28 March 2024
⇐20240327 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240329⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W15S33
(205",-423") 		E05-W28
(33) 		1.4 7.4 1.8e21
2 E41S40
(-487",-552") 		E64-E26
(38) 		0.9 0.6 1.2e20
3 E38N30
(-511",556") 		E45-E28
(17) 		0.9 -6.5 -1.4e21
4 W24S00
(387",100") 		W19-W30
(11) 		0.5 7.6 6.2e20
5 E49S10
(-711",-99") 		E52-E44
(8) 		0.4 -5.8 -4.7e20
6 E15S50
(-160",-662") 		E24-E06
(18) 		0.2 1.0 5.2e19
7 E45N54
(-396",823") 		E51-E37
(14) 		0.2 -0.9 -8.3e19

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 28-Mar-2024 20:30 UT .