25 October 2022
⇐20221024 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221026⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E25N05
(-403",11") 		40
(8.2e04) 		2.1 7.7 6.3e21
2 W13N26
(196",342") 		E03-W22
(25) 		1.9 2.5 7.8e20
3 E46N32
(-594",462") 		E59-E37
(22) 		1.3 2.6 8.1e20
4 W59S38
(648",-631") 		W43-W73
(30) 		0.7 -0.5 -1.6e20
5 E23N43
(-274",606") 		E35-E04
(31) 		0.7 -0.5 -7.3e19
6 W40N08
(618",73") 		W28-W52
(24) 		0.5 -0.5 -5.1e19
7 W03N50
(37",679") 		E02-W07
(9) 		0.1 -1.1 -3.6e19
8 W25N40
(311",557") 		W21-W29
(8) 		0.1 0.8 1.3e19
9 W33S56
(294",-835") 		W29-W35
(6) 		0.0 -1.2 -1.9e19
10 W06N41
(79",566") 		W05-W08
(3) 		0.0 -1.7 -1.2e19

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 25-Oct-2022 23:30 UT .