6 December 2023
20231205 Week Rotation Today Rotation Week 20231207



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E36S39
(-446",-614")
E57-E21
(36)
0.8 1.4 3.0e20
2 E11S28
(-161",-454")
E20-E02
(18)
0.6 8.3 9.2e20
3 W62S20
(805",-338")
W52-W73
(21)
0.5 -2.5 -4.0e20
4 E46S57
(-385",-816")
E55-E37
(18)
0.1 1.8 6.1e19
5 E21N40
(-262",630")
E23-E18
(5)
0.0 -1.5 -1.2e19

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 6-Dec-2023 20:30 UT .