8 April 2014
⇐20140407 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20140409⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E34S51
(-340",-687") 		E56-W27
(83) 		6.7 -1.3 -6.9e33
2 E29N28
(-417",525") 		E59-E07
(52) 		2.6 1.4 1.8e33
3 W24N58
(209",858") 		E16-W46
(62) 		1.5 0.0 9.5e31
4 E11N40
(-144",694") 		E18-E05
(13) 		0.2 -0.7 -9.7e31
5 E16N06
(-264",198") 		E18-E13
(5) 		0.1 -1.0 -3.2e31
6 E29N10
(-453",249") 		E32-E26
(6) 		0.1 -2.0 -7.4e31
7 E30N05
(-484",166") 		E32-E29
(3) 		0.1 -4.2 -7.7e31

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 8-Apr-2014 23:35 UT .