15 May 2012
⇐20120514 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120516⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W38N38
(456",612") 		W22-W46
(24) 		1.1 2.7 2.2e33
2 W24S26
(343",-388") 		W20-W29
(9) 		0.2 4.7 2.7e32

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 15-May-2012 23:00 UT .