1 May 2024
20240430 Week Rotation Today Rotation Week 20240502



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W08N13
(136",280")
E08-W19
(27)
1.5 4.3 1.0e21
2 E17S13
(-267",-152")
E21-E10
(11)
1.0 5.7 9.2e20
3 W39N56
(330",820")
W28-W48
(20)
0.4 -0.5 -7.5e19
4 E08S40
(-107",-566")
E14-W01
(15)
0.4 -1.3 -9.0e19
5 E20N05
(-326",153")
E22-E18
(4)
0.1 5.1 5.1e19

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 1-May-2024 23:30 UT .