3 February 2024
20240202 Week Rotation Today Rotation Week 20240204



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W24S50
(258",-676")
E20-W32
(52)
3.4 1.3 1.0e21
2 E35S21
(-520",-271")
E37-E33
(4)
0.0 -5.1 -4.8e19
3 E40S15
(-607",-180")
E42-E39
(3)
0.0 -142.2 -1.2e21

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 3-Feb-2024 20:30 UT .