20 March 2014
⇐20140319 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140321⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W02N46
(21",771") 		E15-W15
(30) 		1.5 0.4 4.9e32
2 E02N02
(-27",146") 		E08-W08
(16) 		0.9 6.2 9.9e32
3 E49S71
(-234",-882") 		E74-E32
(42) 		0.4 -0.6 -6.3e32

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 20-Mar-2014 20:35 UT .