24 July 2024
20240723 Week Rotation Today Rotation Week 20240725



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W45S58
(359",-828")
W39-W65
(26)
0.3 -0.3 -4.4e19
2 W18N48
(198",645")
W15-W22
(7)
0.1 -0.7 -1.1e19
3 W24N70
(130",861")
W17-W37
(20)
0.0 -0.5 -8.7e18

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 24-Jul-2024 23:30 UT .