16 May 2012
⇐20120515 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20120517⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W50N36
(591",576") 		W45-W54
(9) 		0.4 3.0 1.5e33
2 E10N46
(-118",710") 		E13-E07
(6) 		0.0 3.6 9.9e31

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 16-May-2012 23:00 UT .