7 August 2023
20230806 Week Rotation Today Rotation Week 20230808



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E03N02
(-52",-73")
E11-W08
(19)
1.7 -0.3 -7.0e19
2 W39S44
(432",-712")
W26-W54
(28)
0.7 2.7 6.3e20
3 E22N49
(-229",649")
E23-E19
(4)
0.1 -1.7 -1.9e19
4 E10N47
(-113",624")
E12-E08
(4)
0.0 -0.5 -4.8e18

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 7-Aug-2023 23:30 UT .