7 February 2024
20240206 Week Rotation Today Rotation Week 20240208



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E06S57
(-57",-756")
E60-W42
(102)
4.1 0.5 5.3e20
2 W16S17
(250",-177")
W12-W19
(7)
0.2 -41.0 -1.2e21
3 W07N61
(57",899")
W04-W10
(6)
0.1 -0.8 -1.7e19
4 W43S38
(526",-528")
W41-W44
(3)
0.0 2.7 2.2e19

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 7-Feb-2024 20:30 UT .