21 June 2024
20240620 Week Rotation Today Rotation Week 20240622



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W47N48
(459",691")
W18-W68
(50)
3.1 -2.6 -2.6e21
2 W26S59
(214",-824")
E16-W60
(76)
1.8 0.4 2.6e20
3 W35S33
(458",-537")
W22-W51
(29)
0.9 6.3 1.3e21
4 W14S18
(222",-327")
W01-W20
(19)
0.5 1.2 9.2e19
5 E12N29
(-175",436")
E18-E07
(11)
0.4 -1.6 -1.0e20
6 W39N26
(535",390")
W35-W43
(8)
0.3 -5.9 -4.3e20
7 E40N17
(-583",255")
E45-E32
(13)
0.2 4.6 1.7e20
8 E25N12
(-398",164")
E28-E22
(6)
0.1 2.0 3.2e19
9 E18S20
(-280",-352")
E20-E17
(3)
0.1 -9.5 -9.1e19

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 21-Jun-2024 23:30 UT .