27 April 2024
20240426 Week Rotation Today Rotation Week 20240428



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E07N44
(-84",711")
E31-W50
(81)
5.6 -2.0 -2.6e21
2 W36S37
(448",-518")
W26-W45
(19)
0.8 3.1 5.2e20
3 W09N13
(153",283")
W06-W13
(7)
0.1 -1.9 -3.3e19
4 E23S24
(-343",-331")
E28-E19
(9)
0.1 -6.8 -1.1e20
5 E16S18
(-243",-229")
E17-E14
(3)
0.0 -7.4 -5.4e19

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 27-Apr-2024 23:30 UT .