17 January 2024
20240116 Week Rotation Today Rotation Week 20240118



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E11N20
(-180",411")
E18-W05
(23)
0.8 13.9 1.8e21
2 W60N10
(837",207")
W48-W70
(22)
0.6 1.0 1.9e20
3 W06S34
(87",-471")
11
(3.6e03)
-4.9 3.4 1.2e20
4 E22S57
(-195",-780")
E25-E19
(6)
0.0 -0.3 -3.8e18

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 17-Jan-2024 20:30 UT .