20 August 2016
⇐20160819 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160821⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E19S21
(-292",-437") 		E41-W14
(55) 		5.7 -0.6 -1.2e33
2 W14N72
(72",859") 		E25-W74
(99) 		1.9 0.8 2.6e33
3 W33S60
(263",-861") 		W15-W55
(40) 		0.6 -0.7 -1.3e33
4 E20N47
(-223",623") 		E32-E08
(24) 		0.6 0.5 1.5e32
5 E16S68
(-98",-914") 		E49-W24
(73) 		0.5 -1.0 -2.6e33
6 W49N27
(640",367") 		W40-W59
(19) 		0.5 -2.3 -7.4e32
7 W13S29
(180",-557") 		W05-W19
(14) 		0.3 -0.6 -8.4e31
8 E32N10
(-492",63") 		E34-E29
(5) 		0.1 -4.0 -1.5e32
9 E26S02
(-417",-130") 		E30-E23
(7) 		0.1 -3.3 -1.0e32

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 20-Aug-2016 20:31 UT .