4 June 2022
20220603 Week Rotation Today Rotation Week 20220605



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E13N73
(-62",905")
E49-W17
(66)
0.3 0.9 1.6e20
2 E16N27
(-235",439")
E19-E13
(6)
0.1 3.5 4.5e19
3 W22S22
(332",-357")
W20-W26
(6)
0.1 -2.1 -2.3e19

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 4-Jun-2022 23:30 UT .