15 September 2015
⇐20150914 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150916⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W29N44
(327",588") 		E29-W73
(102) 		18.8 1.1 1.0e34
2 W07S62
(55",-893") 		E06-W24
(30) 		0.4 -1.6 -1.6e33

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-Sep-2015 18:30 UT .