19 December 2016
⇐20161218 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20161220⇒

NOAA
2 Active Regions
12619
12618

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 W10N46
(124",715") 		E55-W44
(99) 		12.4 0.7 5.0e33
2 E26S14
(-414",-222") 		E55-W17
(72) 		8.5 1.5 3.6e33

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 19-Dec-2016 20:30 UT .