23 December 2015
⇐20151222 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151224⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W08S57
(70",-806") 		E55-W36
(91) 		6.2 -1.8 -9.9e33
2 E43N47
(-454",728") 		E78-E54
(24) 		2.9 0.8 2.8e33
3 W03S10
(49",-130") 		W01-W04
(3) 		0.1 -2.6 -2.5e31

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 23-Dec-2015 21:35 UT .