21 October 2024
20241020 Week Rotation Today Rotation Week 20241022



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E08S07
(-139",-210")
E15-W03
(18)
1.0 -6.7 -1.1e21
2 E56N63
(-362",834")
E82-E56
(26)
0.6 -0.4 -1.2e20
3 W49N08
(721",72")
W41-W55
(14)
0.2 4.4 2.1e20
4 E11N14
(-178",150")
E13-E08
(5)
0.2 -5.4 -1.3e20
5 W18N54
(175",731")
W12-W22
(10)
0.1 -1.3 -4.1e19

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 21-Oct-2024 23:30 UT .