3 September 2023
20230902 Week Rotation Today Rotation Week 20230904



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E12N39
(-151",503")
E18-W06
(24)
0.8 -4.5 -6.3e20
2 W13S52
(132",-818")
W02-W19
(17)
0.5 2.0 3.1e20
3 W26N43
(300",570")
W17-W32
(15)
0.5 3.6 3.3e20
4 W14N57
(128",727")
W11-W18
(7)
0.1 -2.0 -2.4e19
5 W30N07
(468",7")
W29-W31
(2)
0.0 -4.6 -2.9e19

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 3-Sep-2023 23:30 UT .