16 August 2024
20240815 Week Rotation Today Rotation Week 20240817



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W37N55
(325",725")
E33-W57
(90)
6.2 -1.4 -2.4e21
2 W07S46
(78",-757")
E22-W27
(49)
3.7 1.8 1.7e21
3 E35N22
(-510",262")
E54-E22
(32)
1.2 4.5 1.0e21

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 16-Aug-2024 23:30 UT .