19 July 2024
20240718 Week Rotation Today Rotation Week 20240720



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W49N45
(507",625")
W18-W69
(51)
3.1 -2.9 -2.6e21
2 W01S56
(4",-829")
E35-W39
(74)
2.6 0.5 3.7e20
3 E44N47
(-454",646")
E55-E37
(18)
0.1 -2.2 -4.4e19
4 E27N39
(-335",537")
E30-E24
(6)
0.1 1.5 1.7e19

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 19-Jul-2024 23:30 UT .