23 November 2023
20231122 Week Rotation Today Rotation Week 20231124



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E03N15
(-46",224")
E14-W08
(22)
1.7 5.6 1.5e21
2 W40S36
(512",-586")
W28-W52
(24)
0.6 -4.0 -6.4e20
3 W09N09
(144",114")
W05-W12
(7)
0.2 8.8 2.7e20
4 W41S24
(588",-411")
W38-W44
(6)
0.1 -2.6 -6.5e19
5 E12N56
(-108",793")
E15-E07
(8)
0.1 -3.4 -6.1e19

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 23-Nov-2023 20:30 UT .