27 January 2014
⇐20140126 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140128⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E43N24
(-603",464") 		E56-E36
(20) 		0.5 1.5 5.4e32
2 E36N52
(-349",813") 		E48-E21
(27) 		0.5 0.6 4.8e32
3 E11N15
(-185",346") 		E16-E04
(12) 		0.4 2.9 2.8e32

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 27-Jan-2014 20:35 UT .