24 April 2024
20240423 Week Rotation Today Rotation Week 20240425



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E46N24
(-633",436")
E52-E38
(14)
1.8 -1.8 -8.0e20
2 E17S39
(-216",-540")
E34-W07
(41)
1.7 4.7 1.5e21
3 W32S06
(510",-28")
W19-W40
(21)
0.8 3.2 4.5e20
4 W16S21
(245",-278")
W11-W22
(11)
0.7 5.2 6.2e20
5 E33N59
(-262",852")
E49-E04
(45)
0.6 -0.3 -7.6e19
6 W41N52
(381",787")
W21-W45
(24)
0.4 -0.9 -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 24-Apr-2024 23:30 UT .