29 February 2024
20240228 Week Rotation Today Rotation Week 20240301



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E26S59
(-222",-765")
E30-E04
(26)
1.4 1.3 5.0e20
2 E40S29
(-547",-387")
E44-E36
(8)
0.3 0.4 2.4e19
3 E05S29
(-67",-353")
E07-E03
(4)
0.1 5.7 4.9e19
4 W66S34
(731",-498")
W67-W65
(-2)
0.0 -1.9 -3.0e19

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 29-Feb-2024 20:30 UT .