16 January 2024
20240115 Week Rotation Today Rotation Week 20240117



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W47N10
(705",222")
W33-W57
(24)
1.1 1.6 4.1e20
2 E22N19
(-342",393")
E32-E08
(24)
0.6 11.5 1.3e21
3 E04N14
(-66",308")
E07-W01
(8)
0.3 7.4 3.3e20
4 E10S34
(-136",-480")
E12-E07
(5)
0.1 -6.3 -1.5e20
5 E29S55
(-276",-753")
E34-E24
(10)
0.0 -0.6 -6.9e18

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 16-Jan-2024 20:30 UT .