25 May 2024
20240524 Week Rotation Today Rotation Week 20240526



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W27S50
(279",-717")
E17-W39
(56)
3.8 1.8 1.8e21
2 W43N56
(363",795")
W09-W73
(64)
1.5 -0.7 -4.3e20
3 E07S17
(-116",-260")
E12-E02
(10)
0.3 -8.2 -4.0e20
4 E02N20
(-39",339")
E04-W01
(5)
0.1 -1.1 -1.9e19

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 25-May-2024 23:30 UT .