26 October 2013
⇐20131025 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131027⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E41N48
(-423",674") 		E59-E23
(36) 		1.2 0.4 4.0e32
2 E39N29
(-538",404") 		E48-E31
(17) 		0.3 3.9 5.0e32
3 W30N49
(314",684") 		W27-W32
(5) 		0.1 -1.9 -8.3e31

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 26-Oct-2013 23:35 UT .