18 November 2022
20221117 Week Rotation Today Rotation Week 20221119



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W04S39
(56",-643")
E27-W33
(60)
7.5 -2.7 -4.1e21
2 E39N26
(-549",394")
E52-E26
(26)
0.8 2.5 4.2e20
3 W17N03
(282",6")
W14-W20
(6)
0.2 -1.0 -2.4e19

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 18-Nov-2022 20:30 UT .