13 October 2023
⇐20231012 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20231014⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22S45
(-259",-742") 		E39-E06
(33) 		0.5 1.4 1.9e20
2 W11S29
(157",-558") 		16
(8.4e03) 		9.5 17.2 1.4e21
3 W15S11
(238",-284") 		W11-W18
(7) 		0.4 5.4 3.6e20

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 13-Oct-2023 23:30 UT .