23 May 2014
⇐20140522 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140524⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W05N48
(49",728") 		E29-W57
(86) 		5.2 0.1 3.6e32
2 W27S06
(423",-73") 		W24-W29
(5) 		0.3 4.4 3.4e32
3 E36N16
(-541",277") 		E40-E33
(7) 		0.1 -1.2 -2.6e31

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 23-May-2014 23:35 UT .