22 December 2015
⇐20151221 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151223⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E11S56
(-106",-795") 		E67-W29
(96) 		6.6 -2.1 -1.2e34
2 E54N43
(-577",680") 		E62-E51
(11) 		0.9 0.9 1.4e33

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 22-Dec-2015 21:35 UT .