7 October 2023
20231006 Week Rotation Today Rotation Week 20231008



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E14S18
(-217",-393")
E21-W08
(29)
3.4 -5.8 -3.4e21
2 E12N55
(-118",721")
E34-W22
(56)
1.6 -0.3 -9.6e19
3 W18S21
(277",-441")
W10-W26
(16)
0.3 -12.8 -6.0e20
4 E15S35
(-199",-632")
E18-E11
(7)
0.1 -16.9 -2.0e20

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-Oct-2023 23:30 UT .