11 April 2024
⇐20240410 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240412⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W15S28
(223",-369") 		W10-W20
(10) 		0.8 -10.2 -1.3e21
2 W20N33
(271",594") 		W10-W29
(19) 		0.6 3.7 4.5e20
3 E00N33
(-5",597") 		E07-W07
(14) 		0.4 10.2 8.7e20
4 E27S44
(-316",-603") 		E30-E24
(6) 		0.1 -1.8 -4.6e19
5 W30S23
(445",-289") 		W28-W32
(4) 		0.1 -9.7 -9.7e19
6 W24S23
(366",-294") 		W22-W28
(6) 		0.0 -12.1 -8.0e19

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 11-Apr-2024 23:30 UT .