4 March 2014
⇐20140303 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140305⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E35N38
(-439",670") 		E60-E10
(50) 		5.5 -3.0 -1.4e34
2 E41S55
(-361",-738") 		E87-W05
(92) 		3.7 -0.8 -2.9e33

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 4-Mar-2014 20:35 UT .