27 October 2022
⇐20221026 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221028⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W08N06
(140",16") 		E13-W23
(36) 		4.9 2.4 1.8e21
2 E24N36
(-312",510") 		E32-W06
(38) 		3.2 2.9 1.9e21
3 E22S58
(-195",-856") 		E38-E10
(28) 		1.1 -0.8 -3.2e20
4 W38N24
(551",327") 		W30-W47
(17) 		0.8 2.1 3.5e20
5 E16S03
(-271",-135") 		E19-E12
(7) 		0.3 1.3 5.3e19
6 E29N48
(-312",674") 		E38-E22
(16) 		0.2 -0.8 -4.1e19
7 E28N78
(-91",927") 		E66-E15
(51) 		0.2 1.0 1.0e20
8 W27N25
(401",342") 		W25-W30
(5) 		0.1 4.4 8.3e19
9 W17S74
(76",-948") 		E02-W30
(32) 		0.1 -0.8 -4.4e19

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 27-Oct-2022 15:30 UT .