2 August 2024
20240801 Week Rotation Today Rotation Week 20240803



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E26S39
(-319",-662")
E34-E18
(16)
0.5 -1.6 -1.9e20
2 W33N66
(208",831")
W12-W43
(31)
0.3 -1.0 -1.2e20
3 E10S13
(-160",-307")
E14-E02
(12)
0.3 -17.6 -7.9e20
4 E12N52
(-118",682")
E19-E03
(16)
0.2 -1.2 -5.1e19
5 W35S44
(393",-716")
W24-W42
(18)
0.2 1.3 5.9e19
6 E01N39
(-19",520")
E06-W05
(11)
0.1 6.5 1.2e20
7 E14S25
(-204",-486")
E15-E12
(3)
0.1 -31.0 -5.6e20
8 E61N22
(-763",312")
E64-E56
(8)
0.1 6.5 1.4e20

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 2-Aug-2024 23:30 UT .