26 March 2024
20240325 Week Rotation Today Rotation Week 20240327



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E21S31
(-291",-396")
E27-E09
(18)
1.0 7.9 1.3e21
2 W33N49
(339",789")
W15-W55
(40)
0.9 -0.9 -2.7e20
3 E70S35
(-738",-519")
E70-E64
(6)
0.1 -0.2 -6.1e18
4 E06S04
(-107",46")
E08-E05
(3)
0.0 3.8 2.0e19

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 26-Mar-2024 20:30 UT .