5 March 2023
20230304 Week Rotation Today Rotation Week 20230306



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W45N16
(662",344")
W25-W60
(35)
3.8 -2.3 -2.1e21
2 W53S59
(404",-782")
W34-W65
(31)
0.3 -0.9 -8.6e19
3 W05S17
(83",-166")
W02-W08
(6)
0.0 -10.9 -8.3e19
4 W21N38
(271",685")
W19-W23
(4)
0.0 -6.2 -5.7e19

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 5-Mar-2023 20:30 UT .