2 April 2015
⇐20150401 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150403⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W18N33
(253",610") 		E40-W32
(72) 		7.2 5.2 1.8e34
2 W36S66
(231",-835") 		E85-W73
(158) 		4.1 -1.0 -6.7e33

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 2-Apr-2015 23:35 UT .