12871
12872
12877
12878
12873
12874
12875
12876
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| Today's Coronal Hole Properties | |||||
CHIMERA Number |
Centroid [Heliocentric] |
Width [°] |
Area [%] |
< B > [G] |
< Φ > [Mx] |
| 1 | W17N63 (127",796") |
E74-W61 (135) |
7.0 | 1.0 | 1.9e21 |
| 2 | W23N00 (367",-97") |
W02-W40 (38) |
3.1 | -0.2 | -8.6e19 |
| 3 | E32N06 (-500",4") |
E39-E24 (15) |
1.9 | -0.0 | -1.1e19 |
| 4 | E41S19 (-600",-389") |
E48-E32 (16) |
0.4 | -0.5 | -4.7e19 |
| 5 | W14N07 (238",4") |
W12-W17 (5) |
0.1 | -1.2 | -1.7e19 |
| 6 | E09N03 (-142",-68") |
E10-E05 (5) |
0.1 | -1.1 | -1.0e19 |
|
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 27-Sep-2021 23:30 UT . |
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