25 April 2024
20240424 Week Rotation Today Rotation Week 20240426



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E37N42
(-429",685")
E38-W13
(51)
4.8 -1.7 -2.4e21
2 W09S37
(113",-514")
E13-W20
(33)
1.7 4.8 1.5e21
3 W32S25
(459",-349")
W29-W35
(6)
0.1 1.9 4.1e19
4 W31S14
(474",-173")
W28-W33
(5)
0.1 14.3 1.9e20
5 W07N04
(115",142")
W05-W08
(3)
0.0 -1.3 -9.6e18

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 25-Apr-2024 23:30 UT .