31 August 2023
20230830 Week Rotation Today Rotation Week 20230901



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E05N43
(-55",554")
E10-W06
(16)
0.7 2.6 3.6e20
2 E32S50
(-323",-786")
E48-E11
(37)
0.7 1.6 3.6e20
3 E47N37
(-558",499")
E54-E34
(20)
0.3 -2.9 -2.1e20
4 W41N27
(555",347")
W37-W44
(7)
0.2 6.2 2.0e20
5 E01N55
(-4",708")
E06-W06
(12)
0.1 -0.6 -1.4e19

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 31-Aug-2023 23:30 UT .