12 December 2022
20221211 Week Rotation Today Rotation Week 20221213



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E09N02
(-149",46")
E35-W20
(55)
3.8 -0.4 -2.1e20
2 E43S37
(-538",-578")
E80-E19
(61)
1.7 -2.4 -1.0e21
3 W23S06
(383",-88")
W21-W26
(5)
0.1 -1.2 -2.0e19
4 W22S01
(368",-3")
W21-W24
(3)
0.1 -2.2 -1.9e19

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 12-Dec-2022 20:30 UT .