22 September 2016
⇐20160921 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160923⇒

NOAA
3 Active Regions
12593
12595
12592

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 E27N64
(-193",806") 		E57-W33
(90) 		5.6 0.6 4.0e33
2 E59N26
(-732",367") 		E69-E37
(32) 		1.8 2.5 4.9e33
3 E10S01
(-166",-125") 		E16-E05
(11) 		0.8 2.8 4.5e32
4 W34S65
(220",-904") 		W09-W58
(49) 		0.4 -0.9 -2.2e33

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 22-Sep-2016 20:30 UT .