5 December 2020
20201204 Week Rotation Today Rotation Week 20201206



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E20N13
(-328",210")
E47-W30
(77)
9.3 -0.4 -5.4e20
2 E06N34
(-91",539")
E14-W05
(19)
0.8 -1.0 -1.5e20
3 E18S73
(-90",-932")
E48-W03
(51)
0.2 -0.9 -1.1e20
4 E48N38
(-570",594")
E51-E45
(6)
0.0 -0.4 -4.2e18

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 5-Dec-2020 20:30 UT .