27 May 2024
20240526 Week Rotation Today Rotation Week 20240528



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22N17
(-344",289")
E26-E17
(9)
0.3 33.2 1.7e21
2 W45S41
(501",-615")
W40-W52
(12)
0.2 3.4 2.0e20
3 W36N11
(551",202")
W33-W39
(6)
0.2 0.5 2.1e19
4 W21S18
(328",-279")
W19-W24
(5)
0.1 -3.2 -4.2e19

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 27-May-2024 23:30 UT .