29 March 2023
20230328 Week Rotation Today Rotation Week 20230330



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E25N32
(-343",588")
E38-E11
(27)
1.0 -5.2 -1.2e21
2 E19N58
(-165",865")
E36-W02
(38)
0.5 -0.3 -5.4e19
3 E28S04
(-458",30")
8
(4.1e03)
-1.6 5.1 2.1e20
4 E01N05
(-20",197")
E02-E00
(2)
0.1 2.2 2.6e19

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 29-Mar-2023 23:30 UT .