16 September 2015
⇐20150915 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150917⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W34N44
(384",589") 		E14-W85
(99) 		13.8 1.2 9.9e33
2 W20S65
(141",-903") 		W09-W41
(32) 		0.2 -0.8 -7.2e32

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 16-Sep-2015 18:30 UT .