1 October 2022
⇐20220930 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221002⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W50N50
(471",682") 		E11-W62
(73) 		5.3 0.9 1.5e21
2 W32N02
(507",-58") 		W14-W45
(31) 		2.8 1.9 9.3e20
3 W15N27
(225",333") 		E01-W28
(29) 		1.8 6.7 2.1e21
4 E51N04
(-748",-3") 		E58-E45
(13) 		0.4 1.4 1.4e20
5 W41N41
(474",561") 		W36-W48
(12) 		0.2 -0.6 -2.3e19
6 W06N04
(93",-41") 		W04-W07
(3) 		0.1 -1.3 -1.3e19
7 E33N60
(-267",774") 		E37-E28
(9) 		0.0 -0.4 -5.6e18
8 E17N30
(-241",378") 		E19-E15
(4) 		0.0 47.5 3.7e20

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 1-Oct-2022 23:30 UT .