21 November 2022
⇐20221120 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221122⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W47S40
(548",-644") 		W22-W64
(42) 		3.1 -1.6 -1.5e21
2 W13N20
(202",294") 		W00-W20
(20) 		0.9 3.3 5.0e20
3 E28N04
(-452",34") 		E38-E19
(19) 		0.9 0.9 1.3e20
4 E59N28
(-733",444") 		E63-E48
(15) 		0.5 2.7 4.3e20
5 W39N11
(596",158") 		W32-W46
(14) 		0.4 1.0 7.6e19
6 E54S63
(-357",-874") 		E68-E54
(14) 		0.2 -0.8 -9.1e19
7 E38S70
(-210",-919") 		E44-E24
(20) 		0.1 -0.3 -2.6e19
8 E02N23
(-36",354") 		E04-W01
(5) 		0.1 13.8 2.2e20

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 21-Nov-2022 20:30 UT .