3 December 2023
20231202 Week Rotation Today Rotation Week 20231204



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W25S13
(396",-221")
W01-W39
(38)
6.7 -3.7 -4.1e21
2 W39N42
(459",645")
W38-W40
(2)
0.1 -7.1 -1.1e20
3 W56N60
(403",839")
W51-W64
(13)
0.1 -1.3 -3.7e19

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-Dec-2023 20:30 UT .