18 April 2016
⇐20160417 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160419⇒

NOAA
3 Active Regions
12529
12532
12531

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 W29N36
(375",621") 		W02-W46
(44) 		5.3 1.9 6.5e33
2 E45N38
(-540",630") 		E62-E00
(62) 		4.2 1.4 7.0e33
3 W12S70
(66",-866") 		E81-W62
(143) 		2.7 -1.5 -6.8e33
4 E48S17
(-680",-214") 		E59-E38
(21) 		1.5 5.1 4.4e33
5 E38N07
(-582",189") 		E40-E35
(5) 		0.1 -26.0 -1.1e33

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 18-Apr-2016 23:26 UT .