22 September 2024
20240921 Week Rotation Today Rotation Week 20240923



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E51N60
(-374",782")
E74-E52
(22)
1.1 -1.2 -4.8e20
2 W18N05
(303",-24")
W05-W30
(25)
1.1 6.9 1.2e21
3 W03N26
(38",308")
E01-W05
(6)
0.1 -2.0 -2.8e19
4 E33N01
(-522",-90")
E36-E31
(5)
0.1 -3.7 -5.6e19

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-Sep-2024 23:30 UT .