4 May 2024
20240503 Week Rotation Today Rotation Week 20240505



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W43N15
(631",293")
W29-W56
(27)
1.4 4.3 1.4e21
2 W26S14
(403",-173")
W20-W34
(14)
0.7 7.5 9.0e20
3 E56N32
(-670",529")
E60-E47
(13)
0.3 2.5 2.5e20
4 W06N58
(55",837")
E04-W13
(17)
0.2 -0.8 -5.9e19
5 E64S35
(-696",-528")
E79-E55
(24)
0.2 -1.9 -1.4e20
6 W15S28
(225",-387")
W14-W17
(3)
0.0 8.7 5.3e19

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 4-May-2024 23:30 UT .