24 September 2022
20220923 Week Rotation Today Rotation Week 20220925



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W20S43
(242",-729")
E26-W41
(67)
7.3 -1.7 -3.2e21
2 E47N26
(-633",351")
E55-E34
(21)
1.9 1.2 5.3e20
3 E64N04
(-858",21")
E79-E53
(26)
0.7 0.9 2.1e20
4 W09S18
(147",-406")
W05-W13
(8)
0.2 -2.0 -7.8e19
5 W13N47
(143",615")
W08-W18
(10)
0.1 -0.9 -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 24-Sep-2022 23:30 UT .