25 June 2023
20230624 Week Rotation Today Rotation Week 20230626



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E31S39
(-378",-625")
E60-E06
(54)
2.1 2.8 1.4e21
2 E38N46
(-404",655")
E49-E25
(24)
0.4 -0.5 -5.2e19
3 W32N39
(388",577")
W26-W40
(14)
0.2 -4.0 -1.7e20
4 W32N03
(502",11")
W28-W37
(9)
0.1 -5.1 -1.4e20
5 W42N04
(627",43")
W40-W44
(4)
0.0 1.7 1.4e19

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 25-Jun-2023 23:30 UT .