20 October 2022
⇐20221019 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221021⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E21S41
(-266",-690") 		E63-W25
(88) 		8.4 -2.0 -4.1e21
2 E55N22
(-727",315") 		E62-E45
(17) 		0.5 1.3 1.6e20
3 W23S14
(367",-309") 		W18-W28
(10) 		0.3 -4.6 -2.2e20
4 E33N36
(-426",498") 		E36-E29
(7) 		0.0 -1.7 -1.6e19

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 20-Oct-2022 23:30 UT .