17 September 2022
⇐20220916 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220918⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E22N12
(-355",93") 		E50-W16
(66) 		9.2 0.4 6.4e20
2 W55N33
(654",463") 		W32-W61
(29) 		1.0 -2.7 -7.6e20
3 E06N29
(-91",352") 		E09-E04
(5) 		0.0 -6.8 -5.4e19
4 W19N11
(311",69") 		W18-W21
(3) 		0.0 -1.7 -1.1e19

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 17-Sep-2022 23:30 UT .