16 March 2023
20230315 Week Rotation Today Rotation Week 20230317



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E64S44
(-619",-633")
E76-E36
(40)
2.0 -1.2 -9.4e20
2 W03S22
(45",-240")
E17-W18
(35)
1.9 8.5 2.6e21
3 W27N22
(412",457")
W23-W32
(9)
0.2 10.5 4.4e20
4 E23S11
(-374",-82")
E25-E21
(4)
0.1 -1.0 -1.4e19
5 E29S03
(-462",47")
E31-E27
(4)
0.0 -2.5 -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 16-Mar-2023 20:30 UT .