4 November 2021
20211103 Week Rotation Today Rotation Week 20211105



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E08S02
(-140",-100")
E26-W13
(39)
4.2 0.3 1.9e20
2 E42S07
(-649",-166")
E59-E26
(33)
1.6 0.3 1.1e20
3 E18N73
(-86",905")
E47-W54
(101)
1.0 1.2 5.4e20
4 E19S11
(-316",-247")
E24-E15
(9)
0.2 0.8 2.7e19
5 E40N08
(-615",78")
E42-E36
(6)
0.2 -1.1 -3.8e19
6 E43N24
(-612",342")
E49-E38
(11)
0.2 -0.9 -3.4e19

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 4-Nov-2021 20:30 UT .