15 October 2022
20221014 Week Rotation Today Rotation Week 20221016



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W04N12
(65",107")
E24-W33
(57)
7.1 0.3 3.2e20
2 E04N46
(-48",624")
E11-W07
(18)
0.5 -1.8 -1.7e20
3 W01N56
(12",736")
E05-W07
(12)
0.1 -0.7 -2.2e19
4 W59N39
(641",564")
W54-W65
(11)
0.1 -1.5 -5.8e19

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 15-Oct-2022 23:30 UT .