27 April 2016
⇐20160426 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160428⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E18N19
(-277",382") 		E30-W01
(31) 		2.6 -4.3 -3.4e33
2 E06S19
(-97",-232") 		E12-W04
(16) 		1.2 -3.3 -8.0e32
3 E39S76
(-144",-909") 		E77-W34
(111) 		0.7 -1.1 -3.1e33
4 W17N65
(115",893") 		E14-W30
(44) 		0.5 1.0 1.4e33

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 27-Apr-2016 23:43 UT .