21 January 2016
⇐20160120 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160122⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W25S59
(208",-795") 		E77-W38
(115) 		4.5 -1.7 -7.5e33
2 E35N42
(-411",706") 		E65-E12
(53) 		3.2 1.0 3.0e33
3 W45S33
(581",-481") 		W36-W47
(11) 		0.4 -5.6 -1.6e33
4 W09S08
(153",-53") 		W07-W11
(4) 		0.0 9.6 7.6e31

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 21-Jan-2016 21:35 UT .