23 January 2016
⇐20160122 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160124⇒

NOAA
4 Active Regions
12486
12487
12488
12485

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 E41N43
(-471",712") 		E77-W16
(93) 		7.4 1.6 1.4e34
2 W50S63
(337",-843") 		E64-W66
(130) 		2.6 -1.0 -6.1e33

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 23-Jan-2016 21:35 UT .