 | -3.9e19 |
6 | E27N19 (-414",328") |
E29-E24 (5) |
0.1 | -0.6 | -1.0e19 |
7 | E26N43 (-316",664") |
E31-E21 (10) |
0.1 | -1.1 | -1.6e19 |
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 9-Dec-2021 20:30 UT . |