17 August 2024
20240816 Week Rotation Today Rotation Week 20240818



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W22S44
(253",-727")
W03-W37
(34)
2.4 2.0 1.3e21
2 W48N46
(493",621")
W29-W64
(35)
1.4 -1.9 -7.6e20
3 E06S54
(-58",-827")
E13-W02
(15)
0.7 0.5 1.1e20
4 E17N18
(-265",192")
E23-E12
(11)
0.5 2.9 2.3e20
5 W14N65
(94",809")
W02-W24
(22)
0.2 -0.9 -6.9e19
6 E14N05
(-221",-22")
1.6e03
(0.1)
6.7 -2.9 -4.6e19
7 W24N61
(191",772")
W18-W29
(11)
0.1 -1.9 -4.6e19

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 17-Aug-2024 23:30 UT .