18 June 2024
20240617 Week Rotation Today Rotation Week 20240619



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E06N50
(-62",708")
E39-W23
(62)
5.6 -3.9 -5.0e21
2 E25S40
(-304",-625")
E44-E03
(41)
1.4 2.1 6.7e20
3 E12S58
(-109",-813")
E45-W18
(63)
1.0 0.8 2.5e20
4 E26S13
(-409",-234")
E33-E20
(13)
0.3 1.2 7.0e19
5 W04S37
(50",-585")
E01-W07
(8)
0.1 7.9 1.5e20

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 18-Jun-2024 23:30 UT .