1 December 2023
20231130 Week Rotation Today Rotation Week 20231202



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E15S15
(-252",-260")
E52-W13
(65)
7.9 -4.0 -5.2e21
2 W35N63
(250",864")
W23-W44
(21)
0.2 -0.6 -5.0e19
3 W17N43
(209",651")
W11-W23
(12)
0.1 -7.9 -1.4e20
4 E49N50
(-472",742")
E57-E39
(18)
0.1 -1.5 -3.8e19

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 1-Dec-2023 20:30 UT .