1 July 2023
20230630 Week Rotation Today Rotation Week 20230702



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E47N30
(-604",440")
E58-E35
(23)
1.4 5.3 1.9e21
2 E55S44
(-552",-679")
E77-E40
(37)
0.9 1.3 4.7e20
3 E37N10
(-568",118")
E43-E31
(12)
0.7 1.2 1.6e20
4 W20S09
(313",-187")
W13-W24
(11)
0.3 -4.8 -2.3e20
5 E50N74
(-196",899")
E48-E43
(5)
0.1 -0.5 -3.2e19

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 1-Jul-2023 23:30 UT .