25 July 2024
20240724 Week Rotation Today Rotation Week 20240726



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W32N48
(336",652")
W29-W35
(6)
0.1 -0.4 -5.0e18
2 E71N61
(-426",812")
E75-E70
(5)
0.0 -1.4 -4.0e19

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 25-Jul-2024 23:30 UT .