2 April 2017
⇐20170401 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170403⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W01S62
(7",-795") 		E66-W56
(122) 		8.2 -1.1 -8.2e33
2 E37S25
(-531",-319") 		E56-E19
(37) 		1.4 -0.4 -2.5e32
3 E27N63
(-204",891") 		E60-E13
(47) 		0.6 0.7 1.4e33
4 W32N08
(502",225") 		W25-W37
(12) 		0.5 1.6 2.9e32
5 E42N39
(-496",668") 		E44-E39
(5) 		0.4 0.3 1.4e32
6 E07S14
(-121",-124") 		E11-E04
(7) 		0.2 -1.5 -5.3e31

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 2-Apr-2017 19:30 UT .