26 August 2023
20230825 Week Rotation Today Rotation Week 20230827



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E28N26
(-406",323")
E31-E24
(7)
0.1 8.3 2.1e20
2 E30N52
(-291",685")
E34-E25
(9)
0.1 -0.6 -1.5e19
3 W53N01
(757",-61")
W50-W56
(6)
0.1 -1.0 -2.2e19

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 26-Aug-2023 23:30 UT .