22 March 2022
20220321 Week Rotation Today Rotation Week 20220323



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W01S09
(15",-37")
E33-W45
(78)
11.3 0.8 1.3e21
2 W51S69
(262",-869")
E71-W73
(144)
1.5 -1.0 -6.9e20
3 W42S04
(641",18")
W40-W44
(4)
0.1 -0.6 -1.0e19
4 E24S27
(-346",-339")
E25-E22
(3)
0.1 2.0 2.4e19
5 W16S12
(253",-83")
W14-W17
(3)
0.1 -1.2 -1.0e19

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 22-Mar-2022 20:30 UT .