6 February 2024
20240205 Week Rotation Today Rotation Week 20240207



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E29S54
(-276",-732")
E69-W16
(85)
3.4 0.7 6.2e20
2 W05S17
(86",-181")
E02-W12
(14)
0.3 -83.8 -4.3e21
3 W26S52
(262",-706")
W22-W28
(6)
0.1 -0.6 -1.8e19
4 W31S36
(400",-498")
W27-W35
(8)
0.1 2.8 4.8e19
5 W09S44
(112",-598")
W07-W11
(4)
0.0 -3.4 -2.4e19

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 6-Feb-2024 20:30 UT .