21 March 2024
20240320 Week Rotation Today Rotation Week 20240322



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W00S22
(4",-242")
E19-W19
(38)
3.7 -5.9 -3.4e21
2 W11N55
(105",846")
W03-W17
(14)
0.1 -0.9 -3.8e19
3 E27S32
(-376",-420")
E33-E22
(11)
0.1 -8.2 -2.0e20
4 E32N57
(-278",855")
E39-E26
(13)
0.0 -0.6 -1.0e19
5 W21S11
(334",-75")
W18-W24
(6)
0.0 -3.2 -2.0e19

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-Mar-2024 20:30 UT .