24 December 2014
⇐20141223 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20141225⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E15N46
(-177",727") 		E34-W07
(41) 		4.6 1.0 3.0e33
2 E22S63
(-163",-857") 		E80-W54
(134) 		4.6 -0.6 -4.2e33
3 W15N56
(135",831") 		W11-W17
(6) 		0.0 -2.1 -1.1e32

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 24-Dec-2014 22:35 UT .