9 December 2015
⇐20151208 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151210⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W43N49
(439",736") 		E10-W75
(85) 		7.5 0.8 7.4e33
2 W22S15
(349",-253") 		W03-W47
(44) 		3.6 4.5 4.5e33
3 E52N14
(-746",240") 		E63-E38
(25) 		0.6 -5.6 -2.4e33
4 W59S05
(834",-85") 		W50-W66
(16) 		0.2 1.7 3.9e32

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 9-Dec-2015 21:35 UT .