10 January 2024
20240109 Week Rotation Today Rotation Week 20240111



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E40N11
(-614",234")
E46-E33
(13)
0.5 1.4 1.4e20
2 W40S31
(531",-463")
W37-W44
(7)
0.3 -0.8 -5.3e19
3 W47S36
(578",-529")
W44-W50
(6)
0.0 2.4 2.7e19

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 10-Jan-2024 20:30 UT .