29 May 2022
20220528 Week Rotation Today Rotation Week 20220530



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W31S72
(146",-898")
E56-W64
(120)
0.9 -0.8 -4.2e20
2 E05N27
(-79",447")
E08-E02
(6)
0.1 7.1 1.2e20
3 E40S03
(-604",-34")
E42-E37
(5)
0.1 -0.7 -9.5e18

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 29-May-2022 23:30 UT .