20 January 2016
⇐20160119 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160121⇒

NOAA
4 Active Regions
12484
12485
12486
12487

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 W09S59
(81",-793") 		E81-W25
(106) 		4.3 -1.6 -5.7e33
2 E44N39
(-526",664") 		E66-E26
(40) 		1.8 1.1 2.2e33
3 W33S33
(447",-467") 		W23-W42
(19) 		0.6 -5.9 -1.7e33

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 20-Jan-2016 21:35 UT .