3 August 2023
20230802 Week Rotation Today Rotation Week 20230804



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E26S46
(-284",-739")
E43-E12
(31)
1.1 2.6 8.0e20
2 W40N33
(518",444")
W33-W48
(15)
0.2 1.0 4.6e19
3 E00N48
(-4",639")
E04-W03
(7)
0.1 -2.0 -4.4e19
4 W41N37
(498",515")
W39-W45
(6)
0.1 2.0 3.5e19
5 E24N62
(-180",787")
E29-E17
(12)
0.1 -0.4 -8.6e18
6 W31N60
(245",775")
W27-W35
(8)
0.0 -0.8 -1.1e19

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 3-Aug-2023 23:30 UT .