9 February 2022
20220208 Week Rotation Today Rotation Week 20220210



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E17S22
(-261",-267")
E26-E04
(22)
2.8 -5.8 -2.7e21
2 E42S58
(-339",-781")
E51-E65
(-14)
0.7 -0.9 -2.1e20
3 E27N12
(-435",301")
E33-E20
(13)
0.6 -1.1 -1.3e20

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 9-Feb-2022 20:30 UT .