8 October 2023
20231007 Week Rotation Today Rotation Week 20231009



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W11S18
(176",-397")
E08-W29
(37)
4.0 -6.3 -4.3e21
2 W13N56
(122",735")
E23-W31
(54)
2.3 -0.0 -1.2e19
3 W37S20
(541",-408")
W33-W39
(6)
0.1 -7.5 -1.7e20
4 W41N58
(333",771")
W40-W46
(6)
0.1 -1.7 -3.3e19
5 E35N58
(-287",769")
E38-E32
(6)
0.0 -2.1 -2.3e19

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 8-Oct-2023 23:30 UT .