17 May 2014
⇐20140516 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140518⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E21S54
(-197",-743") 		E74-W30
(104) 		5.4 -0.2 -6.8e32
2 W32N51
(313",761") 		W01-W45
(44) 		1.7 0.4 8.5e32
3 E20S29
(-279",-423") 		E24-E15
(9) 		0.1 -7.0 -3.1e32

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 17-May-2014 23:35 UT .