5 December 2023
⇐20231204 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231206⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W50S17
(716",-285") 		W29-W63
(34) 		2.2 -2.6 -1.5e21
2 E37S33
(-495",-540") 		E65-E16
(49) 		1.0 3.4 8.1e20

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 5-Dec-2023 20:30 UT .