12907
12908
12909
12910
12911
12912
12913
12914
12915
12916
12905
12906
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| Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
| 1 | E31N49 (-329",758") |
E50-W16 (66) |
6.3 | 0.8 | 1.4e21 |
| 2 | W52N04 (763",91") |
W41-W64 (23) |
1.3 | -0.5 | -1.6e20 |
| 3 | W21S78 (75",-947") |
E10-W49 (59) |
0.2 | -0.9 | -9.4e19 |
| 4 | W39N10 (602",187") |
W33-W43 (10) |
0.1 | -0.9 | -2.2e19 |
| 5 | W05N46 (58",729") |
W02-W09 (7) |
0.0 | -0.5 | -4.8e18 |
|
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 22-Dec-2021 20:30 UT . |
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