22 November 2023
20231121 Week Rotation Today Rotation Week 20231123



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E16N14
(-264",210")
E26-E00
(26)
2.0 5.9 1.9e21
2 W62N14
(832",211")
W56-W68
(12)
0.3 3.6 3.9e20
3 W18S05
(307",-124")
W14-W22
(8)
0.1 0.9 1.9e19
4 W23S38
(301",-630")
W19-W25
(6)
0.1 -5.7 -1.1e20

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 22-Nov-2023 20:30 UT .