19 August 2016
⇐20160818 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160820⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W04N72
(18",862") 		E80-W67
(147) 		2.5 0.6 2.4e33
2 E05S22
(-72",-453") 		E13-W09
(22) 		2.4 -0.3 -2.2e32
3 E31S14
(-477",-321") 		E44-E14
(30) 		2.4 -1.2 -1.1e33
4 W37N30
(500",390") 		W26-W50
(24) 		1.3 -2.1 -1.3e33
5 W15S63
(111",-891") 		E54-W63
(117) 		1.3 -0.9 -3.4e33
6 E15S03
(-244",-156") 		E20-E08
(12) 		0.5 -1.8 -2.1e32
7 E47S23
(-639",-433") 		E58-E39
(19) 		0.5 -0.9 -3.7e32
8 E29S34
(-380",-614") 		E34-E23
(11) 		0.4 0.8 2.1e32
9 W51S32
(621",-565") 		W43-W62
(19) 		0.3 -0.5 -2.0e32

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 19-Aug-2016 23:31 UT .