18 November 2014
⇐20141117 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141119⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W43N51
(416",738") 		E43-W65
(108) 		6.8 0.4 2.9e33
2 W17S05
(276",-133") 		W09-W22
(13) 		0.3 18.6 1.4e33
3 W14S10
(229",-217") 		W11-W16
(5) 		0.1 41.1 8.5e32
4 W22S05
(371",-116") 		W20-W25
(5) 		0.0 15.7 1.5e32

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 18-Nov-2014 22:35 UT .