26 February 2025
20250225 Week Rotation Today Rotation Week 20250227



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19S37
(258",-491")
E40-W60
(100)
20.0 3.1 1.1e22
2 E14N24
(-209",493")
E18-E07
(11)
0.2 7.4 3.3e20
3 E06S45
(-67",-602")
E10-W00
(10)
0.1 -0.7 -1.9e19
4 W00S18
(4",-181")
E02-W03
(5)
0.1 -1.9 -4.2e19
5 W08S16
(126",-142")
W05-W09
(4)
0.0 -1.6 -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 26-Feb-2025 20:30 UT .