12 October 2023
20231011 Week Rotation Today Rotation Week 20231013



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E09S31
(-130",-578")
E19-W04
(23)
0.7 7.1 9.2e20
2 W01S10
(10",-271")
E03-W04
(7)
0.5 4.2 3.6e20
3 E37S45
(-408",-735")
E55-E19
(36)
0.5 1.6 2.4e20
4 W38N46
(415",634")
W31-W47
(16)
0.2 2.4 1.5e20
5 W59S08
(819",-184")
W54-W66
(12)
0.2 -1.7 -1.3e20
6 W57N06
(799",46")
W55-W59
(4)
0.1 -1.6 -3.7e19

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 12-Oct-2023 23:30 UT .