1 March 2017
⇐20170228 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170302⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W19S51
(194",-675") 		E71-W51
(122) 		14.0 -1.4 -1.1e34
2 E33N02
(-525",135") 		E50-E17
(33) 		1.0 0.7 2.6e32
3 W29S11
(468",-79") 		W27-W31
(4) 		0.1 -1.4 -2.6e31
4 E30S19
(-460",-211") 		E31-E29
(2) 		0.0 -0.7 -8.2e30

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 1-Mar-2017 20:30 UT .