27 February 2016
⇐20160226 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160228⇒

NOAA
3 Active Regions
12501
12506
12507

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 W19N44
(225",748") 		E28-W62
(90) 		9.7 1.4 1.1e34
2 W51S70
(261",-877") 		W15-W88
(73) 		1.1 -1.3 -3.8e33
3 E21S84
(-37",-943") 		E61-W35
(96) 		0.1 -1.3 -7.1e32

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 27-Feb-2016 21:35 UT .