31 January 2015
⇐20150130 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150201⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W03S57
(25",-762") 		E60-W86
(146) 		9.4 -2.4 -1.6e34
2 E22N36
(-295",645") 		E28-E16
(12) 		0.2 -0.9 -1.1e32
3 W46N29
(613",537") 		W45-W48
(3) 		0.0 2.5 7.9e31

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 31-Jan-2015 22:35 UT .