3 October 2022
⇐20221002 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221004⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E37S40
(-442",-679") 		E59-E22
(37) 		1.2 2.7 9.6e20
2 W58S00
(817",-60") 		W49-W71
(22) 		1.0 1.2 3.5e20
3 E22N01
(-360",-90") 		E29-E14
(15) 		1.0 2.0 3.2e20
4 W35N29
(477",384") 		W20-W44
(24) 		0.9 5.9 1.1e21
5 W43N73
(186",890") 		W118-W68
(-50) 		0.6 0.8 2.3e20
6 W09N28
(140",349") 		W05-W14
(9) 		0.2 42.5 1.4e21
7 W39N40
(465",551") 		W36-W40
(4) 		0.1 1.7 5.1e19

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 3-Oct-2022 23:30 UT .