7 April 2017
⇐20170406 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170408⇒

NOAA
3 Active Regions
12645
12648
12647

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W21S64
(147",-816") 		E42-W87
(129) 		5.9 -1.1 -7.5e33
2 W10N57
(87",858") 		E64-W38
(102) 		2.3 0.5 1.7e33
3 W13N30
(193",562") 		E10-W28
(38) 		2.2 0.9 7.7e32
4 W28S30
(394",-391") 		W08-W45
(37) 		1.5 -0.6 -3.0e32
5 W38S25
(537",-327") 		W34-W44
(10) 		0.1 -0.5 -2.4e31

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 7-Apr-2017 19:30 UT .