26 September 2022
⇐20220925 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220927⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E23N29
(-331",364") 		E42-E05
(37) 		3.6 1.4 9.1e20
2 E41N04
(-625",-24") 		E58-E25
(33) 		3.3 1.8 1.2e21
3 W45S35
(551",-619") 		W21-W57
(36) 		2.0 -1.6 -9.3e20
4 E47N61
(-336",798") 		E60-E28
(32) 		0.7 0.5 1.2e20
5 W33S55
(299",-831") 		W23-W43
(20) 		0.3 -0.9 -1.2e20
6 E20N41
(-247",538") 		E22-E15
(7) 		0.1 -0.7 -1.8e19
7 W19N06
(313",-4") 		W15-W22
(7) 		0.1 -1.2 -1.9e19
8 W06S68
(38",-924") 		E04-W09
(13) 		0.1 -0.3 -1.6e19
9 E04N26
(-64",310") 		E06-E02
(4) 		0.1 2.7 3.0e19
10 W00N46
(2",610") 		E02-W02
(4) 		0.0 0.6 5.2e18

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 26-Sep-2022 23:30 UT .