25 October 2015
⇐20151024 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20151026⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E33S57
(-285",-846") 		E52-E16
(36) 		1.6 -1.1 -3.5e33
2 E57N48
(-544",679") 		E67-E69
(-2) 		1.5 0.1 2.8e32
3 E07N18
(-106",211") 		E08-E04
(4) 		0.1 1.2 2.0e31

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 25-Oct-2015 21:35 UT .