30 September 2022
⇐20220929 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221001⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W30N25
(439",316") 		E02-W51
(53) 		7.4 1.6 2.2e21
2 E08N54
(-76",705") 		E23-W86
(109) 		4.6 3.1 3.4e21
3 W17S16
(267",-371") 		W15-W19
(4) 		0.1 -2.2 -2.2e19
4 E47N11
(-694",105") 		E50-E45
(5) 		0.1 -1.4 -1.7e19
5 W23N34
(310",454") 		W20-W27
(7) 		0.0 -1.0 -8.2e18

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 30-Sep-2022 23:30 UT .