2 September 2023
⇐20230901 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20230903⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E24N38
(-307",500") 		E44-E03
(41) 		1.0 -4.4 -8.4e20
2 E06S52
(-65",-816") 		E20-W11
(31) 		0.8 1.8 4.4e20
3 W27N40
(330",525") 		W20-W34
(14) 		0.4 3.1 2.4e20
4 E14N58
(-124",739") 		E21-E06
(15) 		0.2 -0.5 -2.0e19
5 W15N06
(249",-13") 		W14-W17
(3) 		0.1 -3.5 -5.3e19
6 E44N42
(-492",573") 		E48-E41
(7) 		0.1 -0.6 -1.1e19
7 W31N55
(280",715") 		W27-W36
(9) 		0.1 -1.0 -1.3e19
8 E08S66
(-52",-912") 		E13-E02
(11) 		0.0 -0.3 -8.5e18

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 2-Sep-2023 23:30 UT .