8 May 2023
20230507 Week Rotation Today Rotation Week 20230509



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W39S50
(384",-702")
W06-W84
(78)
1.4 1.1 4.0e20
2 E22N33
(-304",556")
E33-E07
(26)
0.6 6.4 8.3e20
3 W10N26
(152",467")
E06-W17
(23)
0.6 6.9 7.6e20
4 W35S65
(228",-842")
W26-W44
(18)
0.1 -0.7 -2.5e19
5 W13S53
(129",-725")
W12-W14
(2)
0.0 3.2 2.8e19

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 8-May-2023 23:30 UT .