29 December 2022
⇐20221228 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221230⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E41S15
(-616",-223") 		E51-E28
(23) 		3.2 -1.4 -9.2e20
2 E04S06
(-75",-61") 		E19-W18
(37) 		3.2 -0.4 -2.0e20
3 W33N29
(471",511") 		W20-W47
(27) 		2.8 5.8 3.6e21
4 W22S70
(123",-904") 		E30-W33
(63) 		1.1 -0.6 -2.9e20
5 W08S52
(80",-745") 		E03-W14
(17) 		0.3 -1.3 -8.7e19
6 E49N39
(-575",634") 		E55-E39
(16) 		0.2 -5.2 -3.7e20
7 E19N03
(-317",94") 		E21-E16
(5) 		0.1 -1.0 -1.9e19
8 W24N00
(391",50") 		W22-W26
(4) 		0.1 1.6 2.8e19
9 E21S09
(-352",-116") 		E23-E19
(4) 		0.1 -2.2 -2.5e19
10 E34N34
(-453",579") 		E38-E30
(8) 		0.1 -2.8 -3.6e19
11 W29S05
(471",-46") 		W27-W31
(4) 		0.0 -0.7 -5.1e18

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 29-Dec-2022 20:30 UT .